Date: Mon, 25 May 1998 19:18:43 -0400 (EDT) From: Fike Force <fike@distance.net> To: MP <mlistbsd@icorp.net> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: too many open files problem Message-ID: <Pine.BSF.3.96.980525190753.464B-100000@distance.net> In-Reply-To: <3.0.1.32.19980517145521.0069e5b4@icorp.net>
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MP,
The problem is that named is listening on all 400 address. There is an
option that you can set to just listen on one ip address. I would suggest
updating to bind 8.1.2-T3B
--
if you do decide to update here is the syntax.
-
listen-op port 53 { 1.2.3.4; };
};
-
RPD <FreeBSD@distance.net>
On Sun, 17 May 1998, MP wrote:
>
> Greetings,
>
> I'm running into a problem with FreeBSD 2.2.6.
>
> I have two Class C's on my network and recently a hacker tunnelled into the
> backbone and masqueraded under an unused IP in my subnet to do spamming.
> As a result, I opted to bind all my IP addresses - used or not, to one of
> my servers. So I have about 400 or so IPs bound. When I boot FBSD 2.2.6,
> everything works, but if I -HUP the nameserver, I get this in the messages
> log:
>
> May 17 14:29:37 mysys named[1266]: starting. named 4.9.6-REL Wed Mar 25
> 00:29:
> 44 GMT 1998 jkh@time.cdrom.com:/usr/obj/usr/src/usr.sbin/named
> May 17 14:29:37 mysys named[1266]: fcntl(dfd, F_DUPFD, 20): Too many open
> files
> May 17 14:29:37 mysys last message repeated 15 times
>
> The hard limit on open files is set at 360 - this may be inadequate since I
> may have up to 512 domains mapped to my server. I assume there is a
> relationship between these two concepts.
>
> In scanning the archives on FreeBSD.org, none of the solutions worked for
> me (regarding setting ulimit ...) - and I didn't try anything regarding
> compiling the kernel - I'm using the generic compilation right now.
>
> What are my options? Do I need to tune the kernel to solve this problem?
>
> If so, would someone be so kind as to walk me through this process?
> Initial examinations showed a value OPEN_MAX, but it simply referenced some
> header file that I could not find on the system - I haven't done enough
> research yet to figure out what to do.
>
> Any help would be GREATLY appreciated - please direct e-mail to: mp@icorp.net
>
> Thanks very much!!
>
>
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