[Freeipa-devel] [PATCH 0538-0540] DNS locations: epilogue

Martin Basti mbasti at redhat.com
Fri Jun 24 10:25:02 UTC 2016



On 23.06.2016 18:26, Petr Spacek wrote:
> On 23.6.2016 16:38, Martin Basti wrote:
>> Patches attached.
>>
>>
>> https://fedorahosted.org/freeipa/ticket/2008
>>
>>
>> freeipa-mbasti-0538-Revert-DNS-Locations-do-not-generate-location-record.patch
>>
>>
>>  From 28499422115cbfbb343033511319c7c8710e1ff5 Mon Sep 17 00:00:00 2001
>> From: Martin Basti <mbasti at redhat.com>
>> Date: Tue, 21 Jun 2016 18:04:13 +0200
>> Subject: [PATCH 1/4] Revert "DNS Locations: do not generate location records
>>   for unused locations"
>>
>> This reverts commit bbf8227e3fd678d4bd6659a12055ba3dbe1c8230.
>>
>> After deeper investigation, we found out that empty locations are needed
>> for clients, because clients may have cached records for longer time for
>> that particular location. Only way how to remove location is to remove
>> it using location-del
>>
>> https://fedorahosted.org/freeipa/ticket/2008
>> ---
>>   ipaserver/dns_data_management.py | 11 ++++-------
>>   1 file changed, 4 insertions(+), 7 deletions(-)
>>
>> diff --git a/ipaserver/dns_data_management.py b/ipaserver/dns_data_management.py
>> index a9e9c0a3856961b5494c8d3ca30ddb2e4aa5c523..eac2e7d1a5618ea92372bd81b7d12752791ef117 100644
>> --- a/ipaserver/dns_data_management.py
>> +++ b/ipaserver/dns_data_management.py
>> @@ -68,7 +68,6 @@ class IPASystemRecords(object):
>>           self.api_instance = api_instance
>>           self.domain_abs = DNSName(self.api_instance.env.domain).make_absolute()
>>           self.servers_data = {}
>> -        self.used_locations = set()
>>           self.__init_data()
>>   
>>       def reload_data(self):
>> @@ -92,7 +91,6 @@ class IPASystemRecords(object):
>>   
>>       def __init_data(self):
>>           self.servers_data = {}
>> -        self.used_locations = set()
>>   
>>           servers_result = self.api_instance.Command.server_find(
>>               pkey_only=True)['result']
>> @@ -104,8 +102,6 @@ class IPASystemRecords(object):
>>                   'location': location,
>>                   'roles': roles,
>>               }
>> -            if location:
>> -                self.used_locations.add(location)
>>   
>>       def __add_srv_records(
>>           self, zone_obj, hostname, rname_port_map,
>> @@ -353,12 +349,13 @@ class IPASystemRecords(object):
>>                   pkey_only=True)['result']
>>               servers = [s['cn'][0] for s in servers_result]
>>   
>> -        # generate only records for used location, records for unassigned
>> -        # locations are useless
>> +        locations_result = self.api_instance.Command.location_find()['result']
>> +        locations = [l['idnsname'][0] for l in locations_result]
>> +
>>           for server in servers:
>>               self._get_location_dns_records_for_server(
>>                   zone_obj, server,
>> -                self.used_locations, roles=roles,
>> +                locations, roles=roles,
>>                   include_master_role=include_master_role)
>>           return zone_obj
>>   
>> -- 2.5.5
>>
>>
>> freeipa-mbasti-0539-DNS-Locations-hide-option-no-msdcs-in-adtrust-instal.patch
>>
>>
>>  From 37cae4f05cd3c0a2c4de037402938a5437dbc072 Mon Sep 17 00:00:00 2001
>> From: Martin Basti <mbasti at redhat.com>
>> Date: Tue, 21 Jun 2016 18:17:55 +0200
>> Subject: [PATCH 2/4] DNS Locations: hide option --no-msdcs in adtrust-install
>>
>> Since DNS location mechanism is active, this option has no effect,
>> because records are generate dynamically.
>>
>> https://fedorahosted.org/freeipa/ticket/2008
>> ---
>>   install/tools/ipa-adtrust-install    | 10 +++++++---
>>   ipaserver/install/adtrustinstance.py | 21 ++++++++-------------
>>   2 files changed, 15 insertions(+), 16 deletions(-)
>>
>> diff --git a/install/tools/ipa-adtrust-install b/install/tools/ipa-adtrust-install
>> index 5babcdb7cb169e4a944acca55739064e0464d41e..5ba72a65d00ca683239a4ff3c5e7cfdc62c0bb6c 100755
>> --- a/install/tools/ipa-adtrust-install
>> +++ b/install/tools/ipa-adtrust-install
>> @@ -29,6 +29,8 @@ import ldap
>>   
>>   import six
>>   
>> +from optparse import SUPPRESS_HELP
>> +
>>   from ipaserver.install import adtrustinstance
>>   from ipaserver.install.installutils import (
>>       read_password,
>> @@ -54,9 +56,11 @@ def parse_options():
>>                         default=False, help="print debugging information")
>>       parser.add_option("--netbios-name", dest="netbios_name",
>>                         help="NetBIOS name of the IPA domain")
>> +
>> +    # no-msdcs has not effect, option is here just for backward compatibility
>>       parser.add_option("--no-msdcs", dest="no_msdcs", action="store_true",
>> -                      default=False, help="Do not create DNS service records " \
>> -                                          "for Windows in managed DNS server")
>> +                      default=False, help=SUPPRESS_HELP)
>> +
>>       parser.add_option("--rid-base", dest="rid_base", type=int, default=1000,
>>                         help="Start value for mapping UIDs and GIDs to RIDs")
>>       parser.add_option("--secondary-rid-base", dest="secondary_rid_base",
>> @@ -390,7 +394,7 @@ def main():
>>       smb.setup(api.env.host, api.env.realm,
>>                 netbios_name, reset_netbios_name,
>>                 options.rid_base, options.secondary_rid_base,
>> -              options.no_msdcs, options.add_sids,
>> +              options.add_sids,
>>                 enable_compat = options.enable_compat)
>>       smb.find_local_id_range()
>>       smb.create_instance()
>> diff --git a/ipaserver/install/adtrustinstance.py b/ipaserver/install/adtrustinstance.py
>> index 6ab15df27216580d440ce72386113d6872c046b2..0114a33a046b863b7e901c3d6f02044f18c45f85 100644
>> --- a/ipaserver/install/adtrustinstance.py
>> +++ b/ipaserver/install/adtrustinstance.py
>> @@ -124,7 +124,6 @@ class ADTRUSTInstance(service.Service):
>>       def __init__(self, fstore=None):
>>           self.netbios_name = None
>>           self.reset_netbios_name = None
>> -        self.no_msdcs = None
>>           self.add_sids = None
>>           self.smbd_user = None
>>           self.smb_dn_pwd = None
>> @@ -585,17 +584,14 @@ class ADTRUSTInstance(service.Service):
>>   
>>           err_msg = None
>>   
>> -        if self.no_msdcs:
>> -            err_msg = '--no-msdcs was given, special DNS service records ' \
>> -                      'are not added to local DNS server'
>> +        ret = api.Command['dns_is_enabled']()
>> +        if not ret['result']:
>> +            err_msg = "DNS management was not enabled at install time."
>>           else:
>> -            ret = api.Command['dns_is_enabled']()
>> -            if not ret['result']:
>> -                err_msg = "DNS management was not enabled at install time."
>> -            else:
>> -                if not dns_zone_exists(zone):
>> -                    err_msg = "DNS zone %s cannot be managed " \
>> -                              "as it is not defined in IPA" % zone
>> +            if not dns_zone_exists(zone):
>> +                err_msg = (
>> +                    "DNS zone %s cannot be managed as it is not defined in "
>> +                    "IPA" % zone)
>>   
>>           if err_msg:
>>               self.print_msg(err_msg)
>> @@ -766,7 +762,7 @@ class ADTRUSTInstance(service.Service):
>>   
>>       def setup(self, fqdn, realm_name, netbios_name,
>>                 reset_netbios_name, rid_base, secondary_rid_base,
>> -              no_msdcs=False, add_sids=False, smbd_user="samba",
>> +              add_sids=False, smbd_user="samba",
>>                 enable_compat=False):
>>           self.fqdn = fqdn
>>           self.realm = realm_name
>> @@ -774,7 +770,6 @@ class ADTRUSTInstance(service.Service):
>>           self.reset_netbios_name = reset_netbios_name
>>           self.rid_base = rid_base
>>           self.secondary_rid_base = secondary_rid_base
>> -        self.no_msdcs = no_msdcs
>>           self.add_sids = add_sids
>>           self.enable_compat = enable_compat
>>           self.smbd_user = smbd_user
>> -- 2.5.5
>>
>>
>> freeipa-mbasti-0540-DNS-Locations-optimization-use-server-find-to-get-in.patch
>>
>>
>>  From 86a3e48bd2494867cdf538d6902ef65cbaada1af Mon Sep 17 00:00:00 2001
>> From: Martin Basti <mbasti at redhat.com>
>> Date: Wed, 22 Jun 2016 13:12:52 +0200
>> Subject: [PATCH 3/4] DNS Locations: optimization: use server-find to get
>>   information
>>
>> Because separated calls for of server-show, getting server data is quite
>> slow. This commit replaces several server-show with one server-find
>> command. There are future plans to improve speed of server-find that
>> will be beneficial for DNS locations.
>>
>> https://fedorahosted.org/freeipa/ticket/2008
>> ---
>>   ipaserver/dns_data_management.py | 10 ++++------
>>   1 file changed, 4 insertions(+), 6 deletions(-)
>>
>> diff --git a/ipaserver/dns_data_management.py b/ipaserver/dns_data_management.py
>> index eac2e7d1a5618ea92372bd81b7d12752791ef117..e7f65958fb908426ad186b327c3e8cb8f37d66f4 100644
>> --- a/ipaserver/dns_data_management.py
>> +++ b/ipaserver/dns_data_management.py
>> @@ -78,8 +78,7 @@ class IPASystemRecords(object):
>>           """
>>           self.__init_data()
>>   
>> -    def __get_server_attrs(self, hostname):
>> -        server_result = self.api_instance.Command.server_show(hostname)['result']
>> +    def __get_server_attrs(self, server_result):
>>           weight = int(server_result.get('ipaserviceweight', [u'100'])[0])
>>           location = server_result.get('ipalocation_location', [None])[0]
>>           roles = set(server_result.get('enabled_role_servrole', ()))
>> @@ -93,11 +92,10 @@ class IPASystemRecords(object):
>>           self.servers_data = {}
>>   
>>           servers_result = self.api_instance.Command.server_find(
>> -            pkey_only=True)['result']
>> -        servers = [s['cn'][0] for s in servers_result]
>> -        for s in servers:
>> +            no_members=False)['result']
>> +        for s in servers_result:
>>               weight, location, roles = self.__get_server_attrs(s)
>> -            self.servers_data[s] = {
>> +            self.servers_data[s['cn'][0]] = {
>>                   'weight': weight,
>>                   'location': location,
>>                   'roles': roles,
>> -- 2.5.5
>>
>>
>> freeipa-mbasti-0541-DNS-Locations-cleanup-of-bininstance.patch
>>
>>
>>  From 6161501cc11a25b811bd56ba0244b00eaa9edbe0 Mon Sep 17 00:00:00 2001
>> From: Martin Basti <mbasti at redhat.com>
>> Date: Thu, 23 Jun 2016 14:50:11 +0200
>> Subject: [PATCH 4/4] DNS Locations: cleanup of bininstance
>>
>> We don't need anymore:
>> * sample of zone file - list of all records required by IPa will be
>> provided
>>
>> * NTP related params - DNS records will be updated automatically,
>> based on LDAP values
>>
>> * CA related params - DNS records will be updated automatically based
>> * on LDAP values
>>
>> https://fedorahosted.org/freeipa/ticket/2008
>> ---
>>   install/share/bind.zone.db.template        | 29 ---------------
>>   ipaserver/dns_data_management.py           |  9 +++++
>>   ipaserver/install/bindinstance.py          | 58 ++++++++----------------------
>>   ipaserver/install/dns.py                   |  5 ++-
>>   ipaserver/install/server/install.py        |  8 ++---
>>   ipaserver/install/server/replicainstall.py |  4 +--
>>   6 files changed, 30 insertions(+), 83 deletions(-)
>>   delete mode 100644 install/share/bind.zone.db.template
>>
>> diff --git a/install/share/bind.zone.db.template b/install/share/bind.zone.db.template
>> deleted file mode 100644
>> index ec175c60825869ea9b86f7d1351a96189028b5d4..0000000000000000000000000000000000000000
>> --- a/install/share/bind.zone.db.template
>> +++ /dev/null
>> @@ -1,29 +0,0 @@
>> -$$ORIGIN $DOMAIN.
>> -$$TTL	86400
>> -@			IN SOA	$DOMAIN. $ZONEMGR (
>> -				01		; serial
>> -				3H		; refresh
>> -				15M		; retry
>> -				1W		; expiry
>> -				1D )		; minimum
>> -
>> -        		IN NS			$HOST
>> -$HOST			IN A			$IP
>> -;
>> -; ldap servers
>> -_ldap._tcp		IN SRV 0 100 389	$HOST
>> -
>> -;kerberos realm
>> -_kerberos		IN TXT $REALM
>> -
>> -; kerberos servers
>> -_kerberos._tcp		IN SRV 0 100 88		$HOST
>> -_kerberos._udp		IN SRV 0 100 88		$HOST
>> -_kerberos-master._tcp	IN SRV 0 100 88		$HOST
>> -_kerberos-master._udp	IN SRV 0 100 88		$HOST
>> -_kpasswd._tcp		IN SRV 0 100 464	$HOST
>> -_kpasswd._udp		IN SRV 0 100 464	$HOST
>> -$OPTIONAL_NTP
>> -
>> -; CNAME for IPA CA replicas (used for CRL, OCSP)
>> -$IPA_CA_RECORD
>> diff --git a/ipaserver/dns_data_management.py b/ipaserver/dns_data_management.py
>> index e7f65958fb908426ad186b327c3e8cb8f37d66f4..48717c7c478ea4ea62e6cdfe169fd9fe99c0880b 100644
>> --- a/ipaserver/dns_data_management.py
>> +++ b/ipaserver/dns_data_management.py
>> @@ -477,3 +477,12 @@ class IPASystemRecords(object):
>>                       )
>>                   )
>>           return records
>> +
>> +    @classmethod
>> +    def records_list_from_zone(cls, zone_obj, sort=True):
>> +        records = []
>> +        for name, node in zone_obj.items():
>> +            records.extend(IPASystemRecords.records_list_from_node(name, node))
>> +        if sort:
>> +            records.sort()
>> +        return records
>> diff --git a/ipaserver/install/bindinstance.py b/ipaserver/install/bindinstance.py
>> index 08c32f4837a5b4f72b78a52002a58c888db6cc91..a63b2dfd329f7cf535c2cf6e2d83b5c86fdddacf 100644
>> --- a/ipaserver/install/bindinstance.py
>> +++ b/ipaserver/install/bindinstance.py
>> @@ -623,9 +623,9 @@ class BindInstance(service.Service):
>>       suffix = ipautil.dn_attribute_property('_suffix')
>>   
>>       def setup(self, fqdn, ip_addresses, realm_name, domain_name, forwarders,
>> -              forward_policy, ntp, reverse_zones,
>> +              forward_policy, reverse_zones,
>>                 named_user=constants.NAMED_USER, zonemgr=None,
>> -              ca_configured=None, no_dnssec_validation=False):
>> +              no_dnssec_validation=False):
>>           self.named_user = named_user
>>           self.fqdn = fqdn
>>           self.ip_addresses = ip_addresses
>> @@ -635,9 +635,7 @@ class BindInstance(service.Service):
>>           self.forward_policy = forward_policy
>>           self.host = fqdn.split(".")[0]
>>           self.suffix = ipautil.realm_to_suffix(self.realm)
>> -        self.ntp = ntp
>>           self.reverse_zones = reverse_zones
>> -        self.ca_configured = ca_configured
>>           self.no_dnssec_validation=no_dnssec_validation
>>   
>>           if not zonemgr:
>> @@ -666,12 +664,17 @@ class BindInstance(service.Service):
>>       def host_in_default_domain(self):
>>           return normalize_zone(self.host_domain) == normalize_zone(self.domain)
>>   
>> -    def create_sample_bind_zone(self):
>> -        bind_txt = ipautil.template_file(ipautil.SHARE_DIR + "bind.zone.db.template", self.sub_dict)
>> -        [bind_fd, bind_name] = tempfile.mkstemp(".db","sample.zone.")
>> -        os.write(bind_fd, bind_txt)
>> -        os.close(bind_fd)
>> -        print("Sample zone file for bind has been created in "+bind_name)
>> +    def create_file_with_system_records(self):
>> +        system_records = IPASystemRecords(self.api)
>> +        text = u'\n'.join(
>> +            IPASystemRecords.records_list_from_zone(
>> +                system_records.get_base_records()
>> +            )
>> +        )
>> +        [fd, name] = tempfile.mkstemp(".db","ipa.system.records.")
>> +        os.write(fd, text)
>> +        os.close(fd)
>> +        print("Please add records in this file to your DNS system:", name)
>>   
>>       def create_instance(self):
>>   
>> @@ -761,41 +764,10 @@ class BindInstance(service.Service):
>>               root_logger.debug("Unable to mask named (%s)", e)
>>   
>>       def __setup_sub_dict(self):
>> -        if self.forwarders:
>> -            fwds = "\n"
>> -            for forwarder in self.forwarders:
>> -                fwds += "\t\t%s;\n" % forwarder
>> -            fwds += "\t"
>> -        else:
>> -            fwds = " "
>> -
>> -        if self.ntp:
>> -            optional_ntp =  "\n;ntp server\n"
>> -            optional_ntp += "_ntp._udp\t\tIN SRV 0 100 123\t%s" % self.host_in_rr
>> -        else:
>> -            optional_ntp = ""
>> -
>> -        ipa_ca = ""
>> -        for addr in self.ip_addresses:
>> -            if addr.version in (4, 6):
>> -                ipa_ca += "%s\t\t\tIN %s\t\t\t%s\n" % (
>> -                    IPA_CA_RECORD,
>> -                    "A" if addr.version == 4 else "AAAA",
>> -                    str(addr))
>> -
>>           self.sub_dict = dict(
>>               FQDN=self.fqdn,
>> -            IP=[str(ip) for ip in self.ip_addresses],
>> -            DOMAIN=self.domain,
>> -            HOST=self.host,
>> -            REALM=self.realm,
>>               SERVER_ID=installutils.realm_to_serverid(self.realm),
>> -            FORWARDERS=fwds,
>> -            FORWARD_POLICY=self.forward_policy,
>>               SUFFIX=self.suffix,
>> -            OPTIONAL_NTP=optional_ntp,
>> -            ZONEMGR=self.zonemgr,
>> -            IPA_CA_RECORD=ipa_ca,
>>               BINDKEYS_FILE=paths.NAMED_BINDKEYS_FILE,
>>               MANAGED_KEYS_DIR=paths.NAMED_MANAGED_KEYS_DIR,
>>               ROOT_KEY=paths.NAMED_ROOT_KEY,
>> @@ -1026,16 +998,14 @@ class BindInstance(service.Service):
>>           ipautil.run([paths.GENERATE_RNDC_KEY])
>>   
>>       def add_master_dns_records(self, fqdn, ip_addresses, realm_name, domain_name,
>> -                               reverse_zones, ntp=False, ca_configured=None):
>> +                               reverse_zones):
>>           self.fqdn = fqdn
>>           self.ip_addresses = ip_addresses
>>           self.realm = realm_name
>>           self.domain = domain_name
>>           self.host = fqdn.split(".")[0]
>>           self.suffix = ipautil.realm_to_suffix(self.realm)
>> -        self.ntp = ntp
>>           self.reverse_zones = reverse_zones
>> -        self.ca_configured = ca_configured
>>           self.first_instance = False
>>           self.zonemgr = 'hostmaster.%s' % self.domain
>>   
>> diff --git a/ipaserver/install/dns.py b/ipaserver/install/dns.py
>> index 2ea11739e07c73132bddee01309af618532e9815..44ebd39dfa7f1d947061c3b4c0347242f8502be0 100644
>> --- a/ipaserver/install/dns.py
>> +++ b/ipaserver/install/dns.py
>> @@ -329,10 +329,9 @@ def install(standalone, replica, options, api=api):
>>       bind = bindinstance.BindInstance(fstore, ldapi=True, api=api,
>>                                        autobind=AUTOBIND_ENABLED)
>>       bind.setup(api.env.host, ip_addresses, api.env.realm, api.env.domain,
>> -               options.forwarders, options.forward_policy, conf_ntp,
>> +               options.forwarders, options.forward_policy,
>>                  reverse_zones, zonemgr=options.zonemgr,
>> -               no_dnssec_validation=options.no_dnssec_validation,
>> -               ca_configured=options.setup_ca)
>> +               no_dnssec_validation=options.no_dnssec_validation)
>>   
>>       if standalone and not options.unattended:
>>           print("")
>> diff --git a/ipaserver/install/server/install.py b/ipaserver/install/server/install.py
>> index 930cca7b31ca06c04ab92deff49b6a4f198c2b6e..c28c095fb3cccd4cd412c0496374050434e438a1 100644
>> --- a/ipaserver/install/server/install.py
>> +++ b/ipaserver/install/server/install.py
>> @@ -848,17 +848,17 @@ def install(installer):
>>       if setup_ca:
>>           services.knownservices['pki_tomcatd'].restart('pki-tomcat')
>>   
>> +    api.Backend.ldap2.connect(autobind=True)
>>       if options.setup_dns:
>> -        api.Backend.ldap2.connect(autobind=True)
>>           dns.install(False, False, options)
>>       else:
>>           # Create a BIND instance
>>           bind = bindinstance.BindInstance(fstore, dm_password)
>>           bind.setup(host_name, ip_addresses, realm_name,
>> -                   domain_name, (), 'first', not options.no_ntp, (),
>> -                   zonemgr=options.zonemgr, ca_configured=setup_ca,
>> +                   domain_name, (), 'first', (),
>> +                   zonemgr=options.zonemgr,
>>                      no_dnssec_validation=options.no_dnssec_validation)
>> -        bind.create_sample_bind_zone()
>> +        bind.create_file_with_system_records()
>>   
>>       # Restart httpd to pick up the new IPA configuration
>>       service.print_msg("Restarting the web server")
>> diff --git a/ipaserver/install/server/replicainstall.py b/ipaserver/install/server/replicainstall.py
>> index 52b2ea5b0691cd99c6cb566af5a15af3b2dffb14..0277d324a60b2893dda57119453dabf5df28ea10 100644
>> --- a/ipaserver/install/server/replicainstall.py
>> +++ b/ipaserver/install/server/replicainstall.py
>> @@ -210,9 +210,7 @@ def install_dns_records(config, options, remote_api):
>>                                           str(ip),
>>                                           config.realm_name,
>>                                           config.domain_name,
>> -                                        reverse_zone,
>> -                                        not options.no_ntp,
>> -                                        options.setup_ca)
>> +                                        reverse_zone)
>>       except errors.NotFound as e:
>>           root_logger.debug('Replica DNS records could not be added '
>>                             'on master: %s', str(e))
>> -- 2.5.5
> While testing this patch I've found out that ipa-dns-install does not work
> idempotently anymore and explodes when re-run.
>
> I'm not sure what is the root cause yet.
>
> # ipa-dns-install --forwarder 10.34.78.1
>
> WARNING: yacc table file version is out of date
>
> The log file for this installation can be found in /var/log/ipaserver-install.log
> ==============================================================================
> This program will setup DNS for the FreeIPA Server.
>
> This includes:
>    * Configure DNS (bind)
>    * Configure SoftHSM (required by DNSSEC)
>    * Configure ipa-dnskeysyncd (required by DNSSEC)
>
> NOTE: DNSSEC zone signing is not enabled by default
>
>
> To accept the default shown in brackets, press the Enter key.
>
> Checking DNS forwarders, please wait ...
> Do you want to search for missing reverse zones? [yes]:
>
> The following operations may take some minutes to complete.
> Please wait until the prompt is returned.
>
> Configuring DNS (named)
>    [1/8]: generating rndc key file
>    [2/8]: setting up our own record
> ipa         : ERROR    DNS query for
> vm-058-082.abc.idm.lab.eng.brq.redhat.com. A failed: The DNS operation timed
> out after 30.0012078285 seconds
>    [error] DNSResolverError: The DNS operation timed out after 30.0012078285
> seconds
> Unexpected error - see /var/log/ipaserver-install.log for details:
> DNSResolverError: The DNS operation timed out after 30.0012078285 seconds
>
> 2016-06-23T15:41:54Z DEBUG   [2/8]: setting up our own record
> 2016-06-23T15:41:54Z DEBUG raw:
> dnszone_show(u'abc.idm.lab.eng.brq.redhat.com', version=u'2.199')
> 2016-06-23T15:41:54Z DEBUG dnszone_show(<DNS name
> abc.idm.lab.eng.brq.redhat.com.>, rights=False, all=False, raw=False,
> version=u'2.199')
> 2016-06-23T15:42:24Z ERROR DNS query for
> vm-058-082.abc.idm.lab.eng.brq.redhat.com. A failed: The DNS operation timed
> out after 30.0012078285 seconds
> 2016-06-23T15:42:24Z DEBUG Traceback (most recent call last):
>    File "/usr/lib/python2.7/site-packages/ipaserver/install/service.py", line
> 448, in start_creation
>      run_step(full_msg, method)
>    File "/usr/lib/python2.7/site-packages/ipaserver/install/service.py", line
> 438, in run_step
>      method()
>    File "/usr/lib/python2.7/site-packages/ipaserver/install/bindinstance.py",
> line 860, in __add_self
>      self.__add_master_records(self.fqdn, self.ip_addresses)
>    File "/usr/lib/python2.7/site-packages/ipaserver/install/bindinstance.py",
> line 843, in __add_master_records
>      verify_host_resolvable(fqdn)
>    File "/usr/lib/python2.7/site-packages/ipalib/util.py", line 76, in
> verify_host_resolvable
>      raise errors.DNSResolverError(exception=ex)
> DNSResolverError: The DNS operation timed out after 30.0012078285 seconds
IMO this the same case as https://fedorahosted.org/freeipa/ticket/5962  
we changed resolving of server hostname from gethosbyname() to pure DNS

Workaround is to set nameserver to /etc/resolv.conf
>
>
>
> I was not able to test replica installation because of some weird ACI problem
> somewhere, replica install is failing with ACIError while adding ldap/replica
> principal. This is probably a regression from some other patchset.
>
> https://fedorahosted.org/freeipa/ticket/5996
>




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