Category Archives: Microsoft

The importance of using stateful firewall rules on port 53 (DNS)

Scenario A firewall appliance forwards DNS traffic to the outside world. The traffic generated is e.g. for Server 2008 as per here in Technet, i.e. Traffic Type Source of Transmission Source Port Destination of Transmission Destination Port Queries from local … Continue reading

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Patching recent Linux kernels ( > 2.6.32 ) for MPPE and MPPC VPN

There is an excellent introduction here http://www.phparchitecture.com/howto_show.php?id=3&showall The part that is missing for kernels (I am told up to 2.6.32) is the link to this: http://code.google.com/p/setvps/downloads/detail?name=Linux-2.6.18-mppe-mppc-1.4.patch&can=2&q= Don’t forget to do a global search and replace of the linux version before … Continue reading

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