> -----Original Message----- > From: fedora-list-bounces@xxxxxxxxxx > [mailto:fedora-list-bounces@xxxxxxxxxx] On Behalf Of M E Fieu > Sent: Monday, August 15, 2005 4:17 AM > To: fedora-list@xxxxxxxxxx > Subject: linux box disallow incoming udp traffic ?? > > Hi..I was playing with nmap function. When I use nmap -sU > (udp port scan) to another linux machine, there is no result > returned. But when using nmap (tcp port scan) is okay. If I > nmap -sU on the localhost itself nmap -sU 127.0.0.1, it has > correct result returned. And If I use nmap -sU to another > windows machine, it has correct result returned too. There > is no firewall in between those host. May I know why nmap > -sU can't scan another linux PC ?? > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection > around http://mail.yahoo.com > > -- > fedora-list mailing list > fedora-list@xxxxxxxxxx > To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list > > UDP behaves very differently than TCP. Specifically what UDP ports are you trying to scan? Also do you know that they are not just bound to localhost? -MIke
