[Spacewalk-list] Problem installing Spacewalk on CentOS7 (Brand new install)

[Bruce Wainer]

Robert,
Using any type of DNS lookup tool does properly resolve the FQDN to the
machine's IP address, both on this machine and on others in the network
that use the internal DNS servers. Is reverse lookups (IP -> FQDN) required
as well?

# host netman.ad.brucewainer.com
netman.ad.brucewainer.com has address 192.168.10.20

Thanks,
Bruce

Bruce Wainer

On Tue, Jun 27, 2017 at 12:34 AM, Robert Paschedag <robert.paschedag at web.de>
wrote:

> Am 27. Juni 2017 03:25:00 MESZ schrieb Bruce Wainer <bruce at brucewainer.com
> >:
> >Hello all,
> >
> >I have found an issue installing SpaceWalk on CentOS7 that I have not
> >been
> >able to diagnose/resolve (aside from the required downgrade of c3p0 as
> >mentioned here https://bugzilla.redhat.com/show_bug.cgi?id=1442140 ).
> >
> >Issue: osa-dispatcher.service crashes on start with "'Not able to
> >reconnect"
> >
> >Background Information: Brand new install of CentOS7, set the hostname
> >durin the installer, ran updates, made sure hostname was correct in all
> >locations including /etc/hosts, followed the spacewalk installation
> >instructions verbatim.
> >
> >Every time osa-dispatcher is started, "journal -xe" logs the following
> >3
> >times (I think due to three connection attempts)
> >Jun 26 21:09:37 NETMAN.ad.brucewainer.com jabberd/c2s[1003]: [7]
> >[::ffff:192.168.10.20, port=45018] connect
> >Jun 26 21:09:37 NETMAN.ad.brucewainer.com jabberd/c2s[1003]: [7]
> >[::ffff:192.168.10.20, port=45018] disconnect jid=unbound, packets: 0,
> >bytes: 168
> >Jun 26 21:09:37 NETMAN.ad.brucewainer.com jabberd/c2s[1003]: SASL
> >callback
> >for non-existing host: NETMAN.ad.brucewainer.com
> >Jun 26 21:09:37 NETMAN.ad.brucewainer.com jabberd/c2s[1003]: SASL
> >callback
> >for non-existing host: NETMAN.ad.brucewainer.com
> >Jun 26 21:09:37 NETMAN.ad.brucewainer.com jabberd/c2s[1003]: SASL
> >callback
> >for non-existing host: NETMAN.ad.brucewainer.com
> >Jun 26 21:09:37 NETMAN.ad.brucewainer.com jabberd/c2s[1003]: SASL
> >callback
> >for non-existing host: NETMAN.ad.brucewainer.com
> >Jun 26 21:09:37 NETMAN.ad.brucewainer.com jabberd/c2s[1003]: SASL
> >callback
> >for non-existing host: NETMAN.ad.brucewainer.com
> >Jun 26 21:09:37 NETMAN.ad.brucewainer.com jabberd/c2s[1003]: SASL
> >callback
> >for non-existing host: NETMAN.ad.brucewainer.com
> >Jun 26 21:09:37 NETMAN.ad.brucewainer.com jabberd/c2s[1003]: SASL
> >callback
> >for non-existing host: NETMAN.ad.brucewainer.com
> >Jun 26 21:09:37 NETMAN.ad.brucewainer.com jabberd/c2s[1003]: SASL
> >callback
> >for non-existing host: NETMAN.ad.brucewainer.com
> >Jun 26 21:09:37 NETMAN.ad.brucewainer.com jabberd/c2s[1003]: SASL
> >callback
> >for non-existing host: NETMAN.ad.brucewainer.com
> >Jun 26 21:09:37 NETMAN.ad.brucewainer.com jabberd/c2s[1003]: SASL
> >callback
> >for non-existing host: NETMAN.ad.brucewainer.com
> >Jun 26 21:09:37 NETMAN.ad.brucewainer.com jabberd/c2s[1003]: SASL
> >callback
> >for non-existing host: NETMAN.ad.brucewainer.com
> >
> >Based on this it seems like jabberd isn't recognizing the hostname, but
> >I
> >have followed the "Resolution" and "Diagnostic Steps" here:
> >https://access.redhat.com/solutions/327903 to no avail, as well as
> >every
> >other google result related to "SASL callback for non-existing host".
> >Since
> >my hostname was set during the installation, it was automatically and
> >correctly put into every config file that matters, other than
> >/etc/hosts
> >which I have rechecked a haf dozen times. You can see in the journalctl
> >output that the host that jabberd is seeing matches the actual
> >hostname.
> >I've done the complete setup from scratch twice to make sure I hadn't
> >missed any step in the installation instructions.
> >
> >Joe Belliveau, it sounded like you ran into an issue like this with
> >your
> >new install?
> >
> >Thanks in advance for any assistance,
> >Bruce Wainer
>
> So.... Testing your DNS resolution with "dig" or "host" or "nslookup" does
> resolve your hostname correctly?
>
> Just found this right now but it looks there was no answer yet...
>
> https://www.redhat.com/archives/spacewalk-list/2017-February/msg00022.html
>
> Robert
>
>
>
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