Date: Tue, 02 Jun 2009 20:55:03 -0400 From: Steve Bertrand <steve@ibctech.ca> To: Chris St Denis <chris@smartt.com> Cc: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>, "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: named: error sending response: not enough free resources Message-ID: <4A25C9E7.9050000@ibctech.ca> In-Reply-To: <4A25C8DB.1080908@ibctech.ca> References: <4A25A415.5010502@smartt.com> <alpine.BSF.2.00.0906030041470.45551@wojtek.tensor.gdynia.pl> <4A25B309.7000701@smartt.com> <4A25C613.3070301@ibctech.ca> <4A25C8DB.1080908@ibctech.ca>
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This is a cryptographically signed message in MIME format. --------------ms050201030202020400020700 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Steve Bertrand wrote: > Steve Bertrand wrote: >> Chris St Denis wrote: >>> Wojciech Puchar wrote: >>>> possible reasons >>>> - your firewall rules are the cause - check it. >>> Nope >>> >>> eureka# ipfw list >>> >>>> - your network card produce problems (REALLY i have that case) >>> I have had this kind of error on multiple servers over the years, so >>> i don't think it's a hardware problem. >>> >>>> - the network/LAN named tries to sent UDP packet is somehow flooded. >>> Dns is probably fairly busy. It's the primary authorative dns for >>> some busy domains. Is there a setting I can do to increase the >>> limits of UDP packets to keep it from causing problems? >>> >>> The server is approaching it's 10 mbps interface speed during peak >>> hours, I may need to upgrade it to 100mbps. >> The 10Mb ceiling (provided by your ifconfig output) could be a damper on >> this. >> >> What type of device is em1 attached to? Is it a switch or a hub? Is it >> possible to upgrade this? You should upgrade it to 100 (or 1000) >> anyways. Does this device show any collisions? >> >> Can you do the following for a few minutes (until at least the problem >> is triggered): >> >> # tcpdump -n -i em1 proto 17 port 53 -s -w /var/log/dns.pcap > > ...meh, that should be: > > # tcpdump -n -i em1 proto 17 and port 53 -s -w /var/log/dns.pcap Ok. Perhaps I'm getting too old to try to recollect from memory. One more try (tested ;) pearl# tcpdump -n -i em1 -s 0 -w /var/log/dns.pcap port 53 and proto 17 Sorry! 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