Hi,

Anyone Kindly help.

I'm configuring samba AD and DC on centos 7. I tried as per instructions on web. While configuring i'm receiving the below error and also not able to join the administrator

ERROR:
[root@corp ~]# host -t SRV _kerberos.udp.XXXXX.com.
Host _kerberos.udp.XXXXX.com. not found: 3(NXDOMAIN)
[root@corp ~]#

Read the "Question Guidelines" link in my posting signature. Without details, there is little we can do to help...saying "instructions on web" doesn't tell us much, nor what your actual goal is. You mention Kerberos, but don't say if you've got that configured on Linux or are using another realm. Post details.

Try with "dig -t" instead of "host -t" - you'll get more output including the server it queried for the answer.

If this error occurred on the server you put the DC on then it may be something as simple as adding localhost (127.0.0.1) to the /etc/resolv.conf.

You might be missing _ before udp.
Try like: $ host -t SRV _kerberos._udp.samdom.example.com.
_kerberos._udp.samdom.example.com has SRV record 0 100 88 dc1.samdom.example.com.

I found that, without knowing anything about this, using the basic 'soft skill'
of web-searching: "host -t srv" AD

As an example of my 'soft skill', I didn't know what the underscore does.
So, I web-searched: "host -t srv" ad underscore needed
and found: http://www.rjsystems.nl/en/2100-dns-...y-kerberos.php

Do you now see how useful web-searching can be?
You can also search: "soft skills" for IT|ICT
and spend considerable time studying 'soft skills'.

Best wishes.