Common Round Robin Database (RRD) issues

Checkmk is not affected by Spring4Shell (CVE-2022-22965)

Checkmk is not affected by RediShell (CVE-2025-49844)

Checkmk is not affected by Log4j (CVE-2021-44228)

Checkmk is not affected by Dirty Pipe Exploit (CVE-2022-0847)

Troubleshooting mkeventd - Integer overflow while parsing TimeTicks in SNMP trap

Troubleshooting when fetcher for host HOST times out after X seconds

Troubleshooting overlapping clusters: "Empty output from agent at aa.bb.cc.dd:6556" error

Troubleshooting Checkmk agent systemd service repeatedly failing on CentOS 7

Troubleshooting - Cannot activate changes. Another activation process is currently in progress or locked

Troubleshooting "Failed to start minibox thread" cmk_update_agent.checkmk.py error

LDAPs does not work: "Can't contact LDAP server", 'errno': 115

Debug predictive monitoring

Windows Python ImportError: DLL load failed

Windows troubleshooting: debugging the ps section and collecting resource consumption