On Tue 01 of Jun 2010 15:43:54 you wrote: > What version of BIND are you running? If you're getting FD limits, I'd > think it's an older version with a bug, and your problems might also be > alleviated by upgrading. Version: bind-9.3.6-4.P1.el5_4.2
I cannot upgrade. Company's policy is to use only Centos packages.... :( Anyway, I believe that it is not a "true" 9.3 since for example, I can set the "allow-query-cache" statement of 9.5. Of course, only RH can say that and I am not RH. Cheers. > Todd. > > -----Original Message----- > From: bind-users-bounces+tsnyder=rim....@lists.isc.org > [mailto:bind-users-bounces+tsnyder=rim....@lists.isc.org] On Behalf Of > Techi Sent: Tuesday, June 01, 2010 8:36 AM > To: bind-users@lists.isc.org > Subject: max-cache-size query > > Hallo, > Recently, I faced huge problems with my DNS servers (bind crashed with no > apparent reason). Some of the symptons were: > * Huge number of connections on our firewalls (>150000). > * A lot of errors in syslog about max file descriptors limits reached > (currently on system, the FD limit is 4096, the default of centos) > > Anyway, after the proposal of a friend of mine, I removed the the > max-cache- size limit (that was set to 256MB. > After a restart of bind, the FW guys reported a huge drop on connections > (<10000)! > Additionally, I have no crashes so far (in contract with 1-2 per week). > So, why: > a. bind generated so much traffic? > b. Is it possible to have bind crash because I could not handle the cache > clean-up and on the same time to serve requests? > > Thank you > _______________________________________________ > bind-users mailing list > bind-users@lists.isc.org > https://lists.isc.org/mailman/listinfo/bind-users > > --------------------------------------------------------------------- > This transmission (including any attachments) may contain confidential > information, privileged material (including material protected by the > solicitor-client or other applicable privileges), or constitute non-public > information. Any use of this information by anyone other than the intended > recipient is prohibited. If you have received this transmission in error, > please immediately reply to the sender and delete this information from > your system. Use, dissemination, distribution, or reproduction of this > transmission by unintended recipients is not authorized and may be > unlawful. > _______________________________________________ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
