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…
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…
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….
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…
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…
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…
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 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…
Guard Your Network with IPCop, Part 3: Block Outgoing Traffic
The first article in the series discussed IPCop 1.4.21, its basic installation and configuration. Though an excellent firewall distro, basic IPCop has limited functionality. To enhance it, various add-ons are available. We covered…
Top 10 Security Assessment Tools
Modern data centres deploy firewalls and managed networking components, but still feel insecure because of crackers. Hence, there is a crucial need for tools that accurately assess network vulnerability. This article brings you…
May 21, 2013
JKR — More efficient? Probably. More readable? Definitely not.
May 21, 2013
Prashanth Joshi — The author assumes that the first article being introductory in nature is for the beginners. So there is no question...
May 21, 2013
Peter — Hi I followed the steps but on bootup of qemu it hangs at "Stopping configure virtual network devices, waiting for...
May 20, 2013
Aseem — can u just elaborate this part "edit the output file to include only the hash value. (It should only include...
May 19, 2013
raghu ram — Hi Anil, Your articles are awesome Please give some tutorials on PCI Sound Card drivers using ALSA.
