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https://salsa.debian.org/freeipa-team/freeipa.git
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aece880d8f
When DNS plugin is installed via ipa-dns-install and user has a valid Kerberos ticket at the time, the DNS installation is corrupt and named won't start, reporting Preauthentication error. When the non-DM identity is used for authentication, krbprincipalkey attribute in DNS service LDAP record is not created, thus leading to the error. This patch makes sure that authentication with Directory Manager password is used every time. https://fedorahosted.org/freeipa/ticket/1483
219 lines
8.3 KiB
Python
Executable File
219 lines
8.3 KiB
Python
Executable File
#! /usr/bin/python -E
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# Authors: Martin Nagy <mnagy@redhat.com>
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# Based on ipa-server-install by Karl MacMillan <kmacmillan@mentalrootkit.com>
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#
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# Copyright (C) 2007 - 2009 Red Hat
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# see file 'COPYING' for use and warranty information
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import traceback
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from ipaserver.plugins.ldap2 import ldap2
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from ipaserver.install import bindinstance, ntpinstance
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from ipaserver.install.installutils import *
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from ipapython import version
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from ipapython import ipautil, sysrestore
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from ipalib import api, errors, util
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from ipapython.config import IPAOptionParser
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import krbV
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import ldap
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def parse_options():
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parser = IPAOptionParser(version=version.VERSION)
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parser.add_option("-p", "--ds-password", dest="dm_password",
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sensitive=True, help="admin password")
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parser.add_option("-d", "--debug", dest="debug", action="store_true",
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default=False, help="print debugging information")
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parser.add_option("--ip-address", dest="ip_address",
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type="ip", ip_local=True, help="Master Server IP Address")
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parser.add_option("--forwarder", dest="forwarders", action="append",
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type="ip", help="Add a DNS forwarder")
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parser.add_option("--no-forwarders", dest="no_forwarders", action="store_true",
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default=False, help="Do not add any DNS forwarders, use root servers instead")
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parser.add_option("--reverse-zone", dest="reverse_zone", help="The reverse DNS zone to use")
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parser.add_option("--no-reverse", dest="no_reverse", action="store_true",
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default=False, help="Do not create reverse DNS zone")
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parser.add_option("--zonemgr", dest="zonemgr",
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help="DNS zone manager e-mail address. Defaults to root")
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parser.add_option("-U", "--unattended", dest="unattended", action="store_true",
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default=False, help="unattended installation never prompts the user")
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options, args = parser.parse_args()
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safe_options = parser.get_safe_opts(options)
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if options.forwarders and options.no_forwarders:
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parser.error("You cannot specify a --forwarder option together with --no-forwarders")
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elif options.reverse_zone and options.no_reverse:
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parser.error("You cannot specify a --reverse-zone option together with --no-reverse")
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if options.unattended:
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if not options.forwarders and not options.no_forwarders:
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parser.error("You must specify at least one --forwarder option or --no-forwarders option")
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return safe_options, options
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def main():
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safe_options, options = parse_options()
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if os.getegid() != 0:
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sys.exit("Must be root to setup server")
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standard_logging_setup("/var/log/ipaserver-install.log", options.debug, filemode='a')
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print "\nThe log file for this installation can be found in /var/log/ipaserver-install.log"
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logging.debug('%s was invoked with options: %s' % (sys.argv[0], safe_options))
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logging.debug("missing options might be asked for interactively later\n")
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global fstore
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fstore = sysrestore.FileStore('/var/lib/ipa/sysrestore')
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print "=============================================================================="
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print "This program will setup DNS for the FreeIPA Server."
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print ""
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print "This includes:"
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print " * Configure DNS (bind)"
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print ""
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print "To accept the default shown in brackets, press the Enter key."
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print ""
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# Check bind packages are installed
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if not bindinstance.check_inst(options.unattended):
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sys.exit("Aborting installation.")
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# Initialize the ipalib api
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cfg = dict(
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in_server=True,
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debug=options.debug,
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)
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api.bootstrap(**cfg)
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api.finalize()
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if bindinstance.named_conf_exists():
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sys.exit("\nDNS is already configured in this IPA server.")
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# Check we have a public IP that is associated with the hostname
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if options.ip_address:
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ip = options.ip_address
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else:
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hostaddr = resolve_host(api.env.host)
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ip = hostaddr and ipautil.CheckedIPAddress(hostaddr)
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try:
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verify_ip_address(ip)
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except Exception, e:
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print "Error: Invalid IP Address %s: %s" % (ip, e)
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ip = None
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if not ip:
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if options.unattended:
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sys.exit("Unable to resolve IP address for host name")
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else:
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ip = read_ip_address(api.env.host, fstore)
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ip_address = str(ip)
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logging.debug("will use ip_address: %s\n", ip_address)
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if options.reverse_zone and not bindinstance.verify_reverse_zone(options.reverse_zone, ip):
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sys.exit(1)
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if options.no_forwarders:
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dns_forwarders = ()
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elif options.forwarders:
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dns_forwarders = options.forwarders
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else:
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dns_forwarders = read_dns_forwarders()
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logging.debug("will use dns_forwarders: %s\n", str(dns_forwarders))
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conf_ntp = ntpinstance.NTPInstance(fstore).is_enabled()
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if not options.unattended:
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print ""
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print "The following operations may take some minutes to complete."
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print "Please wait until the prompt is returned."
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print ""
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# Create a BIND instance
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if options.unattended and not options.dm_password:
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sys.exit("\nIn unattended mode you need to provide at least the -p option")
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dm_password = options.dm_password or read_password("Directory Manager",
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confirm=False, validate=False)
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bind = bindinstance.BindInstance(fstore, dm_password)
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# try the connection
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try:
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bind.ldap_connect()
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bind.ldap_disconnect()
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except ldap.INVALID_CREDENTIALS, e:
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sys.exit("Password is not valid!")
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if bind.dm_password:
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api.Backend.ldap2.connect(bind_dn="cn=Directory Manager", bind_pw=bind.dm_password)
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else:
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# See if our LDAP server is up and we can talk to it over GSSAPI
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ccache = krbV.default_context().default_ccache().name
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api.Backend.ldap2.connect(ccache)
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if options.reverse_zone:
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reverse_zone = bindinstance.normalize_zone(options.reverse_zone)
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else:
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reverse_zone = bindinstance.find_reverse_zone(ip)
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if reverse_zone is None and not options.no_reverse:
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reverse_zone = bindinstance.get_reverse_zone_default(ip)
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if not options.unattended and bindinstance.create_reverse():
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reverse_zone = bindinstance.read_reverse_zone(reverse_zone, ip)
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if reverse_zone is not None:
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print "Using reverse zone %s" % reverse_zone
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bind.setup(api.env.host, ip_address, api.env.realm, api.env.domain, dns_forwarders, conf_ntp, reverse_zone, zonemgr=options.zonemgr)
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bind.create_instance()
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print "=============================================================================="
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print "Setup complete"
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print ""
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print "\tYou must make sure these network ports are open:"
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print "\t\tTCP Ports:"
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print "\t\t * 53: bind"
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print "\t\tUDP Ports:"
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print "\t\t * 53: bind"
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return 0
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try:
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sys.exit(main())
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except SystemExit, e:
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sys.exit(e)
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except KeyboardInterrupt:
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print "Installation cancelled."
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except RuntimeError, e:
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print str(e)
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except HostnameLocalhost:
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print "The hostname resolves to the localhost address (127.0.0.1/::1)"
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print "Please change your /etc/hosts file so that the hostname"
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print "resolves to the ip address of your network interface."
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print "The KDC service does not listen on localhost"
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print ""
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print "Please fix your /etc/hosts file and restart the setup program"
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except Exception, e:
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message = "Unexpected error - see ipaserver-install.log for details:\n %s" % str(e)
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print message
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message = str(e)
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for str in traceback.format_tb(sys.exc_info()[2]):
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message = message + "\n" + str
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logging.debug(message)
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sys.exit(1)
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