How to: Check rDNS of an IP

An easy way to check the rDNS of an IP would be to use the online tools like mxtoolbox:
https://mxtoolbox.com/ReverseLookup.aspx

If you are a linux user, you may simply use the host command to find the rdns of an IP:

[root@localhost ~]# host 104.161.66.132
132.66.161.104.in-addr.arpa domain name pointer vps-ip-in-reverse.mellowhost.com.

  • rdns, how to, host
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