A Catalogue for the Library: Graylog Dashboards on the Proxmox Cluster
Logs are a lot like the universe: vast, mostly empty, and every so often something in them is on fire.
Since the Graylog part, a month of log lines from the clust
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Mathias Brandstetter Founder @ Klammeraffe.org
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A log store with a search box is a library without a catalogue. So Graylog got one: two dashboards as code, for the morning round and the slow-website afternoon.
First catch: fail2ban was watching every attack and banning nobody. It couldn’t read its own logs.
Part 3 of my Proxmox HA lab, with LibreNMS, CSP reports, WordPress updates and a DSGVO appendix. PDF inside.
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Graylog on the Proxmox Cluster 1.1: Listening for Silence
A log server that only answers questions is a library. One that rings when something is missing is a night watchman.
Version 1.1 of Graylog on the Proxmox VE HA Lab Cluster is out. Version 1.0 could read the archive
My Proxmox lab’s logs were well kept and never read. Now Graylog reads them: three Data Nodes that never move, one server that moves when it has to, and every remote address in one field, so one search follows one visitor everywhere.
Seven failure tests found a firewall that had never been on. A Data Node rebuild went from 39 minutes to 9.
Write-up and a 70-page PDF:
behindtheconsol
RE: podcasts.social/@behindtheconsole/…
My Proxmox lab’s logs were well kept and never read. Now Graylog reads them: three Data Nodes that never move, one server that moves when it has to, and every remote address in one field, so one search follows one visitor everywhere.
Seven failure tests found a firewall that had never been on. A Data Node rebuild went from 39 minutes to 9.
Write-up and a 70-page PDF:
behindtheconsole.com/2026/…
A Reader for the Archive: Graylog on a Three-Node Proxmox Cluster
Every node already writes home. Somebody has to read the letters.
Since the first part, every node of my three-node Proxmox lab sends its syslog to a log host outside the cluster. Tha
