How To Make monit Send SMS Alerts When Your Server Goes Down

This tutorial explains how you can configure monit to send alert messages per SMS to your mobile phone when a service fails. Because monit can send only emails but not SMS, we will use an email-to-sms gateway where monit will send its emails to, and the email-to-sms gateway will convert the emails to SMS messages.

How To Set Up A Cisco Lab On Linux (CentOS 5.2)

I recently decided to study for the Cisco CSSP certification. My main concern in the beginning was the fact that most of the lab simulation software that I found out there could only run on Windows, this was a problem for me given the fact that I do not own a windows computer. After a quick search I found the wonderful Dynamips project that goes beyond what other simulators do by running actual Cisco IOS images, as well as the PEMU project which allows for running of Cisco PIX images. To integrate the various pieces of software and provide an interface for interaction with the devices I used dynagen.

A Simple Mailserver On Arch Linux (Postfix + Dovecot)

This tutorial describes how to install a complete mailserver using Postfix and Dovecot on an Arch Linux machine or VPS. This specific tutorial is based on my 256MB VPS. Basic linux knowledge is required as I'm not describing every step in detail.

How To Secure Postgresql Using Two-Factor Authentication From WiKID

Databases are the key repository for critical data.  If you are storing information that needs to be kept secure from prying eyes, especially credit card or personally identifiable information (PII) you might be required to control access using two-factor authentication.  This tutorial demonstrates how to secure Postgresql with two-factor authentication from WiKID.

How To Reduce Log File Disk Usage With ISPConfig Or LAMP

Slowly I was seeing my disk usage increasing, I knew it was log files that were getting bigger and bigger. I found out that Apache log files were the worst, there was around 1GB of space used in 3 months.

How To Set Up A Shockvoice Server On Linux Using Mono

This is a step-by-step instruction on how to install Shockvoice on a Linux machine. Shockvoice is a voice-over-ip communication tool. This tool is slightly different in its features. It's simply coded in C# and therefore runs on almost any platform of interest, be it Windows, Unix, Macintosh or Solaris. The client will only be available for Windows in the beginning.

Some Tips To Make SSH/SCP Usage More Convenient

I guess many of us rely heavily on ssh/scp to access/maintain remote hosts. In this short article I would like to share some experiences I find useful for ssh/scp usage.

Redundant Array Of Inexpensive Disks (RAID) - Technical Paper

The storage capacity and data retrieval speeds of Hard Disks have increased multiple folds in last few years. However for large business organizations, which not only need to store terabytes of invaluable data but access them frequently as well. These organizations cannot afford to let their systems go offline even for a short duration of time. Moreover they cannot even think of loosing even small amount of data due to disk failure or for that matter any other reason.

Changing The Language & Keyboard Layout On Various Distributions

This document describes how to reconfigure the default language and the keyboard layout on various distributions so that they suit your location. I made this howto for our VMware images where the keyboard layout is always set to German and a few users have problems to configure the language and keyboard layout on these images.

How To Add Users To Linux OS From A Text file

This tutorial is about a bash script to add, delete and verify the users either from a text file; it can also add, delete and modify the users manually. This script can be used to add , delete and verify the users to the Linux OS by fetching the user's information from any text file and this script can also add, delete or verify the users manually, I have put both of these functions in one script file. The text file can be specified by the administrator.