How to convert IP addresses to hostname when there are many?

Question

Data conversion

Unloaded statistics from the ICS visits and for clarity, you need to convert the ip address into a host name.
For example, 95.142.201.67 in srv67-201.vkontakte.ru. There are many similar sites like these but you can enter only once.

Answer 1

Save to file and run through dig. For example, like this

for i in `cat ips.txt`; do echo "$i: `dig -x $i +short`"; done