Date: Wed, 14 Jul 1999 12:50:02 -0700 (PDT) From: "Brian F. Feldman" <green@FreeBSD.org> To: freebsd-ports@FreeBSD.org Subject: Re: ports/12596: pidentd is unstable in 3.2 and 4.0 Message-ID: <199907141950.MAA73939@freefall.freebsd.org>
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The following reply was made to PR ports/12596; it has been noted by GNATS.
From: "Brian F. Feldman" <green@FreeBSD.org>
To: Sheldon Hearn <sheldonh@uunet.co.za>
Cc: Kevin Day <toasty@dragondata.com>,
freebsd-gnats-submit@FreeBSD.org
Subject: Re: ports/12596: pidentd is unstable in 3.2 and 4.0
Date: Wed, 14 Jul 1999 15:41:37 -0400 (EDT)
On Wed, 14 Jul 1999, Sheldon Hearn wrote:
>
>
> On Wed, 14 Jul 1999 00:40:12 -0400, "Brian F. Feldman" wrote:
>
> > > I can understand the stuck identd processes perhaps, from inetd, but.. I
> > > don't see how inetd can make identd return 'no user' when it shouldn't. :)
> >
> > I don't see that either. You will want to try one of two things:
>
> *grrr* What you can't see _can_ hurt you. Please don't let Brian's
> comments influence your willingness to try this with a working inetd.
Inetd is not the problem here! He should try running a proper interface
for socket credentials, rather than the libkvm interface. I am 99.44%
certain that the problem is race conditions in the libkvm interface,
which are avoided using the proper solution which I kindly implemented
for everyone.
>
> I just ran 10000 connections to my ident port and queried a valid
> socket/port pair, redirecting the output to a text file. Here's what I
> found:
>
> for i in `jot 10000 1` ; do
> nc axl.noc.iafrica.com 113 <pair.in
> done > nc-ident.out
> wc -l nc-ident.out
> 10000 ident.out
> sort nc-ident.out | uniq
> 3237 , 11338 : USERID : UNIX :sheldonh
>
> I'm not saying that it's impossible that there are bugs in pidentd. I'm
> just saying that writing new code to replace it because you think that
> it has bugs that aren't there, instead of tracking down those bugs, is
> downright silly.
>
> Please try with a fixed inetd. If you still encounter problems, I'll be
> more than happy to help you resolve them. Your feedback will be very
> much appreciated.
>
> Ciao,
> Sheldon.
>
Brian Fundakowski Feldman _ __ ___ ____ ___ ___ ___
green@FreeBSD.org _ __ ___ | _ ) __| \
FreeBSD: The Power to Serve! _ __ | _ \._ \ |) |
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