Hi Tom
SELinux isn’t installed, apparmor is disabled and not running.
# aa-status
apparmor module is loaded.
apparmor filesystem is not mounted.
Best regards
ChrisP
From: Tom Schmidt <tom@4schmidts.com>
Sent: Friday, 13 September 2024 22:13
To: Xymon mailinglist <xymon@xymon.com>
Cc: Jeremy Ruffer <jeremy.ruffer@gmail.com>; Chris Pretorius <chris.pretorius@coaxle.co.za>
Subject: Re: [Xymon] Re: Xymon on Ubuntu 24.04
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Is SELinux enabled on your Ubuntu install? If so, you may need to change it from Enforcing mode to Permissive mode in the /etc/selinux/config file. SELinux will block many of the commands run by Xymon unless they are all explicitly granted
permission by SELinux.
Tom
On Fri, Sep 13, 2024 at 2:07 PM Chris Pretorius via Xymon <xymon@xymon.com> wrote:
Hi Jeremy
I went berserk and set very high values
MAXMSG_CLIENT=4194304
MAXMSG_STATUS=4194304
MAXMSG_DATA=4194304
But the problem is not resolved
--------------------------
Output in rrd-status.log with –debug enabled
2024-09-13 21:58:08.000165 Peer at 0.0.0.0:0 failed: Broken pipe
2024-09-13 21:58:13.080151 Peer not up, flushing message queue
13258 2024-09-13 21:58:13.109283 setup_feedback_queue: got ID -1 for key 0xA010D68
13258 2024-09-13 21:58:13.109533 Opening file /usr/lib/xymon/server/etc/rrddefinitions.cfg
13258 2024-09-13 21:58:13.111854 Want msg 1, startpos 0, fillpos 0, endpos -1, usedbytes=0, bufleft=4198399
13258 2024-09-13 21:58:13.111894 Got 1856 bytes
13258 2024-09-13 21:58:13.111900 xymond_rrd: Got message 1 @@status#1/xymon.xyz.co.za|1726257493.075018|x.x.x.x||xymon.xyz.co.za|xymongen|1726259293|green||green|1726230891|0||0||1726237717|||0|
13258 2024-09-13 21:58:13.111930 startpos 1856, fillpos 1856, endpos -1
13258 2024-09-13 21:58:13.111969 Transport setup is:
13258 2024-09-13 21:58:13.111995 xymondportnumber = 1984
13258 2024-09-13 21:58:13.111997 xymonproxyhost = NONE
13258 2024-09-13 21:58:13.112043 xymonproxyport = 0
13258 2024-09-13 21:58:13.112045 Recipient listed as 'x.x.x.x'
13258 2024-09-13 21:58:13.112048 Standard protocol on port 1984
13258 2024-09-13 21:58:13.112056 Will connect to address x.x.x.x port 1984
13258 2024-09-13 21:58:13.112726 Connect status is 0
13258 2024-09-13 21:58:13.112769 Sent 16 bytes
13258 2024-09-13 21:58:13.113837 Read 826 bytes
13258 2024-09-13 21:58:13.113861 Closing connection
*** buffer overflow detected ***: terminated
2024-09-13 21:58:13.366744 Child process 13258 died: Signal 6
Best regards
From: Jeremy Ruffer <jeremy.ruffer@gmail.com>
Sent: Friday, 13 September 2024 16:11
To: Chris Pretorius <chris.pretorius@coaxle.co.za>; Xymon mailinglist <xymon@xymon.com>
Subject: Re[2]: [Xymon] Xymon on Ubuntu 24.04
What have you got them set to now?
I would double them again and again if needed.
There is one slight gotcha here. We had a system where the figure was bytes instead of KB in spite of the comments in the file saying they were KB.
Regards
Jeremy
------ Original Message ------
From: "Chris Pretorius" <chris.pretorius@coaxle.co.za>
To: "Jeremy Ruffer" <jeremy.ruffer@gmail.com>; "Xymon mailinglist" <xymon@xymon.com>
Sent: 13/09/2024 15:01:46
Subject: RE: [Xymon] Xymon on Ubuntu 24.04
Thanx Jeremy
Increased the limit and restarted, but still getting the same line in the logs.
Best regards
From: Jeremy Ruffer <jeremy.ruffer@gmail.com>
Sent: Friday, 13 September 2024 15:55
To: Xymon mailinglist <xymon@xymon.com>; Xymon Mailing List <xymon@xymon.com>
Cc: Chris Pretorius <chris.pretorius@coaxle.co.za>
Subject: Re: [Xymon] Xymon on Ubuntu 24.04
Hi Chris,
You may need to change some memory limits in xymonserver.cfg
MAXMSG_CLIENT
MAXMSG_STATUS
MAXMSG_DATA
If you have plenty of memory I would multiply them all by 8.
HTH
Jeremy
------ Original Message ------
From: "Chris Pretorius via Xymon" <xymon@xymon.com>
To: "Xymon Mailing List" <xymon@xymon.com>
Cc: "Chris Pretorius" <chris.pretorius@coaxle.co.za>
Sent: 13/09/2024 14:22:38
Subject: [Xymon] Xymon on Ubuntu 24.04
Good day
I please need guidance to configure xymon on Ubuntu 24.04
I installed xymon from the default apt repository.
It’s a VM running in Azure and installed using the repo that was setup for a Ubuntu vem on azure.
Also changed the repo to the default mirrors.kernel.org and installed xymon from there.
# apt-cache policy xymon
xymon:
Installed: 4.3.30-2build3
Candidate: 4.3.30-2build3
Version table:
*** 4.3.30-2build3 500
500 https://mirrors.kernel.org/ubuntu noble/universe amd64 Packages
100 /var/lib/dpkg/status
Xymon does start and generates the pages which I can view but is missing the client tests (disk, cpu, memory etc..), and the rrd graphs
Confirm port 1984 is listening
I see a bug was also recently reported here https://bugs.launchpad.net/ubuntu/+source/xymon/+bug/2078638
I see similar entries in the xymon {clientdata.log, rrd-status.log alert.log } files, repeating.
**** snip ****
2024-09-13 14:50:52.967847 Peer not up, flushing message queue
*** buffer overflow detected ***: terminated
2024-09-13 14:50:53.187820 Child process 5496 died: Signal 6
2024-09-13 14:51:52.977025 Peer at 0.0.0.0:0 failed: Broken pipe
**** snip ****
This is a fresh install and the only change I made in xymonserver.cfg are:
XYMONSERVERIP=”server ip”
Firewall disabled
Apparmor disabled
Thank you.
ChrisP
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