Category: Tips & Tricks

install AWS CLI

Easy way to install AWS CLI on Linux

AWS or Amazon Web services is the industry leader when it comes to Cloud & it’s being used by many industry gaints for their IT infrastructure needs. Ease on infra provision & administration are...

Block Web traffic in Apache

Block Web traffic in Apache server using .htaccess

.htaccess file is a very important & useful file used to alter the configuration of Apache web server. .htaccess files can be used to change the configuration of the Apache Web Server to enable/disable...

Rollback an update

Rollback an update on RHEL/CentOS – A simple guide

Yum is default package manager for RPM based Linux distributions like RHEL, CentOS & is used to managing packages for the system. We can install, remove or update packages using the yum command. But...

ss command examples

Identify network issues :- Learn to use SS command (with examples)

SS command is used to get various network/socket connections related information from a Linux system. Previously we had used netstat command to perform the same operations but it has been long deprecated & was...

install kodi

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

If you are movie or TV lover, then 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...

Restore deleted files in Linux

How to restore deleted files in Linux with Foremost

It might have happened to you at one point or another that you deleted a file or an image by mistake & than regretted it immediately. So can we restore such a deleted file/image...

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....

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...