RHEL Based

How To Hide Nginx Server Header

In this tutorial, we will show you how to hide Nginx Server Header on your Linux server. In default Nginx configuration, the server sends HTTP Header with the information of the Nginx version number of the Server. The HTTP response header “Server” displays the version number of the server. This information can be used to try to exploit any vulnerabilities in the Nginx, especially if you are ...

Linux and Unix TAR Command

terminal-linux-logo

In this tutorial, we will show you various Linux and Unix Tar command examples that might be helping you. For those of you who didn’t know, The tar command is used to rip a collection of files and directories into highly compressed archive files commonly called tarball or tar, gzip and bzip in Linux. The tar is the most widely used command to create compressed archive files and that can be mov...

How To Install Rar/Unrar on CentOS

centos-logo

In this tutorial, we will show you how to install and configuration of rar/unrar on your CentOS system. For those of you who didn’t know, RAR is the most popular tool for creating and extracting compressed archive (.rar) files, but unfortunately, rar tool doesn’t pre-installed under Linux systems, we need to install it using third-party tools to open, extract, uncompress or unrar archive fil...

How To Install FFmpeg and FFmpeg-PHP Extension on CentOS

centos-logo

In this tutorial, we will show you how to install FFmpeg and FFmpeg-PHP extension on CentOS. For those of you who didn’t know, FFmpeg is a cross-platform solution for streaming audio and video as well as recording and conversion. There’s also a great PHP package called FFmpeg-PHP that allows for easy use of FFmpeg from inside PHP scripts. In this tutorial, I will show you the easy way to ins...

How To Install and Configure Squid 3 on CentOS

centos-logo

In this tutorial, we will show you how to install and configure Squid 3 on CentOS. For those of you who didn’t know, Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Squid proxy is used by various organizations and internet providers to reduce bandwidth and to increase response time. This article assumes you have at least basic knowledge of Linux, know how to use th...

How To Increase PHP Memory Limit

php-logo

In this tutorial, we will show you how to increase the PHP memory limit on a Linux server. If you have seen an error like ”Fatal Error: PHP Allowed Memory Size Exhausted” in webserver logs or your browser, this means that PHP has exhausted the maximum memory limit. This tutorial will show two different ways how you can increase the PHP memory limit. This article assumes you have at least ba...

How To Install Varnish Cache on CentOS

centos-logo

In this tutorial, we will show you how to install Varnish Cache on CentOS. For those of you who didn’t know, Varnish is an open-source reverse HTTP proxy, an HTTP accelerator, and a useful tool for speeding up an Apache server. The varnish is also known as front-end web caching software that you put in front of an Apache webserver to speed it up. It makes your website really fast and accelerat...

How To Reset Root Password MySQL Server

Install MySQL Server on Ubuntu 16.04

In this tutorial, we will show you how to reset the root password MySQL server. By default, the MySQL server will be installed with the root account and the password is blank. Have you ever forgotten the root password on one of your MySQL servers? If you have set the password for root and forget it, then you will need to reset the root password for MySQL. To reset your MySQL password just follow...

How To Enable Slow Query Log for MySQL

Install MySQL Server on Ubuntu 16.04

In this tutorial, we will show you how to enable a slow query log for MySQL on Linux systems. MySQL has built-in functionality that allows you to log SQL queries to a file, You can enable the full SQL query logs to a file or only slow running queries log. It is easy for us to troubleshoot/ debug the SQL statement if SQL queries log enable, The slow query log is used to find queries that take a l...

How To Backup and Restore MySQL Database Using Command Line

Install MySQL Server on Ubuntu 16.04

In this tutorial, we will show you how to backup and restore the MySQL database using Command-Line. For those of you who didn’t know, MySQL is an open-source database developed by Oracle whereas MariaDB is a fork of it that works similarly and uses the same command line as MySQL. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, ...