From owner-freebsd-hackers Tue Apr 29 18:34:53 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id SAA23447 for hackers-outgoing; Tue, 29 Apr 1997 18:34:53 -0700 (PDT) Received: from super-g.inch.com (super-g.com [204.178.32.161]) by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id SAA23440 for ; Tue, 29 Apr 1997 18:34:50 -0700 (PDT) Received: from localhost (spork@localhost) by super-g.inch.com (8.8.5/8.6.9) with SMTP id VAA17051; Tue, 29 Apr 1997 21:55:14 -0400 (EDT) Date: Tue, 29 Apr 1997 21:55:13 -0400 (EDT) From: spork X-Sender: spork@super-g.inch.com To: Warner Losh cc: John Capo , hackers@freebsd.org Subject: Re: 2.2.X ping -l == ping -f In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk I do like the side-effect this produces; namely, joe user can't do a "pseudo ping-flood" by setting a huge preload. We've cancelled a few users for abusing ping in this way to get back at some IRC idiot they don't like. ping -l some-big-number is enough to take down quite a number of terminal servers, and this makes it a bit harder for someone to do damage with a simple diagnostic tool: -|super-g|-$ ping -l 10000 port101.dialup ping: Operation not permitted -|super-g|-$ ls -al `which ping` -r-sr-xr-x 1 root bin 122880 Apr 12 07:53 /sbin/ping 2.1.7.1 allows a big preload value, which I didn't care for... Charles On Tue, 29 Apr 1997, Warner Losh wrote: > In message <19970429005928.23012@irbs.com> John Capo writes: > : As of version 1.8.2.8 ping drops into flood mode when -l preload > : is used. Was this change in -l behavior intentional? > > Yuck. IF this change has my name on it, it wasn't intentional. It > shouldn't do that, imho. > > Warner >