Self help
OP5 Monitor Self-help
OP5 Monitor Self-help
OP5 Monitor Components
OP5 Monitor HTTP API
- How to submit status updates through the HTTP API
- How to expose OP5 Monitor's API through a reverse proxy
- How to add hosts using OP5 Monitor REST API.
- How to add a host and service using a perl script
- How to fetch CSV reports over the HTTP API
- Creating an HTTP API driven command-line tool
General and Miscellaneous questions
- How to quickly diagnose OP5 Monitor.
- How to make an OP5 Monitor setup more secure
- How to use ITRS Support Tools (ist, ist-collect, and ist-diagnose)
- How to include custom files or folders in op5-backup.
- How ist-collect collects data.
- How to inspect the data being collected by ist-collect.
Hardware Appliance
- How to replace hardware or log support issues for OP5 Monitor Appliances hardware components (Dell)
- How to fix Dell repository issues regarding GPG keys and certificate validation
- How to update firmware on Dell Poweredge servers
- How to resize the filesystem in OP5 hardware applicance
- How to monitor the hardware of your OP5 Monitor server
- What are op5 Appliance servers power consumption data? (Dell Poweredge)
OP5 Monitor Reports
- How to extract columns from CSV export of a report with CLI tools
- How to change sender (from) address on scheduled reports
- Monitor cookie banner shows up in reports
- "Request-URI Too Large"
- How to fix Report generation fails: "There was an error rendering the page", Failed to parse time string (...) at position 0 (2): Unexpected character?
- How to convert the report_data table to a more human readable format with SQL queries
Installation and Upgrade
- OP5 Monitor is no longer distributed with an operating system.
- How to fix "Cannot find a valid baseurl for repo: base" on EL6
- Offline upgrade of Monitor without ISO
- Is it possible to install OP5 Monitor on RHEL8 or CentOS 8?
- How to migrate an OP5 Monitor appliance from EL6 to EL7.
- How to fix missing dependencies when installing OP5 Monitor 8 on Red Hat Enterprise Linux 7
OP5 Monitor Performance
- Estimating necessary bandwidth in a Monitor cluster
- How to adjust rrdcached options to increase IO performance
- How to solve when MySQL runs with very high cpu-usage (ie. 100%)?
- How to Tweak PHP and MySQL settings for OP5 Monitor
- How to analyze sysload issues? Troubleshooting high runq-sz, and iops/tps values.
User Interface (UI)
- How to fix "Undefined property: CorePDOHandler" in Nagvis
- How to fix an issue where user in "limited_edit" group cannot edit hosts/services?
- How to fix "Graphviz call failed"
- How to fix "The requested URL _ was not found on this server." error?
- How to change ownership of a dashboard in OP5 Monitor?
- How to fix "We found no log messages for your selected options" message
OP5 Monitor Back-end
- Disable configuration changes on a Monitor node
- How to export hosts and services to CSV
- How to find backups of previous configuration saves by Nachos
- Geomap tiles incident 2021-01-13
- Modifying Apache response headers for external widgets
- Re-enabling indexes for tables in MySQL
Plugins and Agents
- How to troubleshoot incorrect readings from check_yum_update
- Oracle Instant Client not available in ITRS OP5 Monitor repositories
- How to install the NRPE agent/daemon on CentOS 8
- How to fix Perl based checks that break after upgrade OP5 Monitor
- How to use check_by_snmp_memory on EL7.7.
- How to workaround the SNMP limitation in Zombie process reporting?
Core Platform and Functionality
- How to fix critical alerts on "Nachos - HTTP" and "Magellan - HTTP" in a clustered environment.
- How to verify and troubleshoot Naemon object configuration files using naemon -v.
- How to fix the smsd service not starting due to missing directory
- Why is my host check being executed more often than the check_interval?
- "Event was cancelled by iobroker input"
- How to add environment variables to naemon check_commands
Unsupported Community Documents
- Using git repositories to backup, track and restore local configuration files
- How to install DokuWiki stand-alone on Centos 8
- Merlin How-To
- Installing NRPE from EPEL
- Certificate based authentication between check_nrpe and NSClient++
- Certificate based TLSv1+ encryption with NSClient++