> Hi, >> Can someone tell me what tools I could use to examine outbound packet >> data >> for the usernames and modify it if it matches a list of accounts we want >> to block? >> >> > I suggest writing your own netfilter-module that does the packet > inspection, and if a packet matches you can simply return NF_DROP to > instruct the kernel to drop the packet. A good tutorial/book is > available here: http://jengelh.medozas.de/ > > Maybe you can do something similar with libpcap, but I am not sure if > you can drop packets. I would love to just drop the packets but this causes the client application to crash. So I think I need to modify ones that match to an invalid user name. I've seen it mentioned that libpcap can capture the traffic, I have not seen where it can modify and then send it on. Can it do that? --- Will Y. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- 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
