Re: [bind-users] DNS weirdness

Hello Doc, Wanted to see if you were able to resolve your issue. I have seen this issue occur in the past also. Jerry On 01/ 6/15 12:50 PM, The Doctor wrote: Help needed. This morning my primary DNS server locked. No worries, the backup will kick in. Wrong !! The Secondary DNS server ca

Too many connections on the same IP

Hello, during a massive DNS utilization our Bind 9.10.1-P1 seems not to resolve anymore, neither local zone. We shutdown one of the two nodes and all queries arrived only on one node. CPU and memory load were not too overloaded, machine was quite fine. After some fast tests, i noticed that if f

Re: [bind-users] DNS weirdness

On Tue, Mar 03, 2015 at 03:47:58AM -0600, Jerry K wrote: > Hello Doc, > > Wanted to see if you were able to resolve your issue. > > I have seen this issue occur in the past also. > Not yet. Still the problem with the original server was a dying power supply. > Jerry > > > On 01/ 6/15 12:50

Config large tuning and out of memory

Hello, i recompiled Bind 9.10.1-P1 with system large tuning enabled. I have some hundreds of view (with DLZ) in our system. With this feature compiled in, bind does not start: Mar 3 16:50:45 cloud02gw named[13338]: reloading configuration failed: out of memory I have 16 Gb of RAM, and about 1

Re: Config large tuning and out of memory

Is your binary 64 bit, or 32? Rich > On Mar 3, 2015, at 9:54 AM, Job wrote: > > Hello, > > i recompiled Bind 9.10.1-P1 with system large tuning enabled. > I have some hundreds of view (with DLZ) in our system. > > With this feature compiled in, bind does not start: > > Mar 3 16:50:45 cloud0

Re: Too many connections on the same IP

On 03.03.15 11:43, Job wrote: during a massive DNS utilization our Bind 9.10.1-P1 seems not to resolve anymore, neither local zone. We shutdown one of the two nodes and all queries arrived only on one node. CPU and memory load were not too overloaded, machine was quite fine. After some fast te

Re: Config large tuning and out of memory

Job, I won’t go in to this in detail, as it’s more complicated than “your 32 bit system can’t address more than 4GB of RAM”, but your 32 bit OS is almost certainly your problem. Most of your 16GB of RAM is unused due to OS limitations. I’d recommend upgrading to a 64 bit OS, then compile a

RE: Config large tuning and out of memory

CentOS 5.x does have a 64 bit version. 5.2 is quite old - they're up to 5.10 or 5.11 these days. I don't think you can just change from 32 bit to 64 bit - I think it requires a reinstall from the 64 bit installation media. If you have do a reinstall you're better off going to at least Cen

R: Config large tuning and out of memory

Thank you for the excellent reply! Francesco Da: bind-users-boun...@lists.isc.org [bind-users-boun...@lists.isc.org] per conto di Lightner, Jeff [jlight...@dsservices.com] Inviato: martedì 3 marzo 2015 19.10 A: bind-users@lists.isc.org Oggetto: RE: Config

R: Too many connections on the same IP

I tried to tune kernel, with SOMAXCONN but with no solutions! When DNS queries raise up over 300 queries per second, bind has huge timeouts and often does not respond. If i work on an ip alias, everything is right! it seems bind has some limit based on local ip address. is there any solutions?

Re: R: Too many connections on the same IP

Have you checked to see if there is another machine using the same IP? > On Mar 3, 2015, at 4:40 PM, Job wrote: > > I tried to tune kernel, with SOMAXCONN but with no solutions! > When DNS queries raise up over 300 queries per second, bind has huge timeouts > and often does not respond. > If i