Debian Jessie NS LOOKUP ip

Question

When i use command

nslookup 192.168.1.1 or (my real ip address)

back this:

1.1.168.192.in-addr.arpa   name = 1.1.168.192-my-net.net

I want to change name with my website example

1.1.168.192.in-addr.arpa    name = www.example.com

How to do this? Thank you!

score 0 · Answer 1 · edited Apr 13 '17 at 12:14

0

in-addr.arpa is special domain name to get full qualified domain name of host from ip address. This is called reverse DNS lookup.

You need to assign new DNS zone 1.168.192.in-addr.arpa on your DNS server. Then you can add PTR record 1 PTR full.your.host.name in file of this zone.

You can see an example of such zone at https://serverfault.com/questions/462474/how-do-i-set-up-a-reverse-zone-file

Also another way exists. Add string 192.168.1.1 full.your.host.name to file /etc/hosts on your workstation.

edited Apr 13 '17 at 12:14

Community

1

answered Mar 11 '17 at 18:29

Mikhail Khirgiy

2,073
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i have add my.real.ip.addr mydomain.com, in /etc/hosts but name it's not change for the ip address – Keepd Mar 12 '17 at 06:37
Your ip address isn't real, add it as real with same hostname. – Mikhail Khirgiy Mar 12 '17 at 08:47
The ip address in post (192.168.1.1) it's example, not ip address who i use. I have bind9 dns server. Do you tell me particularly how to add ptr record? Thank you! – Keepd Mar 12 '17 at 09:23
I updated my answer. – Mikhail Khirgiy Mar 12 '17 at 09:40

score 0 · Answer 2 · answered Mar 11 '17 at 20:36

Why do you want to do that? If it is for a 192.168.x.y it means a private IP on your network so it will depend on how you run your local recursive nameservers (and you will need to do basically what is in Mikhail answer).

If it is for a public IP (what you call the real ip ?) you will need to ask the owner of the IP block in which your IP is, so that he will either, do the reverse resolution for you, or delegate this handling to your nameservers if you have more than one IP address from them and you want to handle the reverse resolution yourself. Hard to help you more without knowing the real IP we are speaking about.

I want to do this, because this host my.real.ip.my-net.net it's confuse my mail server. — Keepd, Mar 12 '17 at 06:38

Debian Jessie NS LOOKUP ip

2 Answers2