Summary: Filtered Chargen Packets

From: Rick Fincher (rnf@spitfire.tbird.com)
Date: Wed Jan 29 1997 - 15:36:06 CST


Thanks for the help on this to:

From: "Brian T. Wightman" <wightman@sol.acs.uwosh.edu>
Jacques Rall <jacques.rall@za.eds.com>
robin.landis@imail.exim.gov
bob@hobbes.dtcc.edu (Bob Rahe)
Ian MacPhedran <Ian_MacPhedran@engr.USask.Ca>
jeffw@smoe.org (Jeff Wasilko)
Nate-Itkin@ptdcs2.intel.com (Nate Itkin)
Reto Lichtensteiger <rali@meitca.com>
"Matthew Stier" <Matthew.Stier@MCI.Com>
"Mark P. Beckman" <beckman@bofh.fleet.capital.ge.com>
"M." <mjastrem@thunder.ocis.temple.edu>
Michael Hawk <mike@gi.net>

Chargen just sprays characters if you telnet to the port (19). It is rarely used
anymore and should not be made available over the internet, if at all.

It can be used for denial of service attacks. Some of the responders had
experienced such attacks

It can be disabled or filtered by a firewall without disrupting useful services.

Thanks again to all,

Rick



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