How to Setup Master Slave DNS Server on CentOS Server

By | 2018-08-28T20:26:57+00:00 May 18th, 2017|

In this tutorial we can check how to setup master slave DNS server on CentOS server. Domain Name System (DNS) is a distributed system that translates a domain name to IP address and vice versa.   Steps to Install DNS server Install required RPM packages on both Master and slave servers.  # yum install bind [...]

How to Install SpamAssassin, MailScanner, ClamAV in CentOS Mail server.

By | 2017-05-18T18:05:19+00:00 May 18th, 2017|

One of the most important things you can do for your mail server is install MailScanner. It will help detect incoming and outgoing spam. This will prevent your IP from getting blacklisted, keeping the server clean. Installing SpamAssassin and ClamAV will add another layer of defense against these issues.   Steps to install SpamAssassin, MailScanner, [...]

How to Install PHP IonCube Loader in CentOS and Ubuntu

By | 2017-04-16T21:41:50+00:00 April 16th, 2017|

IonCube loader is used for decoding encrypted PHP files. It is freely available and very easy to install. It handles both reading and execution of encoded files at run time. It also helps to speed up the websites.   Steps to install IonCube loader 1) First you need to install wget command for downloading applications. [...]

How to Install CloudLinux OS on CentOS Server with cPanel

By | 2017-03-04T00:25:27+00:00 March 4th, 2017|

In this tutorial, we can check how to install CloudLinux OS on CentOS Server with cPanel. CloudLinux CloudLinux was released to the market in 2010. Today, it is a must-have for any web host who cares about stability, security, and churn. It is used by more than 2,000 hosting companies on 20,000+ servers. It was [...]

How to migrate emails using IMAP Copy?

By | 2017-02-27T18:49:39+00:00 February 27th, 2017|

In this tutorial we can learn how to migrate emails using IMAP Copy. What is IMAP Copy IMAP Copy is a method used in website migration. To understand what IMAP Copy is, we need to know the steps that take place during a website migration. Let's see an overview of the website migration.   Steps [...]

Configure and Install Varnish on CentOS/Ubuntu.

By | 2017-02-27T18:48:20+00:00 February 27th, 2017|

In this tutorial we can check how to Configure and Install Varnish on CentOS/Ubuntu server. Varnish is the most powerful open source HTTP engine/reverse HTTP proxy that has the capability to increase the site speed, especially when there is high traffic on the site. Varnish Cache visits your page only once for caching the page and [...]

How to Install PowerDNS in WHM and CentOS?

By | 2017-02-01T17:37:44+00:00 February 1st, 2017|

PowerDNS is an open source DNS server software. It provides high performance with low memory requirements.   PowerDNS Nameserver There are two types of PowerDNS nameserver: 1) Authoritative: Authoritative servers will answer about the domains it knows, but it does not resolve the queries about other domains. 2) Recursor: Recursor has no knowledge of the [...]

Create and Install Self-Signed SSL Certificate on CentOS and Ubuntu

By | 2017-02-01T17:34:32+00:00 February 1st, 2017|

SSL certificate stands for Secure Socket Layer is used to establish a secure and encrypted connection between a browser and a server. SSL certificate is also known as digital certificate. The SSL connection protects sensitive data such us credit card information and authenticated passwords during each visit. When you purchase SSL certificate from a trusted-third [...]

Steps to Install Tomcat in CentOS

By | 2018-08-10T10:56:40+00:00 January 28th, 2017|

In this tutorial we can learn how to install Tomcat on a CentOS server.   Install JDK 1) Execute following to the command line for Install Java SE Development Kit (JDK7) and build Java Environment. $ curl -LO -H "Cookie: oraclelicense=accept-securebackup-cookie" \ "" 2) Install downloaded rpm package. $ rpm -Uvh jdk-7u75-linux-x64.rpm 3) Open /etc/profile [...]

How to Install Let’s Encrypt SSL Certificate on CentOS 6/7

By | 2016-12-23T12:17:49+00:00 December 23rd, 2016|

To install Let’s Encrypt SSL Certificate on CentOS 6/7, please follow the steps below.   1) Make sure that Apache Web Server is already installed in your server. If not, the use the command below to install it. $ yum install httpd 2) Install the SSL/TLS module. $ yum -y install mod_ssl 3) Start the [...]

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