#! /usr/bin/python -E # Authors: Martin Nagy # Based on ipa-server-install by Karl MacMillan # # Copyright (C) 2007 - 2009 Red Hat # see file 'COPYING' for use and warranty information # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # from ipaserver.plugins.ldap2 import ldap2 from ipaserver.install import service, bindinstance, ntpinstance, httpinstance from ipaserver.install.installutils import * from ipaserver.install import installutils from ipapython import version from ipapython import ipautil, sysrestore from ipalib import api, errors, util from ipapython.config import IPAOptionParser from ipalib.constants import DNS_ZONE_REFRESH import krbV import ldap from ipapython.ipa_log_manager import * log_file_name = "/var/log/ipaserver-install.log" def parse_options(): parser = IPAOptionParser(version=version.VERSION) parser.add_option("-p", "--ds-password", dest="dm_password", sensitive=True, help="admin password") parser.add_option("-d", "--debug", dest="debug", action="store_true", default=False, help="print debugging information") parser.add_option("--ip-address", dest="ip_address", type="ip", ip_local=True, help="Master Server IP Address") parser.add_option("--forwarder", dest="forwarders", action="append", type="ip", help="Add a DNS forwarder") parser.add_option("--no-forwarders", dest="no_forwarders", action="store_true", default=False, help="Do not add any DNS forwarders, use root servers instead") parser.add_option("--reverse-zone", dest="reverse_zone", help="The reverse DNS zone to use") parser.add_option("--no-reverse", dest="no_reverse", action="store_true", default=False, help="Do not create new reverse DNS zone") parser.add_option("--zonemgr", action="callback", callback=bindinstance.zonemgr_callback, type="string", help="DNS zone manager e-mail address. Defaults to hostmaster@DOMAIN") parser.add_option("--zone-notif", dest="zone_notif", action="store_true", default=False, help="Let name server receive notification when a new zone is added." \ "Zone refresh is turned off when zone notification is enabled") parser.add_option("--zone-refresh", dest="zone_refresh", default=DNS_ZONE_REFRESH, type="int", help="A delay between checks for new DNS zones. Defaults to %d" \ % DNS_ZONE_REFRESH) parser.add_option("-U", "--unattended", dest="unattended", action="store_true", default=False, help="unattended installation never prompts the user") options, args = parser.parse_args() safe_options = parser.get_safe_opts(options) if options.forwarders and options.no_forwarders: parser.error("You cannot specify a --forwarder option together with --no-forwarders") elif options.reverse_zone and options.no_reverse: parser.error("You cannot specify a --reverse-zone option together with --no-reverse") if options.unattended: if not options.forwarders and not options.no_forwarders: parser.error("You must specify at least one --forwarder option or --no-forwarders option") if options.zone_refresh < 0: parser.error("negative numbers not allowed for --zone-refresh") if options.zone_notif: # mutually exclusive features options.zone_refresh = 0 return safe_options, options def main(): safe_options, options = parse_options() if os.getegid() != 0: sys.exit("Must be root to setup server") standard_logging_setup(log_file_name, debug=options.debug, filemode='a') print "\nThe log file for this installation can be found in %s" % log_file_name root_logger.debug('%s was invoked with options: %s' % (sys.argv[0], safe_options)) root_logger.debug("missing options might be asked for interactively later\n") installutils.check_server_configuration() global fstore fstore = sysrestore.FileStore('/var/lib/ipa/sysrestore') print "==============================================================================" print "This program will setup DNS for the FreeIPA Server." print "" print "This includes:" print " * Configure DNS (bind)" print "" print "To accept the default shown in brackets, press the Enter key." print "" # Check bind packages are installed if not bindinstance.check_inst(options.unattended): sys.exit("Aborting installation.") # Initialize the ipalib api cfg = dict( in_server=True, debug=options.debug, ) api.bootstrap(**cfg) api.finalize() if bindinstance.named_conf_exists(): sys.exit("\nDNS is already configured in this IPA server.") # Create a BIND instance if options.unattended and not options.dm_password: sys.exit("\nIn unattended mode you need to provide at least the -p option") dm_password = options.dm_password or read_password("Directory Manager", confirm=False, validate=False) if dm_password is None: sys.exit("\nDirectory Manager password required") bind = bindinstance.BindInstance(fstore, dm_password) # try the connection try: bind.ldap_connect() bind.ldap_disconnect() except ldap.INVALID_CREDENTIALS, e: sys.exit("Password is not valid!") # Check we have a public IP that is associated with the hostname if options.ip_address: ip = options.ip_address else: hostaddr = resolve_host(api.env.host) try: if len(hostaddr) > 1: print >> sys.stderr, "The server hostname resolves to more than one address:" for addr in hostaddr: print >> sys.stderr, " %s" % addr if options.ip_address: if str(options.ip_address) not in hostaddr: print >> sys.stderr, "Address passed in --ip-address did not match any resolved" print >> sys.stderr, "address!" sys.exit(1) print "Selected IP address:", str(options.ip_address) ip = options.ip_address else: if options.unattended: print >> sys.stderr, "Please use --ip-address option to specify the address" sys.exit(1) else: ip = read_ip_address(api.env.host, fstore) else: ip = hostaddr and ipautil.CheckedIPAddress(hostaddr[0], match_local=True) except Exception, e: print "Error: Invalid IP Address %s: %s" % (ip, e) ip = None if not ip: if options.unattended: sys.exit("Unable to resolve IP address for host name") else: ip = read_ip_address(api.env.host, fstore) ip_address = str(ip) root_logger.debug("will use ip_address: %s\n", ip_address) if options.reverse_zone and not bindinstance.verify_reverse_zone(options.reverse_zone, ip): sys.exit(1) if options.no_forwarders: dns_forwarders = () elif options.forwarders: dns_forwarders = options.forwarders else: dns_forwarders = read_dns_forwarders() root_logger.debug("will use dns_forwarders: %s\n", str(dns_forwarders)) if bind.dm_password: api.Backend.ldap2.connect(bind_dn="cn=Directory Manager", bind_pw=bind.dm_password) else: # See if our LDAP server is up and we can talk to it over GSSAPI ccache = krbV.default_context().default_ccache().name api.Backend.ldap2.connect(ccache) if options.reverse_zone: reverse_zone = bindinstance.normalize_zone(options.reverse_zone) else: reverse_zone = bindinstance.find_reverse_zone(ip) if reverse_zone is None and not options.no_reverse: reverse_zone = bindinstance.get_reverse_zone_default(ip) if not options.unattended and bindinstance.create_reverse(): reverse_zone = bindinstance.read_reverse_zone(reverse_zone, ip) if reverse_zone is not None: print "Using reverse zone %s" % reverse_zone conf_ntp = ntpinstance.NTPInstance(fstore).is_enabled() if not options.unattended: print "" print "The following operations may take some minutes to complete." print "Please wait until the prompt is returned." print "" bind.setup(api.env.host, ip_address, api.env.realm, api.env.domain, dns_forwarders, conf_ntp, reverse_zone, zonemgr=options.zonemgr, zone_refresh=options.zone_refresh, zone_notif=options.zone_notif) bind.create_instance() # Restart http instance to make sure that python-dns has the right resolver # https://bugzilla.redhat.com/show_bug.cgi?id=800368 http = httpinstance.HTTPInstance(fstore) service.print_msg("Restarting the web server") http.restart() print "==============================================================================" print "Setup complete" print "" bind.check_global_configuration() print "" print "" print "\tYou must make sure these network ports are open:" print "\t\tTCP Ports:" print "\t\t * 53: bind" print "\t\tUDP Ports:" print "\t\t * 53: bind" return 0 if __name__ == '__main__': installutils.run_script(main, log_file_name=log_file_name, operation_name='ipa-dns-install')