Thanks much Email to bruce.hayw...@mtsallstream.com
> -----Original Message----- > From: Chris Thompson [mailto:c...@hermes.cam.ac.uk] On Behalf > Of Chris Thompson > Sent: Friday, March 06, 2009 12:12 PM > To: Hayward, Bruce > Cc: Bind Users Mailing List > Subject: Re: Settings for File Descriptors > > On Mar 6 2009, Hayward, Bruce wrote: > > >I am trying to understand file descriptors with bind in > mind, and what > >they should be set at in conjunction with the OS. > > > >We are running 9.5.1 P1 on Solaris 10 (patched up), which is > basically > >all that is on each server. > > > >Some questions: > > > >1) Is there a recommended setting (number of FDs)? > > BIND will set the file descriptor resource limit to > "unlimited" when it starts up, unless you tell it not to in > the "options" setting. > Just forget about it. > > >2) Better to set this at the kernal level with the set rlimit, or a > >compile option with configure, or both > > This doesn't apply to BIND (see above) but I think it foolish > to mess around with /etc/system to change resource limits for > all processes, when you can easily use a targetted "ulimit" > command in the calling script for the process that actually needs it. > > BIND doesn't have a compile option for this, anyway, AFAIK. > Are you confusing this with the FD_SETSIZE value? BIND > 9.5.1-P1 on Solaris will not be using select(3c) anyway, so > that isn't an issue. > > >3) Should the number be correlated to the number of > recursive clients? > >4) Different on the auth servers? > > If you did go out of your way to make it other than > "unlimited", then yes to both. But don't. > > -- > Chris Thompson > Email: c...@cam.ac.uk > _______________________________________________ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users