Discussion:
Reverse lookup response format
(too old to reply)
Brad Stevenson
2020-08-25 14:29:19 UTC
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Hello, I apologize if this has been discussed before. I tried to search the
archives but couldn’t find anything.



I would like to have the behavior of the reverse lookup responses to only
include the hostname, not the hostname with the reverse zone appended. So
for example:

# nslookup 192.168.2.206

206.2.168.192.in-addr.arpa name = server1.ctois.local



Instead of the way it is now:

# nslookup 192.168.2.206

206.2.168.192.in-addr.arpa name =
server1.ctois.local.2.168.192.in-addr.arpa.



Is this possible? Thanks in advance.
Warren Kumari
2020-08-25 14:56:16 UTC
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On Tue, Aug 25, 2020 at 10:30 AM Brad Stevenson
Hello, I apologize if this has been discussed before. I tried to search the archives but couldn’t find anything.
# nslookup 192.168.2.206
206.2.168.192.in-addr.arpa name = server1.ctois.local
# nslookup 192.168.2.206
206.2.168.192.in-addr.arpa name = server1.ctois.local.2.168.192.in-addr.arpa.
Is this possible? Thanks in advance.
Yup -- you just need a period ('.') at the end of the name --
presumably in the zone file you have server1.ctois.local - that needs
to be server1.ctois.local. (without the period the server doesn't
know that the name is fully qualified and adds the zone name...

W
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tale
2020-08-25 14:56:55 UTC
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Post by Brad Stevenson
# nslookup 192.168.2.206
206.2.168.192.in-addr.arpa name = server1.ctois.local.2.168.192.in-addr.arpa.
In your zone file be sure that the name that is the target of the PTR
records has a final dot. Without the trailing dot, the names are
interpreted as relative to the current origin.
Anand Buddhdev
2020-08-25 14:58:59 UTC
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On 25/08/2020 16:29, Brad Stevenson wrote:

Hi Brad,
Post by Brad Stevenson
I would like to have the behavior of the reverse lookup responses to only
include the hostname, not the hostname with the reverse zone appended. So
# nslookup 192.168.2.206
206.2.168.192.in-addr.arpa name = server1.ctois.local
In your zone file, append a dot to the server name, like this:

server1.ctois.local.

Regards,
Anand

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