Can’t resolve hostname by ip address over nslookup [closed]

I’ve got an Ubuntu Server on my LAN.
I can fully use it (samba, ssh, apache2, xmpp…) by using it’s ip address.
But I want to use the hostname to connect (e.g. ssh). When I do a nslookup with the ip address of the server, the answer is: name = noname (which is NOT the server’s hostname 😉
Other hosts on the LAN are responding with the correct hostname.

Output of nslookup 10.0.0.24 (this is my ubuntu server): shows no hostname

Server:     127.0.1.1
Address:    127.0.1.1#53
24.0.0.10.in-addr.arpa  name = noname.

Output of nslookup 10.0.0.21 (this is my raspberryPi): shows the right hostname.

Server:     127.0.1.1
Address:    127.0.1.1#53
21.0.0.10.in-addr.arpa  name = retropie.

All hosts get their ip address over DHCP. So the hosts, who show their hostname correctly were never configured separately.

Answer

For such a small network and without the assumption that there is dns server on this network you can simply add the ip addresses to the local hosts file on each machine. I know this is a bit “old school” but it will be 100% solid and never fail.

The reason dns may failing is that your dhcp server may be providing dns settings for a dns server that either you do not control or one that does not get automatic updates from the dhcp system. If you add a static entry into your (dns server you control whose ip address is given out via dhcp) then you will get the correct nslookup from a cli from any machine on your network.

Attribution
Source : Link , Question Author : bastele , Answer Author : lms

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