Clear DNS cache in Linux

In Linux, clear the DNS cache-Linux general technology-Linux technology and application information. for details, refer to the following section. Some Linux versions run the domain name resolution cache service in the background, and some versions do not have this service. for example, your Ubuntu system has this program in the background, then you can restart the nscd service to clear the DNS cache.

To clear the DNS cache in Ubuntu, restart the nscd daemon and execute:

Sudo aptitude install nscd

Run the following command to install nscd and clear the DNS cache:

Sudo/etc/init. d/nscd restart

You can.