[Samba] After joining domain, Samba uses the workgroup name, not the FQDN when running the net ads command

[Jonathan S. Fisher]

/etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by
resolvconf(8)
#     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 192.168.127.129
search windows.corp.XXX.com

/etc/hosts

127.0.0.1   localhost
127.0.1.1 freeradius.windows.corp.XXX.com freeradius
192.168.127.131 whiskey.windows.corp.XXX.com whiskey
192.168.112.4 wine..windows.corp.XXX.com wine

 /etc/krb5.conf

[libdefaults]
default_realm = WINDOWS.CORP.XXX.COM
krb4_config = /etc/krb.conf
krb4_realms = /etc/krb.realms
kdc_timesync = 1
ccache_type = 4
forwardable = true
proxiable = true

v4_instance_resolve = false
v4_name_convert = {
host = {
rcmd = host
ftp = ftp
}
plain = {
something = something-else
}
}
fcc-mit-ticketflags = true

[realms]
WINDOWS.CORP.XXX.COM = {
kdc = whiskey.windows.corp.XXX.com:88
kdc = wine.windows.corp.XXX.com:88
admin_server = whiskey.windows.corp.XXX.com:749
}

[appdefaults]
pam = {
ticket_lifetime = 1d
renew_lifetime = 1d
forwardable = true
proxiable = false
retain_after_close = false
minimum_uid = 0
debug = false
}

[domain_realm]
.windows.corp.XXX.com = WINDOWS.CORP.XXX.COM
windows.corp.XXX.com = WINDOWS.CORP.XXX.COM

[login]
krb4_convert = true
krb4_get_tickets = false


On Mon, Nov 30, 2015 at 2:43 PM, Rowland Penny <rowlandpenny241155 at gmail.com
> wrote:

> On 30/11/15 20:30, Jonathan S. Fisher wrote:
>
>> Same results with that command. And the same DNS query occurred
>>
>> On Mon, Nov 30, 2015 at 2:20 PM, Rowland Penny <
>> rowlandpenny241155 at gmail.com <mailto:rowlandpenny241155 at gmail.com>>
>> wrote:
>>
>>     On 30/11/15 20:01, Jonathan S. Fisher wrote:
>>
>>         Hey guys,
>>
>>         I've successfully joined the domain with "sudo net ads join
>>         -k". However,
>>         when I try to run this: "sudo net rpc info" I get this error:
>>         "Unable to
>>         find a suitable server for domain WINDOWS"
>>
>>         I dumped the DNS requests and it looks like the problem is
>>         that it's asking
>>         for ldap entries under the workgroup name, not the FQDN:
>>
>>          From Wireshark:
>>
>>         Queries
>>         _ldap._tcp.pdc._msdcs.WINDOWS: type SRV, class IN
>>         Name: _ldap._tcp.pdc._msdcs.WINDOWS
>>
>>         Ok great, so if I dig that with the command: "dig
>>         _ldap._tcp.pdc._msdcs.WINDOWS"  dig times out. If I dig the
>>         FQDN: "dig
>>         _ldap._tcp.pdc._msdcs.WINDOWS.CORP.XXX.COM
>>         <http://msdcs.WINDOWS.CORP.XXX.COM>" I get a response instantly.
>>
>>         Is this a problem with my windows domain controller (how do I
>>         make it
>>         respond to those queries)? Or is this a problem with my samba
>>         setup?
>>
>>         Samba version:  4.2.5-SerNet-Ubuntu-8.trusty
>>
>>         Here is my smb.conf:
>>
>>         [global]
>>         security=ads
>>         realm=WINDOWS.CORP.XXX.COM <http://WINDOWS.CORP.XXX.COM>
>>
>>         workgroup=WINDOWS
>>         domain master=no
>>         local master=no
>>         preferred master=no
>>         load printers=no
>>         printing=bsd
>>         printcap name=/dev/null
>>         disable spoolss=yes
>>         idmap backend=tdb
>>         idmap uid=10000-99999
>>         idmap gid=10000-99999
>>         winbind enum users=yes
>>         winbind enum groups=yes
>>         winbind use default domain=yes
>>         winbind nested groups=yes
>>         winbind refresh tickets=yes
>>         winbind offline logon=yes
>>         template shell=/bin/false
>>         client use spnego=yes
>>         client ntlmv2 auth=yes
>>         encrypt passwords=yes
>>         restrict anonymous=2
>>         log file=/var/log/samba/samba.log
>>         log level=2
>>         dcerpc endpoint servers=remote
>>         wins support=no
>>
>>
>>     Try it like this: sudo net rpc info -UAdministrator
>>
>>     Rowland
>>
>>
>>
> OK, what have you got in /etc/resolv.conf & /etc/krb5.conf
>
>
> Rowland
>
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