How To Get A Reverse DNS Lookup On The Command Line

Author: , September 1st, 2021

There are three commands in Linux to easily get a reverse DNS lookup with: dig, host and nslookup. Here are examples of each: shell> dig -x 3.214.2.238 +short

shell> dig -x 3.214.2.238

shell> host 3.214.2.238

shell> nslookup 3.214.2.238

DNS Cache Poisoning

Author: , May 3rd, 2010

Ran into an odd problem this morning on my Verio server. Was unable to get DNS resolution on either downloads.wordpress.org or akismet.com. I was able to get DNS resolution on both my home systems and the ICI servers. That meant that the issue was specific to Verio. I called them. I was disconnected before i […]