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diff --git a/docs/docbook/faq/errors.sgml b/docs/docbook/faq/errors.sgml new file mode 100644 index 0000000000..2f378a3688 --- /dev/null +++ b/docs/docbook/faq/errors.sgml @@ -0,0 +1,170 @@ +<chapter id="errors"> + +<title>Common errors</title> + +<sect1> +<title>Not listening for calling name</title> + +<para> +<programlisting> +Session request failed (131,129) with myname=HOBBES destname=CALVIN +Not listening for calling name +</programlisting> +</para> + +<para> +If you get this when talking to a Samba box then it means that your +global "hosts allow" or "hosts deny" settings are causing the Samba +server to refuse the connection. +</para> + +<para> +Look carefully at your "hosts allow" and "hosts deny" lines in the +global section of smb.conf. +</para> + +<para> +It can also be a problem with reverse DNS lookups not functioning +correctly, leading to the remote host identity not being able to +be confirmed, but that is less likely. +</para> +</sect1> + +<sect1> +<title>System Error 1240</title> + +<para> +System error 1240 means that the client is refusing to talk +to a non-encrypting server. Microsoft changed WinNT in service +pack 3 to refuse to connect to servers that do not support +SMB password encryption. +</para> + +<para>There are two main solutions: +<simplelist> +<member>enable SMB password encryption in Samba. See the encryption part of +the samba HOWTO Collection</member> + +<member>disable this new behaviour in NT. See the section about +Windows NT in the chapter "Portability" of the samba HOWTO collection +</member> +</simplelist> + +</sect1> + +<sect1> +<title>smbclient ignores -N !</title> + +<para> +<quote>When getting the list of shares available on a host using the command +<command>smbclient -N -L</command> +the program always prompts for the password if the server is a Samba server. +It also ignores the "-N" argument when querying some (but not all) of our +NT servers. +</quote> + +<para> +No, it does not ignore -N, it is just that your server rejected the +null password in the connection, so smbclient prompts for a password +to try again. +</para> + +<para> +To get the behaviour that you probably want use <command>smbclient -L host -U%</command> +</para> + +<para> +This will set both the username and password to null, which is +an anonymous login for SMB. Using -N would only set the password +to null, and this is not accepted as an anonymous login for most +SMB servers. +</para> + +</sect1> + +<sect1> +<title>The data on the CD-Drive I've shared seems to be corrupted!</title> + +<para> +Some OSes (notably Linux) default to auto detection of file type on +cdroms and do cr/lf translation. This is a very bad idea when use with +Samba. It causes all sorts of stuff ups. +</para> + +<para> +To overcome this problem use conv=binary when mounting the cdrom +before exporting it with Samba. +</para> + +</sect1> + +<sect1> +<title>Why can users access home directories of other users?</title> + +<para> +<quote> +We are unable to keep individual users from mapping to any other user's +home directory once they have supplied a valid password! They only need +to enter their own password. I have not found *any* method that I can +use to configure samba to enforce that only a user may map their own +home directory. +</quote> +</para> + +<para><quote> +User xyzzy can map his home directory. Once mapped user xyzzy can also map +*anyone* elses home directory! +</quote></para> + +<para> +This is not a security flaw, it is by design. Samba allows +users to have *exactly* the same access to the UNIX filesystem +as they would if they were logged onto the UNIX box, except +that it only allows such views onto the file system as are +allowed by the defined shares. +</para> + +<para> +This means that if your UNIX home directories are set up +such that one user can happily cd into another users +directory and do an ls, the UNIX security solution is to +change the UNIX file permissions on the users home directories +such that the cd and ls would be denied. +</para> + +<para> +Samba tries very hard not to second guess the UNIX administrators +security policies, and trusts the UNIX admin to set +the policies and permissions he or she desires. +</para> + +<para> +Samba does allow the setup you require when you have set the +"only user = yes" option on the share, is that you have not set the +valid users list for the share. +</para> + +<para> +Note that only user works in conjunction with the users= list, +so to get the behavior you require, add the line : +<programlisting> +users = %S +</programlisting> +this is equivalent to: +<programlisting> +valid users = %S +</programlisting> +to the definition of the [homes] share, as recommended in +the smb.conf man page. +</para> + +</sect1> + +<sect1> +<title>Until a few minutes after samba has started, clients get the error "Domain Controller Unavailable"</title> +<para> +A domain controller has to announce on the network who it is. This usually takes a while. +</para> +</sect1> + +</chapter> |