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Scripting for Switches/Routers

The advantage of having a scripting language on your router seems to come in pretty handy sometimes (though I bet most people don’t really use the Tcl interpreter on their Cisco’s). I have been using TCL scripts for ages. The new EEM is just heavenly,
Posted by jahil | 0 Comments
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Exploiting Network Protocols to Exhaust Bandwidth Links

In Feb 2008 I spoke at a conference about "Exploiting Network Protocols to Exhaust Bandwidth Links" in Lahore . "Chase 2008-Conference On Hacking And Security" Venue Institute of Engineers Pakistan IEP Building 2nd Floor, Engineering Centre 97-B/D-1,
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How to identify/reset the stuck sessions in Cisco Router's

There are 5 max concurrent session in Cisco world. There can be a situation in life in which the max concurrent sessions reach the limits. When addressing such situations, it might help. The following command on Unix will dump all the TCBs of the remote
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simultaneous web connections (Squid)

Today, one of my friends asked me how you limit the number of simultaneous web connections from a client browser system using the open source Squid proxy server. Well, You need to use squid ACCESS CONTROLS feature called maxconn. It puts a limit on the
Posted by jahil | 0 Comments
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patch in unix

After you make your changes to your working copy, you'll create a patch using diff. To show all the lines that differ between file1 and file2: jahil# diff file1 file2 To create a patch listing the changes from version1 to version2: jahil# diff -aur version1
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