Greetings. I would like to create an application layer gateway (ALG) using netfilter. I need to know two things that don't seem to be obvious from all the FAQs and documentation: 1) An example of the iptables rule needed (I assume using NFQUEUE) 2) A spec for what the userland program needs to be listening for and sending out. For example, if I wanted to make a LAN-to-WAN ALG that did something lame like change the spelling of some HTTP request headers, I would need t listen on dest port 80 on the LAN interface, grab the traffic, send it to a program (probably a daemon) that munges the traffic, and sends it on. What would I need to do this? --Paul Hoffman -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html