Setup apache for a multi user shared hosting environment

Basic setup of a multi user hosting environment on Ubuntu or Debian.
This is a very simple, minimal and safe setup which allows users to have their own web sites hosted in a central web server. The main advantage of this method is that it is very secure.

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Create a FTP user access (proftpd)

The following article describes how to create FTP users with bash function disabled and how to lock browsing outside there restriction.
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How to add PPA with add-apt-repository in debian

 Getting add-apt-repository on your Debian (debian Squeeze , mint Flavoured)

At this point the work that this script performs is:

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How to Clone a SD Card on Linux

The following article describes how to use the DD command to make a raw copy of your SD card or Media Disk

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How to create a CPU spike with a bash command

Generate CPU spikes near to 100% load on a Linux machine. You can ran the following command in bash:

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How to disable webdavauth in “Own Cloud”

Whenever trying to create a new user, you get a message saying “The username is already being used”. The usual cause for this is that a authentication app is enabled; e.g. the “WebDAV user backend”.

If you can live without the interfering authentication app, just disable it.

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How to find DNS Time to Live (TTL) Values using dig

TTL for Specific Host

The dig(1) command is a handy DNS information and troubleshooting tool. It can be used to grab a host or domain’s TTL (time to live) values.

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How to Fix Error sudo: add-apt-repository: command not found

Whenever you get the error “add-apt-repository: command not found” when  adding  a PPA  you can follow the instructions below to fix the error

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How to setup a mail server using Postfix, Dovecot and Sasl in Debian 6 (Squeeze)

The following article aims into installing and configuring a simple POP3/IMAP/SMTP mail server with virtual users in your

Debian using Postfix, Dovecot and SASL.

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How to test internet bandwidth in Linux Terminal (cli)

Want to test your internet bandwidth without opening web browser? Well, here’s command line tool to do this using speedtest.net. This may be help on Linux servers that doesn’t have a GUI. The tool is based on Python 2.4-3.3 To install the tool, speedtest-cli:

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