Buffer overflow attacks have been there for a long time. It still exists today partly because of programmers carelessness while writing a code. The reason I said ‘partly’ because sometimes a well written code can be exploited with buffer overflow attacks, as it also depends upon the dedication and intelligence level of the attacker.

The least we can do is to avoid writing bad code that gives a chance to even script kiddies to attack your program and exploit it.
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Uniq command is helpful to remove or detect duplicate entries in a file. This tutorial explains few most frequently used uniq command line options that you might find helpful.
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If you are running DELL servers, it is recommended to enable BIOS password. This is will prevent accidental changes done to DELL BIOS settings by others who get physical access to the server.
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AT commands are instructions that are used to control modems.

AT stands for ATTENTION.

These commands come from Hayes at commands that were used by the Hayes smart modems in 1980’s. Many modems today including dial-up, wireless, GSM/GPRS modems use these AT command set for communication.
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Date command is helpful to display date in several formats. It also allows you to set systems date and time.

This article explains few examples on how to use date command with practical examples.
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To connect to RabbitMQ message queue server, you can write your client program using various programming languages. Currently you can write client using C#, erlang, java, perl, PHP, python, and ruby.

This tutorial explains how to install and configure RabbitMQ client library and AMQP PHP extension.
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From an email client, you’ll typically compose a message, attach any necessary files, and send it to the recipient. But, have you wondered what happens behind the scenes? How the email is sent from your outbox to the recipients inbox?

In this article, we will explain the basis of email. For those who already know this stuff, this might be a quick refresher.
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