[ovirt-users] reverse lookup failure during overt engine configuration

[Yedidyah Bar David]

----- Original Message -----
> From: "Kriparam Faraday" <kfaraday at verisign.com>
> To: users at ovirt.org
> Sent: Saturday, January 31, 2015 12:52:17 AM
> Subject: [ovirt-users] reverse lookup failure during overt engine	configuration
> 
> Hi,
> I am trying to configure ovirt(ver 3.5). The fqdn I provide during the step
> "Host fully qualified DNS name of this server” is reverse resolvable. I am
> able to verify that with nslookup of the IP address.
> 
> But, I keep getting the following error:
> Host fully qualified DNS name of this server [localhost.localdomain]:
> xyz.xyz.xyz.com
> [ ERROR ] Host name is not valid: The following addresses: 10.xx.xx.xx did
> not reverseresolve into xyz.xyz.xyz.com

(
BTW, there is a bug here - missing space between 'reverse' and 'resolve'.
Now pushed [1] for this to master branch.

[1] http://gerrit.ovirt.org/37424
)

> 
> How is ovirt-engine trying to reverse lookup the domain? If I know that, I
> could probably fix the issue.

You can see the code doing this check in
/usr/share/ovirt-engine/setup/ovirt_engine_setup/hostname.py

You can check the log, mentioned by engine-setup, in /var/log/ovirt-engine/setup,
to try and see what failed.

Generally, by default, the check above is ran only when configuring all-in-one.

It looks up the input fqdn, and for each result address, looks up its reverse
mapping (the PTR record) using 'dig -x', and checks that the result is equal to
the input fqdn.

Best,
-- 
Didi