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Feature Articles

Need an in-depth introduction to a new security topic? Our features articles will bring up up-to-date on everything from buffer overflows to SE Linux policy development.

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Open Letter to the Linux Security Community


Welcome to the new LinuxSecurity.com! I must admit, I am really proud of what we have been able to accomplish over the years. LinuxSecurity.com has grown from a small idea that a couple of security geeks had in 1999, to a major and well respected Linux resource. With an all new look & feel, organizational changes, security events, and additions to our staff, we hope to better serve the Linux and open source community. Although there are many aesthetic improvements, a major part of our development has focused on creating a content structure and backend system that is easy to update.



Network security is continuing to be a big problem for companies and home users. The problem can be resolved with an accurate security analysis. In this article I show how to approach security using aide and chkrootkit.

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Mass deploying Osiris


Osiris is a centralized file-integrity program that uses a client/server architecture to check for changes on a system. A central server maintains the file-integrity database and configuration for a client and at a specified time, sends the configuration file over to the client, runs a scan and sends the results back to the server to compare any changes. Those changes are then sent via email, if configured, to a system admin or group of people. The communication is all done over an encrypted communication channel.

Linux and National Security


As the open source industry grows and becomes more widely accepted, the use of Linux as a secure operating system is becoming a prominent choice among corporations, educational institutions and government sectors. With national security concerns at an all time high, the question remains: Is Linux secure enough to successfully operate the government and military's most critical IT applications?

An Interview with Gary McGraw, Co-author of Exploiting Software: How to Break Code


Gary McGraw is perhaps best known for his groundbreaking work on securing software, having co-authored the classic Building Secure Software (Addison-Wesley, 2002). More recently, he has co-written with Greg Hoglund a companion volume, Exploiting Software, which details software security from the vantage point of the other side, the attacker. He has graciously agreed to share some of his insights with all of us at LinuxSecurity.com.

Catching up with Wietse Venema, creator of Postfix and TCP Wrapper


Wietse Venema is best known for the software TCP Wrapper, which is still widely used today and is included with almost all unix systems. Wietse is also the author of the Postfix mail system and the co-author of the very cool suite of utilities called The Coroner's Toolkit or "TCT". He is currently working at the Thomas J. Watson Research Center and he has gratiously agreed to allow us to catch up with him and and see what he's been up to lately.

Open Source Leaving Microsoft Sitting on the Fence?


The open source model, with special regard to Linux, has no doubt become a formidable competitor to the once sole giant of the software industry, Microsoft. It is expected when the market share of an industry leader becomes threatened, retaliation with new product or service offerings and marketing campaigns refuting the claims of the new found competition are inevitable. However, in the case of Microsoft, it seems they have not taken a solid or plausible position on the use of open source applications as an alternative to Windows.

Guardian Digital Launches Next Generation Secure Mail Suite


Guardian Digital, the premier open source security company, announced the availability of the next generation Secure Mail Suite, the industry's most secure open source corporate email system. This latest edition has been optimized to support the changing needs of enterprise and small business customers while continually providing protection from the latest in email security threats.

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