System Administration

Keeping the machine moving

Keeping the machine moving

GXP2020EXT Provision & Template

The Grandstream GXP2020EXT is an accessory “sidecar” (or in Grandstream-speak “Expansion Module”) that adds 56 speed dials with BLF to Grandstream model GXP20xx VoIP telephones. In the article below I’ve…

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Finding Malware URLs in W97M infected Word Docs

An email with a trojan Microsoft Word document made it past the spam filter today at work. At least one user reported opening the attachment. The attachment was named: DOCO943488.doc,…

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Glimpsing the Heap

You connect into the server and type “w” to see who else is on. You see a connection from an IP you don’t recognize! Who is that? What are they…

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Detect Wi-Fi Clients on your DD-WRT Router

Here is a script I wrote that scrapes the web interface of a router running DD-WRT. The script looks for the MAC addresses of wireless users. When it sees a…

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