Category Archives: Linux

This brief article will describe the creation of a proper ISO image from a CD or DVD. If an ISO image has been created with the help of the dd (diskdump) command from a CD or DVD then the ISO file created thereby may have an MD5 checksum, which is different than the original ISO […]

How do I find the largest top files and directories on a Linux or Unix-like operating systems? Sometimes it is necessary to know what file(s) or directories are eating up all your disk space. Further, it may be required to find out it at the particular directory location on filesystem such as /tmp/ or /var/ […]

It could be that you are getting the following error when instaling new packages on Linux: perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = “en_US:”, LC_ALL = (unset), LC_CTYPE = “UTF-8”, LONG = “en_US. UTF-8” are supported and installed on your system. perl: warning: Falling back to a […]

With this manual you can keep track of the active data traffic of your Linux server/machine in a visual way. Some tools keep track of data traffic per process, so you can easily see which protocol is using excessive data traffic. 1. NLOAD Nload is a command-line tool that allows you to keep track of […]

Theory MySQL Training/Certification MySQL offers various trainings, some of them can also completed with a certification exam. These is short list of possibilities: MySQL for Database Administrators (CMDBA) MySQL for Developers (CMDEV) MySQL Cluster Database Administrator (CMCDBA) MySQL Performance Tuning All information on trainings can be found here: http://www.mysql.com/training Literature MySQL Performance Blog von Percona […]

Introduction Internet Protocol version 6 (IPv6) is the latest version of the Internet Protocol (IP). It was designed to solve the long anticipated exhaustion of IPv4 addresses by using addresses consisting of 128 bytes instead of the traditional 32-byte IPv4. This guides explains how to configure IPv6 addresses in our infrastructures. Prerequisites: An ServerMeister VPS […]

Login to SSH and go to /var/www (a preventive measure so that you do not run any wrong command without mentioning the path, which is not related to these commands. i.e. chown, chgrp etc.) Vim # disable the working symlinked stuffs sudo a2dismod pagespeed sudo service apache2 restart # turn off nano /etc/apache2/mods-available/pagespeed.conf # edit […]

Goal of a Secure Erase According to the ATA specification, a secure erase should guarantee the secure erasure of all stored data on a storage medium. Most SSDs support secure erase, executing it for the physical deletion of all blocks on the SSD. The SSD will then be usable at its original ideal performance level, […]

This guide will explain how to log in to your VPS. This connection will allow you to install new software on your server, to perform updates, and to configure some settings. All Linux distributions allow command line access. The Plesk, cPanel and DirectAdmin distributions also offer a web interface dedicated to configuring certain services. The […]