[Xymon] Displaying results when the DNS FQDN is different from uname -n

[Adam Goryachev]

On 20/5/20 11:17, Stephen Carville (xymon list) wrote:
> I have several new machines that do not display local information in 
> XYMon. Part of that is the FQDN differs from the name returned by 
> uname -n. For example apg-rdtx-nde-01.lereta.net thinks it is just 
> plain apg-rdtx-nde-01.  I verified this by capturing the clientlog 
> sent to the server.
>
> I tried the obvious trick of putting a CLIENT: entry into host.cfg but 
> to no avail. That works for a couple of other nodes where the name 
> returned by uname -n is different than the DNS name we know them by so 
> I am mystified as to why it won't work here
>
> Example hosts.cfg entry:
>
> 10.1.224.187  apg-rdtx-nde-01.lereta.net  # ssh CLIENT:apg-rdtx-nde-01
>
> As I said above, I captured the traffic from one of the clients and I 
> can see that it is sending the information to XYMon. However, I cannot 
> find where it is being stored if at all. Normally, I look in 
> /var/xymon/data/hostdata/<servername> but it doesn't appear to be there.
>
> Is there a way to make this work?
>
You might prefer to change this on the client. On Debian it is 
configured in /etc/default/xymon-client, other OS versions might vary.

Otherwise, you can also check the Ghost clients report to see what names 
are being sent which might provide some further clues.

Regards,
Adam