summaryrefslogtreecommitdiffstats
path: root/doc
diff options
context:
space:
mode:
authorBen Kaduk <kaduk@mit.edu>2012-10-12 12:05:30 -0400
committerBen Kaduk <kaduk@mit.edu>2012-10-15 17:18:53 -0400
commit612d64fa15ec1efe1bdd0001b62ff1eabab64da5 (patch)
tree3bc6bded0d9f48dc1fa65214a825f7105da0a027 /doc
parent2d807911816667783baebf4d11637689c030b9f9 (diff)
Remove unused texinfo sources
Now that the users guide make rules are removed, some of the texinfo sources are not referenced from anywhere and can be safely removed. ticket: 7408
Diffstat (limited to 'doc')
-rw-r--r--doc/glossary.texinfo64
-rw-r--r--doc/user-guide.texinfo1711
2 files changed, 0 insertions, 1775 deletions
diff --git a/doc/glossary.texinfo b/doc/glossary.texinfo
deleted file mode 100644
index d49a56a7fb..0000000000
--- a/doc/glossary.texinfo
+++ /dev/null
@@ -1,64 +0,0 @@
-@table @b
-@item client
-an entity that can obtain a ticket. This entity is usually either a
-user or a host.
-
-@item host
-a computer that can be accessed over a network.
-
-@item Kerberos
-in Greek mythology, the three-headed dog that guards the entrance to the
-underworld. In the computing world, Kerberos is a network security
-package that was developed at MIT.
-
-@item KDC
-Key Distribution Center. A machine that issues Kerberos tickets.
-
-@item keytab
-a @b{key tab}le file containing one or more keys. A host or service
-uses a @dfn{keytab} file in much the same way as a user uses his/her
-password.
-
-@item principal
-a string that names a specific entity to which a set of credentials may
-be assigned. It can have an arbitrary number of components, but
-generally has three:
-
-@table @b
-@item primary
-the first part of a Kerberos @i{principal}. In the case of a user, it
-is the username. In the case of a service, it is the name of the
-service.
-
-@item instance
-the second part of a Kerberos @i{principal}. It gives information that
-qualifies the primary. The instance may be null. In the case of a
-user, the instance is often used to describe the intended use of the
-corresponding credentials. In the case of a host, the instance is the
-fully qualified hostname.
-
-@item realm
-the logical network served by a single Kerberos database and a set of
-Key Distribution Centers. By convention, realm names are generally all
-uppercase letters, to differentiate the realm from the internet domain.
-@end table
-
-@noindent
-The typical format of a typical Kerberos principal is
-primary/instance@@REALM.
-
-@item service
-any program or computer you access over a network. Examples of services
-include ``host'' (a host, @i{e.g.}, when you use @code{telnet} and
-@code{rsh}), ``ftp'' (FTP), ``krbtgt'' (authentication;
-cf. @i{ticket-granting ticket}), and ``pop'' (email).
-
-@item ticket
-a temporary set of electronic credentials that verify the identity of a
-client for a particular service.
-
-@item TGT
-Ticket-Granting Ticket. A special Kerberos ticket that permits the
-client to obtain additional Kerberos tickets within the same Kerberos
-realm.
-@end table
diff --git a/doc/user-guide.texinfo b/doc/user-guide.texinfo
deleted file mode 100644
index 0dafe875c7..0000000000
--- a/doc/user-guide.texinfo
+++ /dev/null
@@ -1,1711 +0,0 @@
-\input texinfo @c -*-texinfo-*-
-@c %**start of header
-@c guide
-@setfilename krb5-user.info
-@settitle Kerberos V5 UNIX User's Guide
-@setchapternewpage odd @c chapter begins on next odd page
-@c @setchapternewpage on @c chapter begins on next page
-@c @smallbook @c Format for 7" X 9.25" paper
-@documentencoding UTF-8
-@c %**end of header
-@copying
-Copyright @copyright{} 1985-2010 by the Massachusetts Institute of Technology.
-@end copying
-
-@paragraphindent 0
-@iftex
-@parskip 6pt plus 6pt
-@end iftex
-
-@dircategory Kerberos
-@direntry
-* krb5-user: (krb5-user). Kerberos V5 UNIX User's Guide
-@end direntry
-
-@include definitions.texinfo
-@set EDITION 1.0
-
-@finalout @c don't print black warning boxes
-
-@titlepage
-@title @value{PRODUCT} UNIX User's Guide
-@subtitle Release: @value{RELEASE}
-@subtitle Document Edition: @value{EDITION}
-@subtitle Last updated: @value{UPDATED}
-@author @value{COMPANY}
-
-@page
-@vskip 0pt plus 1filll
-@insertcopying
-@end titlepage
-
-@comment node-name, next, previous, up
-@node Top, Introduction, (dir), (dir)
-
-@ifinfo
-This file describes how to use the @value{PRODUCT} client programs.
-
-@insertcopying
-@end ifinfo
-
-@c The master menu is updated using emacs19's M-x texinfo-all-menus-update
-@c function. Don't forget to run M-x texinfo-every-node-update after
-@c you add a new section or subsection, or after you've rearranged the
-@c comand before each @section or @subsection! All you need to enter
-@c is:
-@c
-@c @section New Section Name
-@c
-@c M-x texinfo-every-node-update will take care of calculating the
-@c node's forward and back pointers.
-@c
-@c ---------------------------------------------------------------------
-
-@menu
-* Introduction::
-* Kerberos V5 Tutorial::
-* Kerberos V5 Reference::
-* Kerberos Glossary::
-* Copyright::
-@end menu
-
-@node Introduction, Kerberos V5 Tutorial, Top, Top
-@chapter Introduction
-
-@ifset CYGNUS
-@value{PRODUCT} is based on the Kerberos V5 authentication system
-developed at MIT.
-@end ifset
-@ifset MIT
-Kerberos V5 is an authentication system developed at MIT.
-@end ifset
-Kerberos is named for the three-headed watchdog from Greek mythology,
-who guarded the entrance to the underworld.
-
-Under Kerberos, a client (generally either a user or a service) sends a
-request for a ticket to the @i{Key Distribution Center} (KDC). The KDC
-creates a @dfn{ticket-granting ticket} (TGT) for the client, encrypts it
-using the client's password as the key, and sends the encrypted TGT back
-to the client. The client then attempts to decrypt the TGT, using its
-password. If the client successfully decrypts the TGT (@i{i.e.}, if the
-client gave the correct password), it keeps the decrypted TGT, which
-indicates proof of the client's identity.
-
-The TGT, which expires at a specified time, permits the client to obtain
-additional tickets, which give permission for specific services. The
-requesting and granting of these additional tickets is user-transparent.
-
-Since Kerberos negotiates authenticated, and optionally encrypted,
-communications between two points anywhere on the internet, it provides
-a layer of security that is not dependent on which side of a firewall
-either client is on. Since studies have shown that half of the computer
-security breaches in industry happen from @i{inside} firewalls,
-@value{COMPANY}'s @value{PRODUCT} plays a vital role in maintaining your
-network security.
-
-The @value{PRODUCT} package is designed to be easy to use. Most of the
-commands are nearly identical to UNIX network programs you already
-use. @value{PRODUCT} is a @dfn{single-sign-on} system, which means
-that you have to type your password only once per session, and Kerberos
-does the authenticating and encrypting transparently.
-
-@menu
-* What is a Ticket?::
-* What is a Kerberos Principal?::
-@end menu
-
-@node What is a Ticket?, What is a Kerberos Principal?, Introduction, Introduction
-@section What is a Ticket?
-
-Your Kerberos @dfn{credentials}, or ``@dfn{tickets}'', are a set of
-electronic information that can be used to verify your identity. Your
-Kerberos tickets may be stored in a file, or they may exist only in
-memory.
-
-The first ticket you obtain is a @dfn{ticket-granting ticket}, which
-permits you to obtain additional tickets. These additional tickets give
-you permission for specific services. The requesting and granting of
-these additional tickets happens transparently.
-
-A good analogy for the ticket-granting ticket is a three-day ski pass
-that is good at four different resorts. You show the pass at whichever
-resort you decide to go to (until it expires), and you receive a lift
-ticket for that resort. Once you have the lift ticket, you can ski all
-you want at that resort. If you go to another resort the next day, you
-once again show your pass, and you get an additional lift ticket for the
-new resort. The difference is that the @value{PRODUCT} programs notice
-that you have the weekend ski pass, and get the lift ticket for you, so
-you don't have to perform the transactions yourself.
-
-@node What is a Kerberos Principal?, , What is a Ticket?, Introduction
-@section What is a Kerberos Principal?
-
-A Kerberos @dfn{principal} is a unique identity to which Kerberos can
-assign tickets. Principals can have an arbitrary number of
-components. Each component is separated by a component separator,
-generally `/'. The last component is the realm, separated from the
-rest of the principal by the realm separator, generally `@@'. If there
-is no realm component in the principal, then it will be assumed that
-the principal is in the default realm for the context in which it is
-being used.
-
-Traditionally, a principal is divided into three parts: the
-@dfn{primary}, the @dfn{instance}, and the @dfn{realm}. The format of
-a typical Kerberos V5 principal is @code{primary/instance@@REALM}.
-
-@itemize @bullet
-@item The @dfn{primary} is the first part of the principal. In the case
-of a user, it's the same as your username. For a host, the primary is
-the word @code{host}.
-
-@item The @dfn{instance} is an optional string that qualifies the
-primary. The instance is separated from the primary by a slash
-(@code{/}). In the case of a user, the instance is usually null, but a
-user might also have an additional principal, with an instance called
-@samp{admin}, which he/she uses to administrate a database. The
-principal @code{@value{RANDOMUSER1}@@@value{PRIMARYREALM}} is completely
-separate from the principal
-@code{@value{RANDOMUSER1}/admin@@@value{PRIMARYREALM}}, with a separate
-password, and separate permissions. In the case of a host, the instance
-is the fully qualified hostname, e.g.,
-@code{@value{RANDOMHOST1}.@value{PRIMARYDOMAIN}}.
-
-@item The @dfn{realm} is your Kerberos realm. In most cases, your
-Kerberos realm is your domain name, in upper-case letters. For example,
-the machine @code{@value{RANDOMHOST1}.@value{SECONDDOMAIN}} would be in
-the realm @code{@value{SECONDREALM}}.
-@end itemize
-
-@node Kerberos V5 Tutorial, Kerberos V5 Reference, Introduction, Top
-@chapter Kerberos V5 Tutorial
-
-This tutorial is intended to familiarize you with the @value{PRODUCT}
-client programs. We will represent your prompt as ``@code{shell%}''.
-So an instruction to type the ``@kbd{ls}'' command would be represented as
-follows:
-
-@need 600
-@smallexample
-@group
-@b{shell%} ls
-@end group
-@end smallexample
-
-In these examples, we will use sample usernames, such as
-@code{@value{RANDOMUSER1}} and @code{@value{RANDOMUSER2}}, sample
-hostnames, such as @code{@value{RANDOMHOST1}} and
-@code{@value{RANDOMHOST2}}, and sample domain names, such as
-@code{@value{PRIMARYDOMAIN}} and @code{@value{SECONDDOMAIN}}. When you
-see one of these, substitute your username, hostname, or domain name
-accordingly.
-
-@menu
-* Setting Up to Use Kerberos V5::
-* Ticket Management::
-* Password Management::
-* Kerberos V5 Applications::
-@end menu
-
-@node Setting Up to Use Kerberos V5, Ticket Management, Kerberos V5 Tutorial, Kerberos V5 Tutorial
-@section Setting Up to Use @value{PRODUCT}
-
-Your system administrator will have installed the @value{PRODUCT}
-programs in whichever directory makes the most sense for your system.
-We will use @code{@value{ROOTDIR}} throughout this guide to refer to the
-top-level directory @value{PRODUCT} directory. We will therefor use
-@code{@value{BINDIR}} to denote the location of the @value{PRODUCT} user
-programs. In your installation, the directory name may be different,
-but whatever the directory name is, you should make sure it is included
-in your path. You will probably want to put it @i{ahead of} the
-directories @code{/bin} and @code{/usr/bin} so you will get the
-@value{PRODUCT} network programs, rather than the standard UNIX
-versions, when you type their command names.
-
-@node Ticket Management, Password Management, Setting Up to Use Kerberos V5, Kerberos V5 Tutorial
-@section Ticket Management
-
-On many systems, Kerberos is built into the login program, and you get
-tickets automatically when you log in. Other programs, such as
-@code{rsh}, @code{rcp}, @code{telnet}, and @code{rlogin}, can forward
-copies of your tickets to the remote host. Most of these programs also
-automatically destroy your tickets when they exit. However,
-@value{COMPANY} recommends that you explicitly destroy your Kerberos
-tickets when you are through with them, just to be sure. One way to
-help ensure that this happens is to add the @code{kdestroy} command to
-your @code{.logout} file. Additionally, if you are going to be away
-from your machine and are concerned about an intruder using your
-permissions, it is safest to either destroy all copies of your tickets,
-or use a screensaver that locks the screen.
-
-@need 2000
-@menu
-* Kerberos Ticket Properties::
-* Obtaining Tickets with kinit::
-* Viewing Your Tickets with klist::
-* Destroying Your Tickets with kdestroy::
-@end menu
-
-@node Kerberos Ticket Properties, Obtaining Tickets with kinit, Ticket Management, Ticket Management
-@subsection Kerberos Ticket Properties
-
-@noindent
-There are various properties that Kerberos tickets can have:
-
-If a ticket is @dfn{forwardable}, then the KDC can issue a new ticket with
-a different network address based on the forwardable ticket. This
-allows for authentication forwarding without requiring a password to be
-typed in again. For example, if a user with a forwardable TGT logs
-into a remote system, the KDC could issue a new TGT for that user with
-the network address of the remote system, allowing authentication on
-that host to work as though the user were logged in locally.
-
-When the KDC creates a new ticket based on a forwardable ticket, it
-sets the @dfn{forwarded} flag on that new ticket. Any tickets that are
-created based on a ticket with the forwarded flag set will also have
-their forwarded flags set.
-
-A @dfn{proxiable} ticket is similar to a forwardable ticket in that it
-allows a service to take on the identity of the client. Unlike a
-forwardable ticket, however, a proxiable ticket is only issued for
-specific services. In other words, a ticket-granting ticket cannot be
-issued based on a ticket that is proxiable but not forwardable.
-
-A @dfn{proxy} ticket is one that was issued based on a proxiable ticket.
-
-A @dfn{postdated} ticket is issued with the @i{invalid} flag set.
-After the starting time listed on the ticket, it can be presented to
-the KDC to obtain valid tickets.
-
-Tickets with the @dfn{postdateable} flag set can be used to issue postdated
-tickets.
-
-@dfn{Renewable} tickets can be used to obtain new session keys without
-the user entering their password again. A renewable ticket has two
-expiration times. The first is the time at which this particular
-ticket expires. The second is the latest possible expiration time for
-any ticket issued based on this renewable ticket.
-
-A ticket with the @dfn{initial} flag set was issued based on the
-authentication protocol, and not on a ticket-granting ticket. Clients
-that wish to ensure that the user's key has been recently presented for
-verification could specify that this flag must be set to accept the
-ticket.
-
-An @dfn{invalid} ticket must be rejected by application servers. Postdated
-tickets are usually issued with this flag set, and must be validated by
-the KDC before they can be used.
-
-A @dfn{preauthenticated} ticket is one that was only issued after the
-client requesting the ticket had authenticated itself to the KDC.
-
-The @dfn{hardware authentication} flag is set on a ticket which
-required the use of hardware for authentication. The hardware is
-expected to be possessed only by the client which requested the
-tickets.
-
-If a ticket has the @dfn{transit policy checked} flag set, then the KDC that
-issued this ticket implements the transited-realm check policy and
-checked the transited-realms list on the ticket. The transited-realms
-list contains a list of all intermediate realms between the realm of the
-KDC that issued the first ticket and that of the one that issued the
-current ticket. If this flag is not set, then the application server
-must check the transited realms itself or else reject the ticket.
-
-The @dfn{okay as delegate} flag indicates that the server specified in
-the ticket is suitable as a delegate as determined by the policy of
-that realm. A server that is acting as a delegate has been granted a
-proxy or a forwarded TGT. This flag is a new addition to the
-@value{PRODUCT} protocol and is not yet implemented on MIT servers.
-
-An @dfn{anonymous} ticket is one in which the named principal is a generic
-principal for that realm; it does not actually specify the individual
-that will be using the ticket. This ticket is meant only to securely
-distribute a session key. This is a new addition to the @value{PRODUCT}
-protocol and is not yet implemented on MIT servers.
-
-@node Obtaining Tickets with kinit, Viewing Your Tickets with klist, Kerberos Ticket Properties, Ticket Management
-@subsection Obtaining Tickets with kinit
-
-If your site is using the @value{PRODUCT} login program, you will get
-Kerberos tickets automatically when you log in. If your site uses a
-different login program, you may need to explicitly obtain your Kerberos
-tickets, using the @code{kinit} program. Similarly, if your Kerberos
-tickets expire, use the @code{kinit} program to obtain new ones.
-
-@need 1500
-To use the @code{kinit} program, simply type @kbd{kinit} and then type
-your password at the prompt. For example, Jennifer (whose username is
-@code{@value{RANDOMUSER1}}) works for Bleep, Inc. (a fictitious company
-with the domain name @code{@value{PRIMARYDOMAIN}} and the Kerberos realm
-@code{@value{PRIMARYREALM}}). She would type:
-
-@smallexample
-@group
-@b{shell%} kinit
-@b{Password for @value{RANDOMUSER1}@@@value{PRIMARYREALM}:} @i{<-- [Type @value{RANDOMUSER1}'s password here.]}
-@b{shell%}
-@end group
-@end smallexample
-
-@need 1000
-If you type your password incorrectly, kinit will give you the following
-error message:
-
-@smallexample
-@group
-@b{shell%} kinit
-@b{Password for @value{RANDOMUSER1}@@@value{PRIMARYREALM}:} @i{<-- [Type the wrong password here.]}
-@b{kinit: Password incorrect}
-@b{shell%}
-@end group
-@end smallexample
-
-@noindent and you won't get Kerberos tickets.
-
-@noindent Notice that @code{kinit} assumes you want tickets for your own
-username in your default realm.
-@need 1500
-Suppose Jennifer's friend David is visiting, and he wants to borrow a
-window to check his mail. David needs to get tickets for himself in his
-own realm, @value{SECONDREALM}.@footnote{Note: the realm
-@value{SECONDREALM} must be listed in your computer's Kerberos
-configuration file, @code{/etc/krb5.conf}.} He would type:
-
-@smallexample
-@group
-@b{shell%} kinit @value{RANDOMUSER2}@@@value{SECONDREALM}
-@b{Password for @value{RANDOMUSER2}@@@value{SECONDREALM}:} @i{<-- [Type @value{RANDOMUSER2}'s password here.]}
-@b{shell%}
-@end group
-@end smallexample
-
-@noindent David would then have tickets which he could use to log onto
-his own machine. Note that he typed his password locally on Jennifer's
-machine, but it never went over the network. Kerberos on the local host
-performed the authentication to the KDC in the other realm.
-
-@need 1000
-If you want to be able to forward your tickets to another host, you need
-to request @dfn{forwardable} tickets. You do this by specifying the
-@kbd{-f} option:
-
-@smallexample
-@group
-@b{shell%} kinit -f
-@b{Password for @value{RANDOMUSER1}@@@value{PRIMARYREALM}:} @i{<-- [Type your password here.]}
-@b{shell%}
-@end group
-@end smallexample
-
-@noindent
-Note that @code{kinit} does not tell you that it obtained forwardable
-tickets; you can verify this using the @code{klist} command
-(@pxref{Viewing Your Tickets with klist}).
-
-Normally, your tickets are good for your system's default ticket
-lifetime, which is ten hours on many systems. You can specify a
-different ticket lifetime with the @samp{-l} option. Add the letter
-@samp{s} to the value for seconds, @samp{m} for minutes, @samp{h} for
-hours, or @samp{d} for days.
-@need 1500
-For example, to obtain forwardable tickets for
-@code{@value{RANDOMUSER2}@@@value{SECONDREALM}} that would be good for
-three hours, you would type:
-
-@smallexample
-@group
-@b{shell%} kinit -f -l 3h @value{RANDOMUSER2}@@@value{SECONDREALM}
-@b{Password for @value{RANDOMUSER2}@@@value{SECONDREALM}:} @i{<-- [Type @value{RANDOMUSER2}'s password here.]}
-@b{shell%}
-@end group
-@end smallexample
-
-@noindent
-You cannot mix units; specifying a lifetime of @samp{3h30m} would result
-in an error. Note also that most systems specify a maximum ticket
-lifetime. If you request a longer ticket lifetime, it will be
-automatically truncated to the maximum lifetime.
-
-@node Viewing Your Tickets with klist, Destroying Your Tickets with kdestroy, Obtaining Tickets with kinit, Ticket Management
-@subsection Viewing Your Tickets with klist
-
-The @code{klist} command shows your tickets. When you first obtain
-tickets, you will have only the ticket-granting ticket. (@xref{What is
-a Ticket?}.) The listing would look like this:
-
-@smallexample
-@group
-@b{shell%} klist
-Ticket cache: /tmp/krb5cc_ttypa
-Default principal: @value{RANDOMUSER1}@@@value{PRIMARYREALM}
-
-Valid starting Expires Service principal
-06/07/04 19:49:21 06/08/04 05:49:19 krbtgt/@value{PRIMARYREALM}@@@value{PRIMARYREALM}
-@b{shell%}
-@end group
-@end smallexample
-
-@noindent
-The ticket cache is the location of your ticket file. In the above
-example, this file is named @code{/tmp/krb5cc_ttypa}. The default
-principal is your kerberos @dfn{principal}. (@pxref{What is a Kerberos
-Principal?})
-
-The ``valid starting'' and ``expires'' fields describe the period of
-time during which the ticket is valid. The @dfn{service principal}
-describes each ticket. The ticket-granting ticket has the primary
-@code{krbtgt}, and the instance is the realm name.
-
-@need 2000
-Now, if @value{RANDOMUSER1} connected to the machine
-@code{@value{RANDOMHOST1}.@value{PRIMARYDOMAIN}}, and then typed
-@kbd{klist} again, she would have gotten the following result:
-
-@smallexample
-@group
-@b{shell%} klist
-Ticket cache: /tmp/krb5cc_ttypa
-Default principal: @value{RANDOMUSER1}@@@value{PRIMARYREALM}
-
-Valid starting Expires Service principal
-06/07/04 19:49:21 06/08/04 05:49:19 krbtgt/@value{PRIMARYREALM}@@@value{PRIMARYREALM}
-06/07/04 20:22:30 06/08/04 05:49:19 host/@value{RANDOMHOST1}.@value{PRIMARYDOMAIN}@@@value{PRIMARYREALM}
-@b{shell%}
-@end group
-@end smallexample
-
-@noindent
-Here's what happened: when @value{RANDOMUSER1} used telnet to connect
-to the host @code{@value{RANDOMHOST1}.@value{PRIMARYDOMAIN}}, the telnet
-program presented her ticket-granting ticket to the KDC and requested a
-host ticket for the host
-@code{@value{RANDOMHOST1}.@value{PRIMARYDOMAIN}}. The KDC sent the host
-ticket, which telnet then presented to the host
-@code{@value{RANDOMHOST1}.@value{PRIMARYDOMAIN}}, and she was allowed to
-log in without typing her password.
-
-@need 3000
-Suppose your Kerberos tickets allow you to log into a host in another
-domain, such as @code{@value{RANDOMHOST2}.@value{SECONDDOMAIN}}, which
-is also in another Kerberos realm, @code{@value{SECONDREALM}}. If you
-telnet to this host, you will receive a ticket-granting ticket for the
-realm @code{@value{SECONDREALM}}, plus the new @code{host} ticket for
-@code{@value{RANDOMHOST2}.@value{SECONDDOMAIN}}. @kbd{klist} will now
-show:
-
-@smallexample
-@group
-@b{shell%} klist
-Ticket cache: /tmp/krb5cc_ttypa
-Default principal: @value{RANDOMUSER1}@@@value{PRIMARYREALM}
-
-Valid starting Expires Service principal
-06/07/04 19:49:21 06/08/04 05:49:19 krbtgt/@value{PRIMARYREALM}@@@value{PRIMARYREALM}
-06/07/04 20:22:30 06/08/04 05:49:19 host/@value{RANDOMHOST1}.@value{PRIMARYDOMAIN}@@@value{PRIMARYREALM}
-06/07/04 20:24:18 06/08/04 05:49:19 krbtgt/@value{SECONDREALM}@@@value{PRIMARYREALM}
-06/07/04 20:24:18 06/08/04 05:49:19 host/@value{RANDOMHOST2}.@value{SECONDDOMAIN}@@@value{SECONDREALM}
-@b{shell%}
-@end group
-@end smallexample
-
-You can use the @code{-f} option to view the @dfn{flags} that apply to
-your tickets. The flags are:
-
-@table @b
-@itemx F
-@b{F}orwardable
-@itemx f
-@b{f}orwarded
-@itemx P
-@b{P}roxiable
-@itemx p
-@b{p}roxy
-@itemx D
-post@b{D}ateable
-@itemx d
-post@b{d}ated
-@itemx R
-@b{R}enewable
-@itemx I
-@b{I}nitial
-@itemx i
-@b{i}nvalid
-@itemx H
-@b{H}ardware authenticated
-@itemx A
-pre@b{A}uthenticated
-@itemx T
-@b{T}ransit policy checked
-@itemx O
-@b{O}kay as delegate
-@itemx a
-@b{a}nonymous
-@end table
-
-@need 1500
-Here is a sample listing. In this example, the user @value{RANDOMUSER1}
-obtained her initial tickets (@samp{I}), which are forwardable
-(@samp{F}) and postdated (@samp{d}) but not yet validated (@samp{i}).
-(@xref{kinit Reference}, for more information about postdated tickets.)
-
-@smallexample
-@group
-@b{shell%} klist -f
-@b{Ticket cache: /tmp/krb5cc_320
-Default principal: @value{RANDOMUSER1}@@@value{PRIMARYREALM}
-
-Valid starting Expires Service principal
-31/07/05 19:06:25 31/07/05 19:16:25 krbtgt/@value{PRIMARYREALM}@@@value{PRIMARYREALM}
- Flags: FdiI
-shell%}
-@end group
-@end smallexample
-
-@need 1500
-In the following example, the user @value{RANDOMUSER2}'s tickets were
-forwarded (@samp{f}) to this host from another host. The tickets are
-reforwardable (@samp{F}).
-
-@smallexample
-@group
-@b{shell%} klist -f
-@b{Ticket cache: /tmp/krb5cc_p11795
-Default principal: @value{RANDOMUSER2}@@@value{SECONDREALM}
-
-Valid starting Expires Service principal
-07/31/05 11:52:29 07/31/05 21:11:23 krbtgt/@value{SECONDREALM}@@@value{SECONDREALM}
- Flags: Ff
-07/31/05 12:03:48 07/31/05 21:11:23 host/@value{RANDOMHOST2}.@value{SECONDDOMAIN}@@@value{SECONDREALM}
- Flags: Ff
-shell%}
-@end group
-@end smallexample
-
-@node Destroying Your Tickets with kdestroy, , Viewing Your Tickets with klist, Ticket Management
-@subsection Destroying Your Tickets with kdestroy
-
-Your Kerberos tickets are proof that you are indeed yourself, and
-tickets can be stolen. If this happens, the person who has them can
-masquerade as you until they expire. For this reason, you should
-destroy your Kerberos tickets when you are away from your computer.
-
-@need 1000
-Destroying your tickets is easy. Simply type @kbd{kdestroy}.
-
-@smallexample
-@group
-@b{shell%} kdestroy
-@b{shell%}
-@end group
-@end smallexample
-
-@need 1500
-If @code{kdestroy} fails to destroy your tickets, it will beep and give
-an error message. For example, if @code{kdestroy} can't find any
-tickets to destroy, it will give the following message:
-
-@smallexample
-@group
-@b{shell%} kdestroy
-@b{kdestroy: No credentials cache file found while destroying cache
-shell%}
-@end group
-@end smallexample
-
-@node Password Management, Kerberos V5 Applications, Ticket Management, Kerberos V5 Tutorial
-@section Password Management
-
-Your password is the only way Kerberos has of verifying your identity.
-If someone finds out your password, that person can masquerade as
-you---send email that comes from you, read, edit, or delete your files,
-or log into other hosts as you---and no one will be able to tell the
-difference. For this reason, it is important that you choose a good
-password (@pxref{Password Advice}), and keep it secret. If you need to
-give access to your account to someone else, you can do so through
-Kerberos. (@xref{Granting Access to Your Account}.) You should
-@i{never} tell your password to anyone, including your system
-administrator, for any reason. You should change your password
-frequently, particularly any time you think someone may have found out
-what it is.
-
-@menu
-* Changing Your Password::
-* Password Advice::
-* Granting Access to Your Account::
-@end menu
-
-@node Changing Your Password, Password Advice, Password Management, Password Management
-@subsection Changing Your Password
-
-@need 2500
-To change your Kerberos password, use the @code{kpasswd} command. It
-will ask you for your old password (to prevent someone else from walking
-up to your computer when you're not there and changing your password),
-and then prompt you for the new one twice. (The reason you have to type
-it twice is to make sure you have typed it correctly.) For example,
-user @code{@value{RANDOMUSER2}} would do the following:
-
-@smallexample
-@group
-@b{shell%} kpasswd
-@b{Password for @value{RANDOMUSER2}:} @i{<- Type your old password.}
-@b{Enter new password:} @i{<- Type your new password.}
-@b{Enter it again:} @i{<- Type the new password again.}
-@b{Password changed.}
-@b{shell%}
-@end group
-@end smallexample
-
-@need 1800
-If @value{RANDOMUSER2} typed the incorrect old password, he would get
-the following message:
-
-@smallexample
-@group
-@b{shell%} kpasswd
-@b{Password for @value{RANDOMUSER2}:} @i{<- Type the incorrect old password.}
-@b{kpasswd: Password incorrect while getting initial ticket
-shell%}
-@end group
-@end smallexample
-
-@need 2500
-If you make a mistake and don't type the new password the same way
-twice, @code{kpasswd} will ask you to try again:
-
-@smallexample
-@group
-@b{shell%} kpasswd
-@b{Password for @value{RANDOMUSER2}:} @i{<- Type the old password.}
-@b{Enter new password:} @i{<- Type the new password.}
-@b{Enter it again:} @i{<- Type a different new password.}
-@b{kpasswd: Password mismatch while reading password
-shell%}
-@end group
-@end smallexample
-
-Once you change your password, it takes some time for the change to
-propagate through the system. Depending on how your system is set up,
-this might be anywhere from a few minutes to an hour or more. If you
-need to get new Kerberos tickets shortly after changing your password,
-try the new password. If the new password doesn't work, try again using
-the old one.
-
-@node Password Advice, Granting Access to Your Account, Changing Your Password, Password Management
-@subsection Password Advice
-
-Your password can include almost any character you can type (except
-control keys and the ``enter'' key). A good password is one you can
-remember, but that no one else can easily guess. Examples of @i{bad}
-passwords are words that can be found in a dictionary, any common or
-popular name, especially a famous person (or cartoon character), your
-name or username in any form (@i{e.g.}, forward, backward, repeated
-twice, @i{etc.}), your spouse's, child's, or pet's name, your birth
-date, your social security number, and any sample password that appears
-in this (or any other) manual.
-
-@need 2200
-@value{COMPANY} recommends that your password be at least 6 characters
-long, and contain UPPER- and lower-case letters, numbers, and/or
-punctuation marks. Some passwords that would be good if they weren't
-listed in this manual include:
-
-@itemize @bullet
-@item some initials, like ``GykoR-66.'' for ``Get your kicks on Route
-66.''
-
-@item an easy-to-pronounce nonsense word, like ``slaRooBey'' or
-``krang-its''
-
-@item a misspelled phrase, like ``2HotPeetzas!'' or ``ItzAGurl!!!''
-@end itemize
-
-@noindent Note: don't actually use any of the above passwords. They're
-only meant to show you how to make up a good password. Passwords that
-appear in a manual are the first ones intruders will try.
-
-@need 3800
-@value{PRODUCT} allows your system administrators to automatically
-reject bad passwords, based on certain criteria, such as a password
-dictionary or a minimum length. For example, if the user
-@code{@value{RANDOMUSER1}}, who had a policy "strict" that required a
-minimum of 8 characaters, chose a password that was less than 8
-characters, Kerberos would give an error message like the following:
-
-@smallexample
-@group
-@b{shell%} kpasswd
-@b{Password for @value{RANDOMUSER1}:} @i{<- Type your old password here.}
-
-@value{RANDOMUSER1}'s password is controlled by the policy strict, which
-requires a minimum of 8 characters from at least 3 classes (the five classes
-are lowercase, uppercase, numbers, punctuation, and all other characters).
-
-@b{Enter new password:} @i{<- Type an insecure new password.}
-@b{Enter it again:} @i{<- Type it again.}
-
-kpasswd: Password is too short while attempting to change password.
-Please choose another password.
-
-@b{Enter new password:} @i{<- Type a good password here.}
-@b{Enter it again:} @i{<- Type it again.}
-@b{Password changed.
-shell%}
-@end group
-@end smallexample
-
-@noindent Your system administrators can choose the message that is
-displayed if you choose a bad password, so the message you see may be
-different from the above example.
-
-@node Granting Access to Your Account, , Password Advice, Password Management
-@subsection Granting Access to Your Account
-
-@need 1800
-If you need to give someone access to log into your account, you can do
-so through Kerberos, without telling the person your password. Simply
-create a file called @code{.k5login} in your home directory. This file
-should contain the Kerberos principal (@xref{What is a Kerberos
-Principal?}.) of each person to whom you wish to give access. Each
-principal must be on a separate line. Here is a sample @code{.k5login}
-file:
-
-@smallexample
-@group
-@value{RANDOMUSER1}@@@value{PRIMARYREALM}
-@value{RANDOMUSER2}@@@value{SECONDREALM}
-@end group
-@end smallexample
-
-@noindent This file would allow the users @code{@value{RANDOMUSER1}} and
-@code{@value{RANDOMUSER2}} to use your user ID, provided that they had
-Kerberos tickets in their respective realms. If you will be logging
-into other hosts across a network, you will want to include your own
-Kerberos principal in your @code{.k5login} file on each of these hosts.
-
-@need 1000
-Using a @code{.k5login} file is much safer than giving out your
-password, because:
-
-@itemize @bullet
-@item You can take access away any time simply by removing the principal
-from your @code{.k5login} file.
-
-@item Although the user has full access to your account on one
-particular host (or set of hosts if your @code{.k5login} file is shared,
-@i{e.g.}, over NFS), that user does not inherit your network privileges.
-
-@item Kerberos keeps a log of who obtains tickets, so a system
-administrator could find out, if necessary, who was capable of using
-your user ID at a particular time.
-@end itemize
-
-One common application is to have a @code{.k5login} file in
-@code{root}'s home directory, giving root access to that machine to the
-Kerberos principals listed. This allows system administrators to allow
-users to become root locally, or to log in remotely as @code{root},
-without their having to give out the root password, and without anyone
-having to type the root password over the network.
-
-@node Kerberos V5 Applications, , Password Management, Kerberos V5 Tutorial
-@section Kerberos V5 Applications
-
-@value{PRODUCT} is a @dfn{single-sign-on} system. This means that you
-only have to type your password once, and the @value{PRODUCT} programs
-do the authenticating (and optionally encrypting) for you. The way this
-works is that Kerberos has been built into each of a suite of network
-programs. For example, when you use a @value{PRODUCT} program to
-connect to a remote host, the program, the KDC, and the remote host
-perform a set of rapid negotiations. When these negotiations are
-completed, your program has proven your identity on your behalf to the
-remote host, and the remote host has granted you access, all in the
-space of a few seconds.
-
-The @value{PRODUCT} applications are versions of existing UNIX network
-programs with the Kerberos features added.
-
-@menu
-* Overview of Additional Features::
-* telnet::
-* rlogin::
-* FTP::
-* rsh::
-* rcp::
-* ksu::
-@end menu
-
-@node Overview of Additional Features, telnet, Kerberos V5 Applications, Kerberos V5 Applications
-@subsection Overview of Additional Features
-
-The @value{PRODUCT} @dfn{network programs} are those programs that
-connect to another host somewhere on the internet. These programs
-include @code{rlogin}, @code{telnet}, @code{ftp}, @code{rsh},
-@code{rcp}, and @code{ksu}. These programs have all of the original
-features of the corresponding non-Kerberos @code{rlogin}, @code{telnet},
-@code{ftp}, @code{rsh}, @code{rcp}, and @code{su} programs, plus
-additional features that transparently use your Kerberos tickets for
-negotiating authentication and optional encryption with the remote host.
-In most cases, all you'll notice is that you no longer have to type your
-password, because Kerberos has already proven your identity.
-
-The @value{PRODUCT} network programs allow you the options of forwarding
-your tickets to the remote host (if you obtained forwardable tickets
-with the @code{kinit} program; @pxref{Obtaining Tickets with kinit}), and
-encrypting data transmitted between you and the remote host.
-
-This section of the tutorial assumes you are familiar with the
-non-Kerberos versions of these programs, and highlights the Kerberos
-functions added in the @value{PRODUCT} package.
-
-@node telnet, rlogin, Overview of Additional Features, Kerberos V5 Applications
-@subsection telnet
-
-The @value{PRODUCT} @code{telnet} command works exactly like the
-standard UNIX telnet program, with the following Kerberos options added:
-
-@table @kbd
-@itemx -f
-forwards a copy of your tickets to the remote host.
-
-@itemx -F
-forwards a copy of your tickets to the remote host, and marks them
-re-forwardable from the remote host.
-
-@itemx -k @i{realm}
-requests tickets for the remote host in the specified realm, instead of
-determining the realm itself.
-
-@itemx -K
-uses your tickets to authenticate to the remote host, but does not log
-you in.
-
-@itemx -a
-attempt automatic login using your tickets. @code{telnet} will assume
-the same username unless you explicitly specify another.
-
-@itemx -x
-turns on encryption.
-
-@end table
-
-@need 4000
-For example, if @code{@value{RANDOMUSER2}} wanted to use the standard
-UNIX telnet to connect to the machine
-@code{@value{RANDOMHOST1}.@value{PRIMARYDOMAIN}}, he would type:
-
-@smallexample
-@group
-@b{shell%} telnet @value{RANDOMHOST1}.@value{SECONDDOMAIN}
-@b{Trying 128.0.0.5 ...
-Connected to @value{RANDOMHOST1}.@value{SECONDDOMAIN}.
-Escape character is '^]'.
-
-NetBSD/i386 (daffodil) (ttyp3)
-
-login:} @value{RANDOMUSER2}
-@b{Password:} @i{<- @value{RANDOMUSER2} types his password here}
-@b{Last login: Fri Jun 21 17:13:11 from @value{RANDOMHOST2}.@value{PRIMARYDOMAIN}
-Copyright (c) 1980, 1983, 1986, 1988, 1990, 1991, 1993, 1994
- The Regents of the University of California. All rights reserved.
-
-NetBSD 1.1: Tue May 21 00:31:42 EDT 1996
-
-Welcome to NetBSD!
-shell%}
-@end group
-@end smallexample
-
-@noindent Note that the machine
-@code{@value{RANDOMHOST1}.@value{SECONDDOMAIN}} asked for
-@code{@value{RANDOMUSER2}}'s password. When he typed it, his password
-was sent over the network unencrypted. If an intruder were watching
-network traffic at the time, that intruder would know
-@code{@value{RANDOMUSER2}}'s password.
-
-@need 4000
-If, on the other hand, @code{@value{RANDOMUSER1}} wanted to use the
-@value{PRODUCT} telnet to connect to the machine
-@code{@value{RANDOMHOST2}.@value{PRIMARYDOMAIN}}, she could forward a
-copy of her tickets, request an encrypted session, and log on as herself
-as follows:
-
-@smallexample
-@group
-@b{shell%} telnet -a -f -x @value{RANDOMHOST2}.@value{PRIMARYDOMAIN}
-@b{Trying 128.0.0.5...
-Connected to @value{RANDOMHOST2}.@value{PRIMARYDOMAIN}.
-Escape character is '^]'.
-[ Kerberos V5 accepts you as ``@value{RANDOMUSER1}@@@value{PRIMARYDOMAIN}'' ]
-[ Kerberos V5 accepted forwarded credentials ]
-What you type is protected by encryption.
-Last login: Tue Jul 30 18:47:44 from @value{RANDOMHOST1}.@value{SECONDDOMAIN}
-Athena Server (sun4) Version 9.1.11 Tue Jul 30 14:40:08 EDT 2002
-
-shell%}
-@end group
-@end smallexample
-
-@noindent Note that @code{@value{RANDOMUSER1}}'s machine used Kerberos
-to authenticate her to @code{@value{RANDOMHOST2}.@value{PRIMARYDOMAIN}},
-and logged her in automatically as herself. She had an encrypted
-session, a copy of her tickets already waiting for her, and she never
-typed her password.
-
-If you forwarded your Kerberos tickets, @code{telnet} automatically
-destroys them when it exits. The full set of options to @value{PRODUCT}
-@code{telnet} are discussed in the Reference section of this manual.
-(@pxref{telnet Reference})
-
-@need 2000
-@node rlogin, FTP, telnet, Kerberos V5 Applications
-@subsection rlogin
-
-@need 1000
-The @value{PRODUCT} @code{rlogin} command works exactly like the
-standard UNIX rlogin program, with the following Kerberos options added:
-
-@table @kbd
-@itemx -f
-forwards a copy of your tickets to the remote host.
-
-@itemx -F
-forwards a copy of your tickets to the remote host, and marks them
-re-forwardable from the remote host.
-
-@itemx -k @i{realm}
-requests tickets for the remote host in the specified realm, instead of
-determining the realm itself.
-
-@itemx -x
-encrypts the input and output data streams (the username is sent unencrypted)
-
-@end table
-
-@need 3000
-For example, if @code{@value{RANDOMUSER2}} wanted to use the standard
-UNIX rlogin to connect to the machine
-@code{@value{RANDOMHOST1}.@value{SECONDDOMAIN}}, he would type:
-
-@smallexample
-@group
-@b{shell%} rlogin @value{RANDOMHOST1}.@value{SECONDDOMAIN} -l @value{RANDOMUSER2}
-@b{Password:} @i{<- @value{RANDOMUSER2} types his password here}
-@b{Last login: Fri Jun 21 10:36:32 from :0.0
-Copyright (c) 1980, 1983, 1986, 1988, 1990, 1991, 1993, 1994
- The Regents of the University of California. All rights reserved.
-
-NetBSD 1.1: Tue May 21 00:31:42 EDT 1996
-
-Welcome to NetBSD!
-shell%}
-@end group
-@end smallexample
-
-@noindent Note that the machine
-@code{@value{RANDOMHOST1}.@value{SECONDDOMAIN}} asked for
-@code{@value{RANDOMUSER2}}'s password. When he typed it, his password
-was sent over the network unencrypted. If an intruder were watching
-network traffic at the time, that intruder would know
-@code{@value{RANDOMUSER2}}'s password.
-
-@need 4000
-If, on the other hand, @code{@value{RANDOMUSER1}} wanted to use
-@value{PRODUCT} rlogin to connect to the machine
-@code{@value{RANDOMHOST2}.@value{PRIMARYDOMAIN}}, she could forward a
-copy of her tickets, mark them as not forwardable from the remote host,
-and request an encrypted session as follows:
-
-@smallexample
-@group
-@b{shell%} rlogin @value{RANDOMHOST2}.@value{PRIMARYDOMAIN} -f -x
-@b{This rlogin session is using DES encryption for all data transmissions.
-Last login: Thu Jun 20 16:20:50 from @value{RANDOMHOST1}
-Athena Server (sun4) Version 9.1.11 Tue Jul 30 14:40:08 EDT 2002
-shell%}
-@end group
-@end smallexample
-
-@noindent Note that @code{@value{RANDOMUSER1}}'s machine used Kerberos
-to authenticate her to @code{@value{RANDOMHOST2}.@value{PRIMARYDOMAIN}},
-and logged her in automatically as herself. She had an encrypted
-session, a copy of her tickets were waiting for her, and she never typed
-her password.
-
-If you forwarded your Kerberos tickets, @code{rlogin} automatically
-destroys them when it exits. The full set of options to @value{PRODUCT}
-@code{rlogin} are discussed in the Reference section of this manual.
-(@pxref{rlogin Reference})
-
-@node FTP, rsh, rlogin, Kerberos V5 Applications
-@subsection FTP
-
-@need 1000
-The @value{PRODUCT} @code{FTP} program works exactly like the standard
-UNIX FTP program, with the following Kerberos features added:
-
-@table @kbd
-@itemx -k @i{realm}
-requests tickets for the remote host in the specified realm, instead of
-determining the realm itself.
-
-@itemx -f
-requests that your tickets be forwarded to the remote host. The
-@kbd{-f} argument must be the last argument on the command line.
-
-@itemx protect @i{level}
-(issued at the @code{ftp>} prompt) sets the protection level. ``Clear''
-is no protection; ``safe'' ensures data integrity by verifying the
-checksum, and ``private'' encrypts the data. Encryption also ensures
-data integrity.
-@end table
-
-@need 5000
-For example, suppose @code{@value{RANDOMUSER1}} wants to get her
-@code{RMAIL} file from the directory @code{~@value{RANDOMUSER1}/Mail},
-on the host @code{@value{RANDOMHOST1}.@value{PRIMARYDOMAIN}}. She wants
-to encrypt the file transfer. The exchange would look like the
-following:
-
-@smallexample
-@group
-@b{shell%} ftp @value{RANDOMHOST1}.@value{PRIMARYDOMAIN}
-Connected to @value{RANDOMHOST1}.@value{PRIMARYDOMAIN}.
-220 @value{RANDOMHOST1}.@value{PRIMARYDOMAIN} FTP server (Version 5.60) ready.
-334 Using authentication type GSSAPI; ADAT must follow
-GSSAPI accepted as authentication type
-GSSAPI authentication succeeded
-200 Data channel protection level set to private.
-Name (@value{RANDOMHOST1}.@value{PRIMARYDOMAIN}:@value{RANDOMUSER1}):
-232 GSSAPI user @value{RANDOMUSER1}@@@value{PRIMARYREALM} is authorized as @value{RANDOMUSER1}
-230 User @value{RANDOMUSER1} logged in.
-Remote system type is UNIX.
-Using binary mode to transfer files.
-ftp> protect private
-200 Protection level set to Private.
-ftp> cd ~@value{RANDOMUSER1}/MAIL
-250 CWD command successful.
-ftp> get RMAIL
-227 Entering Passive Mode (128,0,0,5,16,49)
-150 Opening BINARY mode data connection for RMAIL (361662 bytes).
-226 Transfer complete.
-361662 bytes received in 2.5 seconds (1.4e+02 Kbytes/s)
-ftp> quit
-@b{shell%}
-@end group
-@end smallexample
-
-The full set of options to @value{PRODUCT} @code{FTP} are discussed
-in the Reference section of this manual. (@pxref{FTP Reference})
-
-@node rsh, rcp, FTP, Kerberos V5 Applications
-@subsection rsh
-
-The @value{PRODUCT} @code{rsh} program works exactly like the standard
-UNIX rlogin program, with the following Kerberos features added:
-
-@table @kbd
-@itemx -f
-forwards a copy of your tickets to the remote host.
-
-@itemx -F
-forwards a copy of your tickets to the remote host, and marks them
-re-forwardable from the remote host.
-
-@itemx -k @i{realm}
-requests tickets for the remote host in the specified realm, instead of
-determining the realm itself.
-
-@itemx -x
-encrypts the input and output data streams (the command line is not encrypted)
-
-@end table
-
-@need 1800
-For example, if your Kerberos tickets allowed you to run programs on the
-host @* @code{@value{RANDOMHOST2}@@@value{SECONDDOMAIN}} as root, you could
-run the @samp{date} program as follows:
-
-@smallexample
-@group
-@b{shell%} rsh @value{RANDOMHOST2}.@value{SECONDDOMAIN} -l root -x date
-@b{This rsh session is using DES encryption for all data transmissions.
-Tue Jul 30 19:34:21 EDT 2002
-shell%}
-@end group
-@end smallexample
-
-If you forwarded your Kerberos tickets, @code{rsh} automatically
-destroys them when it exits. The full set of options to @value{PRODUCT}
-@code{rsh} are discussed in the Reference section of this manual.
-(@pxref{rsh Reference})
-
-@node rcp, ksu, rsh, Kerberos V5 Applications
-@subsection rcp
-
-@need 1000
-The @value{PRODUCT} @code{rcp} program works exactly like the standard
-UNIX rcp program, with the following Kerberos features added:
-
-@table @kbd
-@itemx -k @i{realm}
-requests tickets for the remote host in the specified realm, instead of
-determining the realm itself.
-
-@itemx -x
-turns on encryption.
-@end table
-
-
-@need 1500
-For example, if you wanted to copy the file @code{/etc/motd} from the
-host @code{@value{RANDOMHOST1}.@value{PRIMARYDOMAIN}} into the current
-directory, via an encrypted connection, you would simply type:
-
-@smallexample
-@b{shell%} rcp -x @value{RANDOMHOST1}.@value{PRIMARYDOMAIN}:/etc/motd .
-@end smallexample
-
-The @kbd{rcp} program negotiates authentication and encryption
-transparently. The full set of options to @value{PRODUCT} @code{rcp}
-are discussed in the Reference section of this manual. (@pxref{rcp
-Reference})
-
-@node ksu, , rcp, Kerberos V5 Applications
-@subsection ksu
-
-The @value{PRODUCT} @code{ksu} program replaces the standard UNIX su
-program. @code{ksu} first authenticates you to Kerberos. Depending on
-the configuration of your system, @code{ksu} may ask for your Kerberos
-password if authentication fails. @emph{Note that you should never type
-your password if you are remotely logged in using an unencrypted
-connection.}
-
-Once @code{ksu} has authenticated you, if your Kerberos principal
-appears in the target's @code{.k5login} file (@pxref{Granting Access to
-Your Account}) or in the target's @code{.k5users} file (see below), it
-switches your user ID to the target user ID.
-
-@need 2000
-For example, @code{@value{RANDOMUSER2}} has put
-@code{@value{RANDOMUSER1}}'s Kerberos principal in his @code{.k5login}
-file. If @code{@value{RANDOMUSER1}} uses @code{ksu} to become
-@code{@value{RANDOMUSER2}}, the exchange would look like this. (To
-differentiate between the two shells, @code{@value{RANDOMUSER1}}'s
-prompt is represented as @code{@value{RANDOMUSER1}%} and
-@code{@value{RANDOMUSER2}}'s prompt is represented as
-@code{@value{RANDOMUSER2}%}.)
-
-@smallexample
-@group
-@b{@value{RANDOMUSER1}%} ksu @value{RANDOMUSER2}
-@b{Account @value{RANDOMUSER2}: authorization for @value{RANDOMUSER1}@@@value{PRIMARYREALM} successful
-Changing uid to @value{RANDOMUSER2} (3382)
-@value{RANDOMUSER2}%}
-@end group
-@end smallexample
-
-@noindent
-Note that the new shell has a copy of @code{@value{RANDOMUSER1}}'s
-tickets. The ticket filename contains @code{@value{RANDOMUSER2}}'s UID
-with @samp{.1} appended to it:
-
-@smallexample
-@group
-@b{@value{RANDOMUSER2}%} klist
-@b{Ticket cache: /tmp/krb5cc_3382.1
-Default principal: @value{RANDOMUSER1}@@@value{PRIMARYREALM}
-
-Valid starting Expires Service principal
-07/31/04 21:53:01 08/01/04 07:52:53 krbtgt/@value{PRIMARYREALM}@@@value{PRIMARYREALM}
-07/31/04 21:53:39 08/01/04 07:52:53 host/@value{RANDOMHOST1}.@value{PRIMARYDOMAIN}@@@value{PRIMARYREALM}
-@value{RANDOMUSER2}%}
-@end group
-@end smallexample
-
-@need 2500
-If @code{@value{RANDOMUSER1}} had not appeared in
-@code{@value{RANDOMUSER2}}'s @code{.k5login} file (and the system was
-configured to ask for a password), the exchange would have looked like
-this (assuming @code{@value{RANDOMUSER2}} has taken appropriate
-precautions in protecting his password):
-
-@smallexample
-@group
-@b{@value{RANDOMUSER1}%} ksu @value{RANDOMUSER2}
-@b{WARNING: Your password may be exposed if you enter it here and are logged
- in remotely using an unsecure (non-encrypted) channel.
-Kerberos password for @value{RANDOMUSER2}@@@value{PRIMARYREALM}:} @i{<- @code{@value{RANDOMUSER1}} types the wrong password here.}
-@b{ksu: Password incorrect
-Authentication failed.
-@value{RANDOMUSER1}%}
-@end group
-@end smallexample
-
-Now, suppose @code{@value{RANDOMUSER2}} did not want to give
-@code{@value{RANDOMUSER1}} full access to his account, but wanted to
-give her permission to list his files and use the "more" command to view
-them. He could create a @code{.k5users} file giving her permission to
-run only those specific commands.
-
-@need 3500
-The @code{.k5users} file is like the @code{.k5login} file, except that
-each principal is optionally followed by a list of commands. @code{ksu}
-will let those principals execute only the commands listed, using the
-@kbd{-e} option. @code{@value{RANDOMUSER2}}'s @code{.k5users} file
-might look like the following:
-
-@smallexample
-@group
-@value{RANDOMUSER1}@@@value{PRIMARYREALM} /bin/ls /usr/bin/more
-@value{ADMINUSER}@@@value{PRIMARYREALM} /bin/ls
-@value{ADMINUSER}/admin@@@value{PRIMARYREALM} *
-@value{RANDOMUSER2}@@@value{SECONDREALM}
-@end group
-@end smallexample
-
-@noindent The above @code{.k5users} file would let
-@code{@value{RANDOMUSER1}} run only the commands @code{/bin/ls} and
-@code{/usr/bin/more}. It would let @code{@value{ADMINUSER}} run only
-the command @code{/bin/ls} if he had regular tickets, but if he had
-tickets for his @code{admin} instance,
-@code{@value{ADMINUSER}/admin@@@value{PRIMARYREALM}}, he would be able
-to execute any command. The last line gives @code{@value{RANDOMUSER2}}
-in the realm @value{SECONDREALM} permission to execute any command.
-(@i{I.e.}, having only a Kerberos principal on a line is equivalent to
-giving that principal permission to execute @code{*}.) This is so that
-@value{RANDOMUSER2} can allow himself to execute commands when he logs
-in, using Kerberos, from a machine in the realm @value{SECONDREALM}.
-
-@need 2500
-Then, when @code{@value{RANDOMUSER1}} wanted to list his home directory,
-she would type:
-
-@smallexample
-@group
-@b{@value{RANDOMUSER1}%} ksu @value{RANDOMUSER2} -e ls ~@value{RANDOMUSER2}
-@b{Authenticated @value{RANDOMUSER1}@@@value{PRIMARYREALM}
-Account @value{RANDOMUSER2}: authorization for @value{RANDOMUSER1}@@@value{PRIMARYREALM} for execution of
- /bin/ls successful
-Changing uid to @value{RANDOMUSER2} (3382)
-Mail News Personal misc bin
-@value{RANDOMUSER1}%}
-@end group
-@end smallexample
-
-@noindent If @code{@value{RANDOMUSER1}} had tried to give a different
-command to @code{ksu}, it would have prompted for a password as with the
-previous example.
-
-Note that unless the @code{.k5users} file gives the target permission to
-run any command, the user must use @code{ksu} with the @kbd{-e}
-@i{command} option.
-
-@need 1000
-The @code{ksu} options you are most likely to use are:
-
-@table @kbd
-@itemx -n @i{principal}
-specifies which Kerberos principal you want to use for @code{ksu}.
-(@i{e.g.}, the user @code{@value{ADMINUSER}} might want to use his
-@code{admin} instance. @xref{What is a Ticket?}.)
-
-@itemx -c
-specifies the location of your Kerberos credentials cache (ticket file).
-
-@itemx -k
-tells @code{ksu} not to destroy your Kerberos tickets when @code{ksu} is
-finished.
-
-@itemx -f
-requests forwardable tickets. (@xref{Obtaining Tickets with kinit}.) This
-is only applicable if @code{ksu} needs to obtain tickets.
-
-@itemx -l @i{lifetime}
-sets the ticket lifetime. (@xref{Obtaining Tickets with kinit}.) This is
-only applicable if @code{ksu} needs to obtain tickets.
-
-@itemx -z
-tells @code{ksu} to copy your Kerberos tickets only if the UID you are
-switching is the same as the Kerberos primary (either yours or the one
-specified by the @kbd{-n} option).
-
-@itemx -Z
-tells @code{ksu} not to copy any Kerberos tickets to the new UID.
-
-@itemx -e @i{command}
-tells @code{ksu} to execute @i{command} and then exit. See the
-description of the @code{.k5users} file above.
-
-@itemx -a @i{text}
-(at the end of the command line) tells @code{ksu} to pass everything
-after @samp{-a} to the target shell.
-@end table
-
-The full set of options to @value{PRODUCT} @code{ksu} are discussed
-in the Reference section of this manual. (@pxref{ksu Reference})
-
-@node Kerberos V5 Reference, Kerberos Glossary, Kerberos V5 Tutorial, Top
-@chapter Kerberos V5 Reference
-
-This section will include copies of the manual pages for the
-@value{PRODUCT} client programs. You can read the manual entry for any
-command by typing @code{man} @i{command}, where @i{command} is the name
-of the command for which you want to read the manual entry. For
-example, to read the @code{kinit} manual entry, you would type:
-
-@smallexample
-@b{shell%} man kinit
-@end smallexample
-
-Note: To be able to view the @value{PRODUCT} manual pages on line, you
-may need to add the directory @code{@value{ROOTDIR}/man} to your MANPATH
-environment variable. (Remember to replace @code{@value{ROOTDIR}} with
-the top-level directory in which @value{PRODUCT} is installed.) For
-example, if you had the the following line in your @code{.login}
-file@footnote{The MANPATH variable may be specified in a different
-initialization file, depending on your operating system. Some of the
-files in which you might specify environment variables include
-@code{.login}, @code{.profile}, or @code{.cshrc}.}:
-
-@smallexample
-setenv MANPATH /usr/local/man:/usr/man
-@end smallexample
-
-@noindent
-and the @value{PRODUCT} man pages were in the directory
-@code{/usr/@value{LCPRODUCT}/man}, you would change the line to the following:
-
-@smallexample
-setenv MANPATH /usr/@value{LCPRODUCT}/man:/usr/local/man:/usr/man
-@end smallexample
-
-@ifinfo
-Note to info users: the manual pages are not available within this info
-tree. You can read them from emacs with the command:
-
-@smallexample
-M-x manual-entry @emph{command}
-@end smallexample
-@end ifinfo
-
-@page
-
-@menu
-* kinit Reference::
-* klist Reference::
-* ksu Reference::
-* kdestroy Reference::
-* kpasswd Reference::
-* telnet Reference::
-* FTP Reference::
-* rlogin Reference::
-* rsh Reference::
-* rcp Reference::
-@end menu
-
-@node kinit Reference, klist Reference, Kerberos V5 Reference, Kerberos V5 Reference
-@section kinit Reference
-
-@iftex
-@special{psfile=kinit1.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{kinit}}
-@page
-
-@special{psfile=kinit2.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{kinit}}
-@page
-@end iftex
-
-@ifinfo
-Type @kbd{M-x manual-entry kinit} to read this manual page.
-@end ifinfo
-
-@ifhtml
-@html
-<a href="kinit.html"> kinit manpage</a>
-@end html
-@end ifhtml
-
-@node klist Reference, ksu Reference, kinit Reference, Kerberos V5 Reference
-@section klist Reference
-
-@iftex
-@special{psfile=klist1.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{klist}}
-@page
-@end iftex
-
-@iftex
-@special{psfile=klist2.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{klist}}
-@page
-@end iftex
-
-@ifinfo
-Type @kbd{M-x manual-entry klist} to read this manual page.
-@end ifinfo
-
-@ifhtml
-@html
-<a href="klist.html"> klist manpage</a>
-@end html
-@end ifhtml
-
-@node ksu Reference, kdestroy Reference, klist Reference, Kerberos V5 Reference
-@section ksu Reference
-
-@iftex
-@special{psfile=ksu1.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{ksu}}
-@page
-
-@special{psfile=ksu2.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{ksu}}
-@page
-
-@special{psfile=ksu3.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{ksu}}
-@page
-
-@special{psfile=ksu4.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{ksu}}
-@page
-
-@special{psfile=ksu5.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{ksu}}
-@page
-@end iftex
-
-@ifinfo
-Type @kbd{M-x manual-entry ksu} to read this manual page.
-@end ifinfo
-
-@ifhtml
-@html
-<a href="ksu.html"> ksu manpage</a>
-@end html
-@end ifhtml
-
-@node kdestroy Reference, kpasswd Reference, ksu Reference, Kerberos V5 Reference
-@section kdestroy Reference
-
-@iftex
-@special{psfile=kdestroy1.ps voffset=-700 hoffset=-60}
-@centerline{Reference Manual for @code{kdestroy}}
-@page
-@end iftex
-
-@ifinfo
-Type @kbd{M-x manual-entry kdestroy} to read this manual page.
-@end ifinfo
-
-@ifhtml
-@html
-<a href="kdestroy.html"> kdestroy manpage</a>
-@end html
-@end ifhtml
-
-@node kpasswd Reference, telnet Reference, kdestroy Reference, Kerberos V5 Reference
-@section kpasswd Reference
-
-@iftex
-@special{psfile=kpasswd1.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{kpasswd}}
-@page
-@end iftex
-
-@ifinfo
-Type @kbd{M-x manual-entry kpasswd} to read this manual page.
-@end ifinfo
-
-@ifhtml
-@html
-<a href="kpasswd.html"> kpasswd manpage</a>
-@end html
-@end ifhtml
-
-@node telnet Reference, FTP Reference, kpasswd Reference, Kerberos V5 Reference
-@section telnet Reference
-
-@iftex
-@special{psfile=telnet1.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{telnet}}
-@page
-
-@special{psfile=telnet2.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{telnet}}
-@page
-
-@special{psfile=telnet3.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{telnet}}
-@page
-
-@special{psfile=telnet4.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{telnet}}
-@page
-
-@special{psfile=telnet5.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{telnet}}
-@page
-
-@special{psfile=telnet6.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{telnet}}
-@page
-
-@special{psfile=telnet7.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{telnet}}
-@page
-
-@special{psfile=telnet8.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{telnet}}
-@page
-
-@special{psfile=telnet9.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{telnet}}
-@page
-@end iftex
-
-@ifinfo
-Type @kbd{M-x manual-entry telnet} to read this manual page.
-@end ifinfo
-
-@ifhtml
-@html
-<a href="telnet.html"> telnet manpage</a>
-@end html
-@end ifhtml
-
-@node FTP Reference, rlogin Reference, telnet Reference, Kerberos V5 Reference
-@section FTP Reference
-
-@iftex
-@special{psfile=ftp1.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{FTP}}
-@page
-
-@special{psfile=ftp2.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{FTP}}
-@page
-
-@special{psfile=ftp3.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{FTP}}
-@page
-
-@special{psfile=ftp4.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{FTP}}
-@page
-
-@special{psfile=ftp5.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{FTP}}
-@page
-
-@special{psfile=ftp6.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{FTP}}
-@page
-
-@special{psfile=ftp7.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{FTP}}
-@page
-
-@special{psfile=ftp8.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{FTP}}
-@page
-
-@special{psfile=ftp9.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{FTP}}
-@page
-@end iftex
-
-@ifinfo
-Type @kbd{M-x manual-entry FTP} to read this manual page.
-@end ifinfo
-
-@ifhtml
-@html
-<a href="ftp.html"> ftp manpage</a>
-@end html
-@end ifhtml
-
-@node rlogin Reference, rsh Reference, FTP Reference, Kerberos V5 Reference
-@section rlogin Reference
-
-@iftex
-@special{psfile=rlogin1.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{rlogin}}
-@page
-
-@special{psfile=rlogin2.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{rlogin}}
-@page
-@end iftex
-
-@ifinfo
-Type @kbd{M-x manual-entry rlogin} to read this manual page.
-@end ifinfo
-
-@ifhtml
-@html
-<a href="rlogin.html"> rlogin manpage</a>
-@end html
-@end ifhtml
-
-@node rsh Reference, rcp Reference, rlogin Reference, Kerberos V5 Reference
-@section rsh Reference
-
-@iftex
-@special{psfile=rsh1.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{rsh}}
-@page
-
-@special{psfile=rsh2.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{rsh}}
-@page
-@end iftex
-
-@ifinfo
-Type @kbd{M-x manual-entry rsh} to read this manual page.
-@end ifinfo
-
-@ifhtml
-@html
-<a href="rsh.html"> rsh manpage</a>
-@end html
-@end ifhtml
-
-@node rcp Reference, , rsh Reference, Kerberos V5 Reference
-@section rcp Reference
-
-@iftex
-@special{psfile=rcp1.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{rcp}}
-@page
-@end iftex
-
-@iftex
-@special{psfile=rcp2.ps voffset=-700 hoffset=-40}
-@centerline{Reference Manual for @code{rcp}}
-@page
-@end iftex
-
-@ifinfo
-Type @kbd{M-x manual-entry rcp} to read this manual page.
-@end ifinfo
-
-@ifhtml
-@html
-<a href="rcp.html"> rcp manpage</a>
-@end html
-@end ifhtml
-
-@node Kerberos Glossary, Copyright, Kerberos V5 Reference, Top
-@appendix Kerberos Glossary
-
-@include glossary.texinfo
-
-@node Copyright, , Kerberos Glossary, Top
-@appendix Copyright
-
-@include copyright.texinfo
-
-@contents
-@bye