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| Subject: | zenoss.core host lookups dont work |
| Author: | [Not Specified] |
| Posted: | 2015-03-19 18:17 |
I have configured a new zenoss 5 core instance to run in my control center, and I can perform host name lookups from the host server, however I cannot resolve any DNS lookups from within the zenoss web UI. Anyone have any ideas as to why the core instance isn't using the host servers DNS lookup
| Subject: | By default docker uses |
| Author: | Nick Muir |
| Posted: | 2015-03-20 05:10 |
By default docker uses dnsmasq to relay the DNS requests to the servers listed on the host. I found this a bit iffy as it didn't cover some of my more advanced DNS config.
You can change the way docker does DNS on centos via
/etc/sysconfig/docker
By default it will have a single entry pointing at the host server
--dns=172.17.42.1
You can either edit this and change it your DNS servers or remove the entry completely and docker will copy your /etc/resolve.conf to each of the containers.
See https://docs.docker.com/articles/networking/#dns
For more info
Nick
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