Today we will learn How to Flush DNS in Windows, Linux, and Mac OS X. Error 404 Ill not found an error on your local machine. Other devices may open the same webpage. This means you need to flush the DNS’s cache to fix the 404 error. In this guide, we will show how you […]

Today we will learn how to block and unblock IP addresses in Linux. Want to block an abusive IP on your Linux server or is the server experiencing abuse attacks from a specific IP? Today, we will show you how we can block a specific IP address and block IPs on a specific port. This

Today we will learn about OpenVZ commands. Here is a list of some useful OpenVZ commands that should be run from the master node: – To fetch the disk cost with the hostname and ctid of each container on the node. vzlist -H -o veid,hostname,diskspace | awk ‘{ printf(“%d\t%s\t%.2f GB\n”, $1, $2, $3/(1024*1024))}’ – To

Today we will learn how to check server load average history. This is a guide on how to check your current and past server load (CPU load) for debugging purposes. System Activity Reporter (SAR) is an important tool used by system administrators to find out server load along with the status of various metrics at