R: Too many connections on the same IP

2015-03-04 Thread Job
Hello Stefan, and thank you for the reply. >>Are you using iptables Firewall? >>Does the problem only occur on UDP connections to the problematic IP? Or also >>on TCP >>connections to the same IP? At the beginning, i thought was an iptables-behind-firewall problem and i made massive dns resolut

Re: R: Too many connections on the same IP

2015-03-03 Thread Hugh Greenberg
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

R: Too many connections on the same IP

2015-03-03 Thread Job
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?