In <165173.69225.qm@web39604.mail.mud.yahoo.com>, Prasun Dhara wrote:
I also want alert message 1. if some one from a remote machine tries to connect my computer
Someone would have to write an app to tie into the various notification systems, but the ULOG target of iptables should allow this. Of course, it might be thousands of attempts a day for a computer with a publicly routable IP.
2. if some one from a remote machine tries to run a port scanner on my ip
That's harder to detect, but you'd already notice it from the hundreds or thousands of alerts triggered by #1. -- Boyd Stephen Smith Jr. ,= ,-_-. =. bss@iguanasuicide.net ((_/)o o(\_)) ICQ: 514984 YM/AIM: DaTwinkDaddy `-'(. .)`-' http://iguanasuicide.net/ \_/