In this tutorial, I will go through 8 dumpe2fs command examples to manage ext2, ext3 and ext4 filesystem in Linux. dumpe2fs is a very popular free and open source tool to check and manage the Linux based filesystems like ext2, ext3 and ext4. It can be used to check the detailed information of filesystems like ... Read more

In this tutorial, I will take you through 7 Simple Steps to Install MTR(My traceroute) on Linux(RHEL/CentOS 7/8). MTR is an open source command line Network diagnostic tool which has the functionality of both traceroute and ping command. It implements the functionality of both traceroute and ping command and has many added features over these ... Read more

In this article, I will take you through the steps to Install and Use i3 Window Manager on Ubuntu 20.04. i3 is a free and open source window tilling manager written in C language. It is mainly created for GUI Lovers and for those who likes to use shortcut keys a lot. It is very ... Read more

In this article, we will look into all the postfix mail server issues and the steps to resolve those issues. There are many errors one can get while trying to configure postfix MTA so it is very important to understand the cause and other underlying details of those errors before even try to fix the ... Read more

In this tutorial, I will take you through 25 Practical and Useful RPM Command Examples in Linux. An RPM is a special archive file that contains software packaged for installation on RHEL/CentOS based servers. Any software package required to be installed in RHEL/CentOS based server has to be an rpm package. To install an rpm ... Read more

If you are are programmer or developer then you might have felt or encountered the necessity to change time to epoch time using date utility in Linux or Unix Server. It is not very uncommon to use the epoch time in Linux or Unix friendly scripts or programs hence it is very important to understand ... Read more

In this article, I will take you through the steps to Install jq(JSON Processor) on RHEL/CentOS 7/8. If you are working with JSON then you might be aware of jq tool which is being used to query and process the JSON output on Linux Based Servers. jq is an open source tool available from EPEL ... Read more

In this article, I will take you through the steps to defragment an xfs filesystem in Linux. Before we go the defragmentation of an xfs filesystem it is very important to understand why we need to defragment a filesystem. You might have Known or heard about the problem of fragmentation in a filesystem which is ... Read more

In this article, I will take you through the steps to Install Arpwatch tool on RHEL/CentOS 7/8. Arpwatch is an open source tool used in the Linux Based Servers for keeping track of ethernet/ip address pairings along with the timestamp. It can be used to maintain a database of ethernet/ip address pairings. Arpwatch uses pcap ... Read more

In this article, I will show you how to use proxy server to update packages from YUM Repository in Linux. Many times we face a situation where Linux Server currently residing in a private network which does not have any access to public network or Internet needs to be updated from YUM Repository on a ... Read more