Monitoring Collabora Online with Prometheus
Scraping Collabora Online's Prometheus-compatible metrics, the numbers worth alerting on such as documents open, memory per Kit and errors, and Grafana dashboards for capacity planning.
Collabora Online operations and troubleshooting
Monitoring Collabora Online and fixing the problems operators hit most: connection errors, WOPI allow list warnings, protocol mismatches, built-in server failures and missing fonts.
Fixing Collabora Online connection errors in Nextcloud
Working through 'unexpected connection error' and documents that will not load: checking capabilities and discovery URLs, protocol mismatches, firewalls, reverse proxy WebSocket rules and logs on both sides.
Resolving WOPI allow list and unauthorized host errors
Why Collabora or Nextcloud refuses a WOPI request, matching IP allow lists and aliasgroups after network changes, and testing from each side.
Troubleshooting the Nextcloud built-in CODE server
Fixing the Built-in CODE Server app when it will not start or connect: hostname reachability, FUSE and AppImage issues, slow first start, and when to switch to a dedicated server.
Collabora Online logging and audit configuration
Configuring coolwsd log levels and destinations, enabling server audit features, shipping logs to a SIEM, and keeping document content out of logs.
Fixing missing fonts and rendering differences in Collabora Online
Diagnosing documents that look different from Microsoft Office: missing fonts in the systemplate, font substitution, remote font configuration, and verifying fixes on sample documents.
Collabora Online with Nextcloud server-side encryption
Why Nextcloud server-side encryption is unsupported with Collabora Online, the options for encrypted storage underneath, and how to explain the trade-off to security teams.
