Sysadmins

VANET Simulation Using FOSS

As the name suggests, VANET is a network wherein the nodes are vehicles equipped with on-board units (OBU) for networking. A VANET may also have Road-Side Units (RSU), which are static infrastructure nodes…

Sending Emails From Terminal Using Gmail Account

Linux terminal is one of the coolest tools I’ve ever come across. If you are also a fan of the terminal, and are a Gmail user, you should like this article. Note: I’ve…

Bandwidth Throttling with NetEM

Bandwidth Throttling with NetEM Network Emulation

NetEM (Network Emulation) provides functionality for testing protocols, by emulating the network properties of wide-area networks. This article describes the use of NetEM in benchmarking the performance of a Web application, simulating Internet-like…

The art of crafting

Cyber Attacks Explained: Packet Crafting

Protect your FOSS-based IT infrastructure from packet crafting by learning more about it. In the previous articles in this series, we explored common infrastructure vulnerability exploitation scenarios. This article takes a step forward…

Your First Site-to-Site VPN

Guard Your Network with IPCop, Part 5: Your First Site-to-Site VPN

The first article in this series discussed the basic installation and configuration of IPCop 1.4.21. Subsequent articles covered six important add-ons: Advanced Proxy, URL Filter, Update Accelerator, Calamaris, Block Outgoing Traffic and Zerina….

It's so big!

Impact of Big Data on Enterprise Integration

This article explains the new challenges in enterprise integration caused by the advent of big data, and presents some approaches to overcome them. Big data is the latest buzz-word in the industry. At…

About time we guarded this network!

Guard Your Network with IPCop, Part 4: Configuring OpenVPN with Zerina Add-on

The first article in this series discussed the basic installation and configuration of IPCop 1.4.21. Subsequent articles discussed five important add-ons used to enhance IPCop’s functionality: Advanced Proxy, URL Filter, Update Accelerator, Calamaris…

Web Exploitation

Cyber Attacks Explained: Web Exploitation

Websites are no longer merely about having an “Internet presence” today, but are also used for commercial transactions and to transfer sensitive data. Such wide usage helps crackers gain more knowledge on vulnerabilities…

SPEED!

Web Acceleration with Varnish 3.0

In this article we’ll setup a ready-to-deploy WordPress-compatible Varnish service as our HTTP reverse caching proxy, and have it cache the desktop and mobile themes separately. Our original WordPress recipe had a place…

Speed up your cloud

Speed up Your Cloud with Memcached

Is your website running into performance bottlenecks? Does the database or backend feel like a really expensive resource, even though you’ve got a huge cluster set up to improve parallel processing? Read on…

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