[Release] Checkmk stable release 2.1.0p12

Dear friends of Checkmk,

the new stable release 2.1.0p12 of Checkmk is ready for download.

This maintenance release ships with 33 changes affecting all editions of Checkmk,
11 Enterprise Edition specific changes and 0 Managed Services Edition specific changes.

Support periods can be found here: Checkmk versions

Changes in all Checkmk Editions:

Agent bakery:

  • 14679 FIX: apache_status plugin falls back on ss if netstat is not installed
  • 14678 FIX: mk_docker is docker >=6.0.0 compatible


  • 14169 FIX: BI configuration: Fixed broken search preview

Checks & agents:

  • 14500 lnx_container_host_if: new agent and section plugin for network interfaces
  • 14555 FIX: KUBE: kube_pod_containers replaces \n in check summary
  • 14737 FIX: Linux agent installation on systems with no-exec /var path
  • 13735 FIX: check_mk_agent.solaris: Use “/usr/xpg4/bin/grep” if available
  • 14763 FIX: domino_tasks: state becomes UNKNOWN instead of STALE when data is missing
  • 14558 FIX: kemp_loadmaster_services: Missing Conns metric
  • 14766 FIX: mk_mongodb.py: mongodb_instace section shows information from a different host
  • 14765 FIX: mk_mongodb.py: primary host is listed under active secondaries
  • 14835 FIX: mk_mongodb: Fix unknown option ‘directConnection’ which is only available since pymongo3.11
  • 13734 FIX: mk_oracle: Do not empty cache if the plugin is triggered from multiple sites
  • 14831 FIX: oracle_asm_diskgroup: Fix calculation of total and free space if disk group type is “FLEX”
  • 14739 FIX: Regression: Activate agent controller daemon on Debian based systems
    NOTE: Please refer to the migration notes!
  • 14833 FIX: aruba_wlc_aps: Fix detection of devices
    NOTE: Please refer to the migration notes!

Core & setup:

  • 14385 SEC: Fix limited SSRF in agent-receiver API

HW/SW inventory:

  • 14832 FIX: docker_node_info: Fix inventorizing labels (which might be empty)


  • 14384 SEC: Fix command injection in livestatus query headers


  • 14802 FIX: REST API user endpoints returns custom attributes


  • 13750 Support Diagnostics: Add CMC dumps
  • 14474 FIX: Fix parent renaming for hosts in subfolders
  • 14754 FIX: Fix search result on “Hosts” page if tags or labels are shown
  • 14743 FIX: Fix sorting by folder on ruleset pages
  • 14741 FIX: Use internal folder ID in audit log on moving hosts

Site management:

  • 14292 FIX: Fix possible broken web access after updating to 2.1.0p10
  • 14801 FIX: Improve detection when OMD runs in a container

User interface:

  • 14475 FIX: Don’t show setup menu on remote sites with WATO disabled
  • 14746 FIX: Fix exception on export of BI views as CSV or JSON
  • 14751 FIX: Fix general display options on service discovery page
  • 14753 FIX: Fix possible TypeError on views
  • 14744 FIX: Fix reload of graph dashlets in dashboards
  • 14750 FIX: Fix role ID in user menu

Changes in the Checkmk Enterprise Edition:

Agent bakery:

  • 14735 FIX: Agent Bakery: Cleanup orphaned packages
  • 14736 FIX: Agent Bakery: Show correct signed status if not baking for all platforms
  • 14738 FIX: Linux agent: agent controller not in path when installing to non-default location
  • 14734 FIX: Remove preliminary agent pairing ruleset
  • 14733 FIX: cmk-update-agent: Prevent the minutely timer from flooding the journalctl on Linux

Configuration generation:

  • 13019 FIX: Update requests module

Event console:

  • 13020 FIX: Fix EventConsole “Generate Event” “Internal Server Error”


  • 14747 FIX: Fix duplicate history log while processing spoolfiles
  • 14752 FIX: ServiceNow: Fix usage of custom description

Reporting & availability:

  • 14749 FIX: Fix TypeError on export of graph collections as PDF

User interface:

  • 14720 FIX: Fix Percentage of service problems dashlet in custom dashboards

Changes in the Checkmk Managed Services Edition:

You can download Checkmk from our download page:

Please mail bug reports and qualified feedback to feedback@checkmk.com.
We greatly thank you for using Checkmk and wish you a successful monitoring,

Your Checkmk Team


Any version of 2.1 seems to be (temporarily) unavailable? Did I miss any announcement?

@benjamir79 we are aware of the issue and are currently fixing the problem. Thanks for reporting the problem.


Is there a general problem with 2.1p11 and 2.1p12? Because these are also missing in the download archive. Only in the werks they are still listed.

Yes, we are currently working on restoring access to those releases.
They are not gone, but the access is not possible right now.

I’m more concerned with whether there are bugs in these versions or if it’s just the access that has a problem.

They were unavailable on our download server because due to miscommunication. It had nothing to do with the bugs in the product.


5 posts were split to a new topic: Agent Baking not working after upgrade to 2.1.0p12