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Setting Up Logrotate on RedHat Linux

1. Introduction Logrotate is a utility designed for administrators who manage servers producing a high volume of log files to help them save some disk space as well as to avoid a potential risk...

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Tips to Speed Up your PHP Website/Application

Your website acts as a communication interface between your office/organization and your customers/visitors/users. Slow loading websites causes users to close the webpage. Slow speed websites are used in google ranking algorithms . So here...

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How to encrypt a partition with Cryptoloop on Linux

1. Introduction This article will describe how to encrypt entire partition with a Cryptoloop. Cryptoloop is a disk encryption module for Linux. It was first introduced in the 2.5.x kernel series. Cryptoloop has an ability...

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How To Configure Network Bonding on Debian

Bonding This article will show how to “bond” two Ethernet connections together to create an auto failover interface. Installation First install the ifenslave-2.6 package, necessary to enable bonding: apt-get install ifenslave-2.6 Shutdown / Unconfigure Existing Interfaces...

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Using OpenSSL to encrypt messages and files on Linux

1. Introduction OpenSSL is a powerful cryptography toolkit. Many of us have already used OpenSSL for creating RSA Private Keys or CSR (Certificate Signing Request). However, did you know that you can use OpenSSL to...

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Getting Started with Varnish

Caching is everywhere. A request from your browser to its destination will pass a cache at almost every node. Your browser has a cache, most web proxy servers cache requests, and web servers like...

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PostgreSQL How to export table data to file / csv

PostgreSQL comes with an easy to use export tool to export data from PostgreSQL database. In this tutorial, we show you how to export data from PostgreSQL to a file or csv file. 1....

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25 Best SSH Commands and Tricks

OpenSSH is a FREE version of the SSH connectivity tools that technical users of the Internet rely on. Users of telnet, rlogin, and ftp may not realize that their password is transmitted across the...