Charly's Column The Sysadmin’s Daily Grind: smap

Jul 09, 2008

On a trip to Berlin, Charly discovers that the nmap port scanner has a new cousin who enjoys spying on phones – smap scans networks for VoIP devices.

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Thin Client Specialist Neoware Acquired by HP

Oct 09, 2007

Hewlett-Packard has now completed the acquisition of Neoware. The thin client computing and virtualization solution provider will add value to HP's Linux portfolio.

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Charly's Column The Sysadmin’s Daily Grind: Arpalert

Dec 01, 2006

Corporate policies prohibit the unauthorized connection of hardware to the company network, threatening dire consequences in the case of non-compliance. Fair enough, but how do you actually go about catching somebody trying to plug an illegal laptop into your Ethernet?

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Squid Bridge HTTP proxy with caching and content filtering on a bridge

Nov 01, 2006

Caching proxies remember web pages and serve them up locally, saving both money and time. The most intelligent members of this family also remove dangerous content and provide transparent bridging.

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Charly's Column TUNNELING THE DUTCH BEACHES

Oct 01, 2006

What does Charly’s recent two-week vacation in Holland have in common with an SSH session? Nothing at all, at first sight. And therein lies a tale.

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BOINC Building distributed applications with BOINC

Oct 01, 2006

Grid computing lets little PCs work on big problems. You can use the grid system of the famous SETI@home project to build your own grid computing solutions.

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Hotplug Hacks Intro Extending the Linux hotplug system

Oct 01, 2006

Hotplugging is invisible and automatic – if you want it to be. But a close look at the Linux hotplug system reveals interesting opportunities for customization.

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Ivman Building in hotplug with Ivman

Oct 01, 2006

Better knowledge of the Linux hotplug system opens the door to to innovation and automation. We’ll show you a custom backup solution for laptop computers.

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