Community Support


Knowledge Base Find or create articles to solve specific known problems or instructions how to diagnose problems with OpenNMS and it’s components.
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Link collection to useful external tools

There is a collection of resources available at https://toolbox.opennms.eu/ that may come in handy. This site will have links to OpenNMS resources as well as some tools for troubleshooting. Note: The use of paste tools…

2 March 5, 2019
About the Community Support category 1 December 5, 2018
Nginx server does not hiding opennms url 2 September 19, 2019
How to config OpenNMS for information like hardware, cpu, etc. Ubuntu Server 5 September 17, 2019
How to use NGINX as SSL Proxy with OpenNMS Horizon 5 September 17, 2019
Adding new service to requisition - node does not recognize 3 September 16, 2019
Scheduled Outage issue - outages not being closed if OpenNMS happens to be down when end time passes 1 September 16, 2019
WinRM in OpenNMS 1 August 28, 2019
Critical Path Configuration 1 September 13, 2019
callMobilePhone with Asterisk: FastAGI failed 3 September 13, 2019
Install an older version of OpenNMS Horizon 2 September 12, 2019
Connection refused to Sentinel 3 September 12, 2019
:biohazard: Docker and Kernel Panic on Ubuntu 18.04 with kernel 4.15.0-60 5 September 12, 2019
Arbitrary command monitor 4 September 9, 2019
Provisioning without sysObjectID 2 September 6, 2019
Forwarding alarms northbound via Syslog messages and SNMP traps 3 September 6, 2019
Node category setting policy based on class-name of data source 5 September 5, 2019
SNMP Trap - ifindex - ifname 3 September 4, 2019
Jdbc connection pooling with Oracle Databases 4 September 4, 2019
Horizon 24 install problem with OpenJDK 11 on Windows 12 August 27, 2019
Fresh install on Jetson and doesn't work for 4.1.1 or 4.2 2 August 26, 2019
OpenNMS with Minion servers - firewall ports configuration 1 August 26, 2019
Connection Reset 2 August 24, 2019
Installing OpenNMS fails with ClassNotFoundException: com.sun.tools.attach.AttachNotSupportedException 1 December 7, 2018
Topology view using Graphml 7 August 20, 2019
Geocoder Issue after upgrading to Version: 24.1.0 14 August 19, 2019
SSL Cert expiry monitoring for internal self signed certificates 3 August 14, 2019
SNMP PM not working? 4 August 14, 2019
Template tokens in notifications 3 August 14, 2019
Nginx and OpenNMS configuration 2 August 14, 2019