Date: Mon, 07 May 2001 16:20:48 -0400 From: Nathan Vidican <webmaster@wmptl.com> To: questions@freebsd.org Subject: sm.statd overflow attempt kills named Message-ID: <3AF703A0.F186C453@wmptl.com>
next in thread | raw e-mail | index | archive | help
The sm.statd overflow attempt, which is reportedly a bug that effects only Linux machines is apparently killing off named. For some reason I keep having named quit on me, and no errors whatsoever are reported on the console or otherwise with the exception of an attempt to create what I believe is a buffer overflow using statd. I was told easlier not to worry about said errors as they would have no effect on a FreeBSD box; being sceptical I got a bit experimental with it. I still do not know who is attempting these overflows, or why... frankly I really don't care. I have recompiled the kernels of most of the production machines, and included a local firewall to disallow such attempts. However, two machines which I have not yet setup a firewall on (ironically both happen to be the network DNS servers), keep closing off named. I get no errors, and co complaints from named, not even a quitting string in /var/log/messages. No core dumps, no performance problems on said machines (other than the obvious happening with no local DNS); yet named just stops. Up until most recently it has not been an issue; I've been setting the machines up still, and occashionally rebooting (thereby restarting named anyhow). Now I'm almost done, and I'm basically ready to put these machines into service. I will be running a local firewall on each of these machines as well, (currently running, just wide-open 'pass all from any to any via any'), so I anticipate the problem will no longer exist. The reason I'm writting, is basically out of curiosity; how does the sm.statd overflow error effect DNS services? Is there even a co-relation between the two, (or am I soon to find out I just have an un-related problem with named) ? Any ideas why this happens... or how one would be able to stop it (assuming I didn't put a firewall in place, which will happen out of practise anyhow)? Nathan Vidican Nathan@Vidican.com http://Nathan.Vidican.com/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3AF703A0.F186C453>