Mike Leone on Thu, 28 Dec 2000 12:48:36 -0500 |
On 28 Dec 2000 12:24:48 -0800, Inkdog.com Staff wrote: > Seasons Greetings all! > > I have been messing around with IPChains recently.. as I have a masqing set > up on a LAN... and a few computers on the net. My goal here is to stop > packets going to ports 1024 and over. So all the clients can send and > recive email and surf the net. > > That is all that is required at this place... so I tried these commands... > and I stopped ALL packets to the clients. > > ipchains -A input -p tcp -s 0/0 ! 0:1024 -j REJECT > > ipchains -A output -p tcp -d 0/0 ! 0:1024 -j REJECT > > ipchains -A input -p udp -s 0/0 ! 0:1024 -j REJECT > > ipchains -A output -p udp -s 0/0 ! 0:1024 -j REJECT > > Again... I am tryin to deny service to all non basic ports.. (AOL IM.. ICQ > stuff like that.. or enable it on a port by port basis... instead of the > whole range being open) > > Also... if someone know how to reset the ipchains rule set without me having > to reboot the machine.. that would be helpful. Oops. That's "ipchains input -F" -F, --flush Flush the selected chain. This is equivalent to deleting all the rules one by one. > > If ya need more details let me know.. thanks and I hope everyone is having a > SAFE and fun holiday season > > Anthony > > > ______________________________________________________________________ > Philadelphia Linux Users Group - http://www.phillylinux.org > Announcements-http://lists.phillylinux.org/mail/listinfo/plug-announce > General Discussion - http://lists.phillylinux.org/mail/listinfo/plug > > -- ------------------------------------------------------------------ Michael J. Leone <mailto:turgon@mike-leone.com> PGP Fingerprint: 0AA8 DC47 CB63 AE3F C739 6BF9 9AB4 1EF6 5AA5 BCDF ______________________________________________________________________ Philadelphia Linux Users Group - http://www.phillylinux.org Announcements-http://lists.phillylinux.org/mail/listinfo/plug-announce General Discussion - http://lists.phillylinux.org/mail/listinfo/plug
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