Good morning Ulrich, the problem are the words "some clients". Have you ever seens what happens when the name resolution library is trying to get answers first from one or two dead nameservers? (I'm sure you have ;-) ) Load balancing may also be a reason to use lvs in front of DNS servers.
Best regards Andreas Mock -----Ursprüngliche Nachricht----- Von: [email protected] [mailto:[email protected]] Im Auftrag von Ulrich Windl Gesendet: Freitag, 16. August 2013 08:04 An: [email protected] Betreff: [Linux-HA] Antw: Ldirector checks for DNS Hi! Do you know that the design of DNS had failover right from the start? Just specify multiple nameservers. Some clients do their own response time statistics and select the fasters server from the list. Regards, Ulrich >>> <[email protected]> schrieb am 14.08.2013 um 23:32 in Nachricht <[email protected]>: > Hi,I'm using Ubuntu 12.04 + Heartbeat 3.0.5-3ubuntu2 + > Ldirector 3.9.2-5ubuntu4.1 to provide high availability and load > balancing for DNS .I would like to know some details about checking for DNS. > My conf: > > > ## DNS :: IPv6 :: myvirtualserver.com:domain > virtual6=[2001:db8:38a5:8::2006]:53 > real6=myrealserver.com:53 gate 7661 > scheduler=wlc > protocol=udp > service=dns > checktype=negotiate > failurecount=3 > receive="10.10.2.72" > request="myzone.com" > > I'd like to do 'request' for NS or AAAA records. Is it possible? Default is > ask for A record. > > Thanks! > -- > Thiago Henrique > adminlinux.com.br > > _______________________________________________ > Linux-HA mailing list > [email protected] > http://lists.linux-ha.org/mailman/listinfo/linux-ha > See also: http://linux-ha.org/ReportingProblems _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems _______________________________________________ Linux-HA mailing list [email protected] http://lists.linux-ha.org/mailman/listinfo/linux-ha See also: http://linux-ha.org/ReportingProblems
