If you are a system administrator and responsible for securing your infrastructure, you may often need to block the IP address of the hosts that are trying to breach your security. In order to block an IP address on your Linux server, you will need to use Iptables and UFW firewall. In this tutorial, we will show you how to block an IP address using Iptables and UFW firewall. Continue Read
There are several reasons you may need to clone your hard disk or partition. With cloned hard disk, you don't need to reinstall and configure the applications again. dd is a simple and powerful tool for a Linux-based operating system used to create a perfect copy of drives, partitions, and filesystems. With dd command, you can backup the boot sector of a hard disk and also obtaining a fixed amount of random data. Continue Read
Resizing or extending a partition is the process of increasing or decreasing the size of the partition. You can either extend or shrink the partition as per your needs. You will need to resize the partition when you are not satisfied with the partition size, your system partition is running out of free space, some partition is full while some partition still has large free space If you are a system administrator and working on the Linux system, resizing or growing the filesystem is a challenging task for you. You will need to resize an existing partition when your partition size is full. In that case, you can use resize2fs utility to increase and decrease a filesystem size. The resize2fs is a command-line utility that allows you to resize ext2, ext3, or ext4 file systems. Continue Read