Example Security Exercises | Linux Journal
The following is a list of security exercises you can try after reading Susan Sons' article "Security Exercises". 1) It's Gone Pick a system, any system. Think of a reason why it's completely hosed—failure of the entire RAID array, fire in the data center, evil script kiddies, sysadmin mistake—and see how your team copes. Some questions to ask when all is done: If you don't have another of these s
Linux Graphics News | Linux Journal
X.org The X.org Developer's Conference was held in Portland this September, providing a venue to discuss a range of topics relating to OpenGL, drivers, the X server, Wayland and Mir. Core X.org development has been in a bit of a lull, evidenced by the fact that there wasn't enough change to warrant a near-term 1.15 release of the server, but this is more than made up by increased progress made in
Linux Kernel News - July 2013 | Linux Journal
The Linux kernel community is busy integrating and testing 3.11 content, working on 3.12 development, and finalizing the topic agenda for the upcoming Linux Conference Europe and Kernel Summit that are scheduled to be held in Edinburgh, UK from October 21-23 2013. Let's start with the release news. Mainline Release (Linus's tree) News Since my last report, 3.10 has been released and 3.11 is now at
Lock-Free Multi-Producer Multi-Consumer Queue on Ring Buffer | Linux Journal
Nowadays, high-performance server software (for example, the HTTP accelerator) in most cases runs on multicore machines. Modern hardware could provide 32, 64 or more CPU cores. In such highly concurrent environments, lock contention sometimes hurts overall system performance more than data copying, context switches and so on. Thus, moving the hottest data structures from a locked to a lock-free de
ConVirt: the New Tool in Your Virtual Toolbox | Linux Journal
Virtualization is now a staple of the modern enterprise. As more and more shops switch to the virtual paradigm, managing those new virtual resources is a critical part of any deployment. For admins using Microsoft- or VMware-based hypervisors, powerful management tools are available to keep their virtual houses in order. Unfortunately, those products and their accompanying tools come with a hefty
Wi-Fi Mini Honeypot | Linux Journal
Do you have an old, unused wireless router collecting dust? Have some fun and make a Wi-Fi honeypot with it! Recently, I've been playing with some new wireless gear. It's nothing special: 200mW Atheros-based transceiver and 18dBi yagi antenna. I'm living in an apartment in a city of about 640,000 people. I've pointed the antenna to a window and passively received about 30 wireless ESSIDs, three of
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