If you have ever tried to use the Sguil client’s reverse DNS under the IP Resoluation tab and noticed that it caused the application to be unresponsive, here is the reason why. Tcl uses TCP for DNS by default. So if your DNS server does not allow TCP DNS, the client just sits there endlessly [...]
There is quite a lot of documentation provided with the Napatech cards if you are a customer, but the default configs provided aren’t what you want to use to hit the ground running for IDS setups. To configure the card to split the traffic up into 8 streams by hashing the headers, create a /opt/napatech/config/custom.cfg file [...]
Just something thrown together quickly for use with our Ubuntu 8.04 LTS systems to initialize the card and configure it on boot. You must set CONFIG to be your config file or else the script will just exit. This init script assumes you have only one card in the box and it is ntxc0. Don’t [...]