arping can be a very handy tool when your main task is to migrate IP addresses across servers. When we migrate IP addresses, the switch or the networking device will cache the information and switch the packets to the old server, and thereby keeping the IP in the new server down.
Normally in all servers, the outbound connections from a server will be originating from the primary IP of the server. This is the case in a cPanel server as well. So if an IP is blacklisted, or blocked, some where we may need to change the primary IP address of the server. If we are changing the network range this is needed.
Gzip compression is a great tool by web servers with which we can cutdown the size of the pages sent out. In this topic I am discussing on how to enable gzip compression in Apache. Enabling compression means the web server will compress the size of the pages there by we can achieve better speed and low bandwidth usage.