How do I change the hostname returned by a reverse DNS lookup?
I am trying to change the value that a reverse DNS lookup returns for my linode site (https://dnschecker.org/reverse-dns.php). I changed the /etc/hosts file from this
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
45.79.19.71 linwebdev.oldDomain.com linwebdev
to this
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
45.79.19.71 linwebdev.newDomain.com linwebdev.
I ran hostnamectl set-hostname
newDomain.com and /etc/init.d/network restart. Now I can run hostname and get newDomain.com (even after rebooting) which is great. But the DNS lookup still returns oldDomain.com. I cannot find any setting to change for this on linode's website. What am I missing? How can I get the reverse DNS to return newDomain.com?
2 Replies
jackley
Linode Staff
Hey there @j_stin! Have you taken a look at our Reverse DNS guide? It should lay out all of the steps you need to take to get reverse DNS working:
https://www.linode.com/docs/networking/dns/configure-your-linode-for-reverse-dns/
Once you have a valid A record for linwebdev.newDomain.com, you should be able to set up reverse DNS.
Hope this helps!
