[dnsdist] DNS DIST Drops Problems
pieter.lexis at powerdns.com
Tue Nov 26 09:23:00 UTC 2019
On 11/25/19 5:34 PM, Lichtnau Frank wrote:
> I have a problems with drops.
> I use 3 pools:
> 1. For internal windows-domain (3 win-ad-dns)
> 2. For internal linuxdomain ( 2 linx-dns-server)
> 3. For external dns-calls ( firewall )
> Sometimes, it is not replicable when, the drop-count for external
> dns-calls starts to grow up and from this time no dns-call from clients
> get an answer.
Are the drops on all pools or just one pool?
> I can stop this behavior only by restarting dnsdist.
That could indicate an issue on the machine running dnsdist.
> os: debian buster
> dnsdist: 1.3.3 ( from debian distribution)
> How can I discover the problems. I don’t find any infos in syslog
I can recommend looking in the journal (journalctl -u dnsdist.service -n
40) and using the `grepq` and `topSlow` commands in the dnsdist
console and setting setVerboseHealthChecks to true in your config so
dnsdist logs when a backend server goes down.
PowerDNS.COM BV -- https://www.powerdns.com
More information about the dnsdist