Category: Tips & Tricks

screen command with examples

Learn to use Screen command (with examples)

Screen command is a very important command that provides the ability to launch & use multiple shell sessions from a single ssh session.  When a process is started with ‘screen’, we can detach that...

Linux Directory structure

Reference guide to Linux Directory structure

When we install a Linux distribution we see that a number of directories are created. These created directories may be same or partially different on various Linux distributions. You might know about the directory...

MySQL error “Too Many Connections”

Resolve MySQL error “Too Many Connections”

Recently I came across a MySQL error “Too Many Connections”. Though this was a first for me but as I came to know afterwards, it is a pretty common error in MySQL. The solution...

nmcli

Managing network connections using IFCONFIG & NMCLI commands

Earlier we have discussed how we can configure network connections using three different methods i.e. by editing network interface file, by using GUI & by using nmtui command (READ ARTICLE HERE). In this tutorial,...

du & df commands

Use of du & df commands (with examples)

In this article I will discuss du & df commands. Both du & df commands are important utilities of Linux system & shows disk usage of Linux filesystem. Here we will share usage of...

nmap command

Beginner’s reference guide to NMAP command

Network Mapper or NMAP command open source security tool & is said to be the best port scanner. It is mainly used for auditing the network security & for penetration testing. Nmap command displays...

speedtest on Linux CLI

SpeedTest-CLI: Run network speedtest on Linux CLI

Performing network speedtest on servers or on desktops are one of the common tasks that are performed almost on regular basis. Most of the speed tests require a GUI to run but what about...

install sysbench

Benchmark your Linux systems: Install Sysbench tool

Sysbench is a free & open source benchmarking tool that is used for evaluation OS parameters like CPU usage, memory usage, Disk IO & MySQL performance. Especially it becomes extremely important to benchmark these...

user & group management

User & Group management : Complete Beginner’s Guide

One of the major work of a System Administrator is User & Group Management. We have to create new users & groups, delete old ones, providing users access to a group or folder etc etc....

install kodi

Convert your PC to entertainment center : Install Kodi on Ubuntu & Debian

If you are movie or TV lover, than you should already know what KODI is. For those of you who still don’t know about Kodi, it is an open source media center for playing...

upgrade php

How to install or upgrade PHP version to PHP 7

PHP (Hypertext Preprocessor) is a widely used open source scripting language that is used mainly for web development. It is used generally for creating dynamic web pages or for dynamic images on websites. In...

wget command

Learn to use Wget command with 12 examples

Every now & then we have to download files from internet, its easy id you are using GUI but CLI it can be a bit difficult. WGET command makes it easy for us to...

install logrotate

Install Logrotate in Linux (CentOS, RHEL, Fedora, Ubuntu, Debian)

Logs are very useful, especially when you are troubleshooting an issue. Logs have information about all the events for a service or for whole server. We have all kinds of logs for the servers...

mounting drives on linux

Complete guide for mounting drives in Linux systems

In this tutorial, we are going to discuss how we can mount drives on Linux (especially on RHEL/CentOS ) using command line interface. So without any delays, let’s start …. (Recommended Read: Creating SWAP...

fsck command with examples

Check Linux filesystem for errors: FSCK command with examples

FSCK is a very important Linux/Unix utility, it is used to check & repair the errors in the file system. It is similar to ‘chkdsk’ utility in Windows operating systems. It is available for...

scp & rsync commands

Files transfer using scp & rsync commands

Hello Linux-fanatics, in this tutorial we will discuss how to transfer files among system using scp & rsync with some examples. (also read tutorial on “Cloning disks using dd & cat commands“). But firstly let’s...