Hello,
I’ve been trying for several days to monitor a service on a remote host not included in the nagios-plugin “Checks” without success.
In addition to installing the above package on LibreNMS and remote host (Ubuntu 22.04), where is hosted the Syslog-NG service that I need to monitor for my client.
I have created a simple script similar to the one in the tutorial hosted on Youtube from the LibreNMS channel (LibreNMS Services - YouTube) and added it as a service.
I attach the script:
user@remote-host:/usr/lib/nagios/plugins$ cat check_syslog-ng.py
#!/usr/bin/python3
import os
import sys
output = os.system (‘systemctl is-active syslog-ng’)
print (output)
if output == 0:
print(“OK. Syslog-NG Service Running”)
sys.exit(0)
else:
print(“Critical. Syslog-NG Service Down”)
sys.exit(2)
Running this script from the CLI I get the following:
-
From the remote server:
user@host_remote:/usr/lib/nagios/plugins$ ./check_syslog-ng.py
active
0
OK. Syslog-NG Service Running -
From the LibreNMS server:
librenms@librenms:/usr/lib/nagios/plugins$ ./check_syslog-ng1.py
inactive
768
Critical. Syslog-NG Service Down -
From the LibreNMS server querying another host:
librenms@librenms:/usr/lib/nagios/plugins$ ./check_syslog-ng1.py -H 172.X.X.X.X
inactive
768
Critical. Syslog-NG Service Down -
The same thing happens from WebUI (as expected):
Both hosts are on the same subnet. LibreNMS is monitoring it correctly.
Attached is ./validate.php
librenms@librenms:/opt/librenms$ ./validate.php
| Component | Version |
|---|---|
| LibreNMS | 22.8.0-102-gfd6fdeeb5 |
| DB Schema | 2022_09_03_091314_update_ports_adsl_table_with_defaults (246) |
| PHP | 8.1.8 |
| Python | 3.10.4 |
| Database | MariaDB 10.6.7-MariaDB-2ubuntu1.1 |
| RRDTool | 1.7.2 |
| SNMP | 5.9.1 |
| ==================================== |
[OK] Composer Version: 2.4.2
[OK] Dependencies up-to-date.
[OK] Database connection successful
[OK] Database Schema is current
[OK] SQL Server meets minimum requirements
[OK] lower_case_table_names is enabled
[OK] MySQL engine is optimal
[OK]
[OK] Database schema correct
[OK] MySQl and PHP time match
[OK] Active pollers found
[OK] Dispatcher Service not detected
[OK] Locks are functional
[OK] Python poller wrapper is polling
[OK] Redis is unavailable
[OK] rrd_dir is writable
[OK] rrdtool version ok
librenms@librenms@librenms:/opt/librenms$
I would be very grateful if you could help me.
Thank you.