[Xymon] findhost + enadis not working after in-place upgrade

[Mike Hatami]

Hi Jeremy,

Thank you very much for helping me with this.

No ghost client, all hosts’ clientlog are received by the server. Even I searched all the logs with no indication of ghost clients.
Following your instruction the hosts.cfg permission was as root user and group so I changed it to apache that the web service is running as and rebooted the server. But no changes yet.

Kind regards,
Mike

From: Jeremy Laidman <jeremy at laidman.org>
Sent: Thursday, 29 April 2021 2:41 AM
To: Mike Hatami <Mike.Hatami at ngs.nsw.edu.au>
Cc: xymon at xymon.com
Subject: Re: [Xymon] findhost + enadis not working after in-place upgrade

Check your "Ghost Clients" report to see if the hostnames in hosts.cfg match the hostnames in the status messages.

The xymond status page indicates that you've received no enable or disable messages - possibly because they've been rejected by xymond, which I would expect to see in a log somewhere, such as xymond.log.

The enable/disable page is a CGI script. If it's having permissions problems or some other issue, you might see something show up in the Apache logs.

As I understand it, the enable/disable CGI binary gets its host list by loading in the hosts.cfg and any included files. The CGI binary runs as the Apache user. So the Apache user needs to have read permission on the hosts.cfg file and any included files and their containing directories. So check the permissions of any host files and ensure that the Apache user can read them. If this is the problem, I would expect a log message in the Apache log file indicating a permissions problem.

J

On Wed, 28 Apr 2021 at 16:29, Mike Hatami <Mike.Hatami at ngs.nsw.edu.au<mailto:Mike.Hatami at ngs.nsw.edu.au>> wrote:
Hi Jeremy,

Thanks for the reply.

I installed a fresh Xymon on a CentOs as per the following:


  *   CentOS Stream 8 Server
  *   Xymon 4.3.30-1.el8.terabithia
  *   Enable/Disable page only sees the Xymon Server not any other hosts. I have something about 100 or more hosts and about 50 of them have client/agent installed and they report
  *   Another problem is that though clientlog is received and are green for the hosts only the xymon server has CPU/disk/procs/etc columns not other hosts


I checked all the httpd and xymon log as far as I could but cannot find anything. Xymond status page:
Wed Apr 28 16:21:42 2021 - xymon daemon up: 0 days, 01:24:59
Statistics for Xymon daemon
Version: 4.3.30-1.el8.terabithia
Up since 28-Apr-2021 14:56:43 (0 days, 01:24:59)

Incoming messages      :     122954
- status               :     118924
- combodata            :          0
- combo                :          0
- extcombo             :       1668
- page                 :          0
- summary              :          0
- clientsubmit         :          0
- clientconfig         :          0
- data                 :       1148
- clientlog            :          1
- client               :        849
- notes                :          0
- enable               :          0
- disable              :          0
- modify               :          0
- ack                  :          0
- config               :        128
- query                :          0
- xymondboard          :         98
- xymondlog            :         22
- hostinfo             :         22
- drop                 :          0
- rename               :          0
- dummy                :         82
- ping                 :          0
- notify               :          0
- schedule             :         12
- download             :          0
- Timeouts             :          0
- Bogus/Unknown        :          0
Incoming messages/sec  :         25 (average last 300 seconds)

status channel messages:     118945 (1 readers)
stachg channel messages:       1680 (1 readers)
page   channel messages:        713 (1 readers)
data   channel messages:       1148 (1 readers)
notes  channel messages:          0 (0 readers)
enadis channel messages:          0 (0 readers)
client channel messages:        848 (1 readers)
clichg channel messages:          9 (1 readers)
user   channel messages:          0 (0 readers)
backfeed messages      :          0

M

From: Jeremy Laidman <jeremy at laidman.org<mailto:jeremy at laidman.org>>
Sent: Wednesday, 28 April 2021 4:15 PM
To: Mike Hatami <Mike.Hatami at ngs.nsw.edu.au<mailto:Mike.Hatami at ngs.nsw.edu.au>>
Cc: xymon at xymon.com<mailto:xymon at xymon.com>
Subject: Re: [Xymon] findhost + enadis not working after in-place upgrade

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On Wed, 28 Apr 2021 at 15:42, Mike Hatami via Xymon <xymon at xymon.com<mailto:xymon at xymon.com>> wrote:

Any answer for this one?

You're not giving us much to go on. Was this an upgrade to the OS or to Xymon? From what version to what version? What investigation have you carried out already? Have you checked for errors in the logs or in the "xymond" status page for the server?

J

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