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The author is an IS auditor, network security consultant and trainer with 25+ of years industry experience. He is an industrial electronics engineer with CISA, CISSP and DCL certification. Please feel free to contact him at rajesh at omegasystems dot co dot in.

Posts by Rajesh Deodhar

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pfSense is an open source firewall, router and UTM (unified threat management) distribution based on FreeBSD. This is the third article in the series …

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This is the second article in series on pfSense. While the introductory article covered pfSense basics, here, readers are taken a step further in …

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pfsense.org has an interesting slogan: “We make network security easy.” With thousands of enterprises using pfSense software, it is rapidly becoming the world’s most …

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GNS3 is a software emulator for networks. The GNS3 website describes it as the ‘…software that empowers network professionals.’ This article provides the reader …

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It is the utilities that make computing easy and comfortable. This article on LAN tools describes a few useful and practical utilities Various open …

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In this article, the author demystifies the business of encrypting and decrypting network traffic, and translates arcane terms such as https, ssh, sftp, etc. …

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Wireshark, a free and open source tool, is a packet analyser. It is used for network troubleshooting,  software-analysis, protocol development, and education. In this …

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Here are a few simple tricks to improve Mozilla Firefox’s performance and privacy settings. You can also enjoy ads-free browsing Have you ever tried …

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This article addresses a very vexing problem that plagues most of us at some time or the other. Internet speeds are a bone of …

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The first two articles in the series on Wireshark, which appeared in the July and August 2014 issues of OSFY, covered a few simple …

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