[Release] Checkmk stable release 2.0.0p27

Dear friends of Checkmk,

the new stable release 2.0.0p27 of Checkmk is ready for download.

This maintenance release ships with 37 changes affecting all editions of Checkmk,
4 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:

  • 14139 FIX: PostgreSQL agent plug-in on Linux: last analyze time wrong

Checks & agents:

  • 14357 Add support for new CPU’s to the OHM plugin
  • 14419 FIX: cisco_cpu_multiitem, cisco_fru_module_status: Fix crash in raw data parsing
  • 14422 FIX: ipmi, ipmi_sensors: Fix user-configured status overrides
  • 13998 FIX: Display files in case count is exceeded
  • 14551 FIX: IPMI sensors include temperature measurements
  • 14056 FIX: aws: Missing regions added
  • 14313 FIX: hp_proliant_raid: illogical rebuild progress percentage
  • 14063 FIX: ibm_svc_systemstats: Fix crash in discovery
  • 14000 FIX: mk_oracle.ps1: missing async sections
  • 14447 FIX: mk_oracle: Cleanup long running processes on AIX
  • 14058 FIX: mssql_counters: Fix crash in parsing mssql_counters
  • 14060 FIX: mssql_counters: Fix crash in parsing mssql_counters
  • 14402 FIX: nfsiostat check metrics when mount name ends on numbers
  • 14407 FIX: single process cpu utilization on windows
  • 14403 FIX: work with nfs mounts not starting with a slash
  • 14312 FIX: hp_proliant_raid: new item names
    NOTE: Please refer to the migration notes!

Core & setup:

  • 14479 SEC: Update openssl to 1.1.1p
  • 14480 SEC: Update openssl to 1.1.1q
  • 13904 SEC: Update vulnerable Python dependencies

Event console:

  • 14337 FIX: Fix painter “Event Console Events/Hosts: Hostname”


  • 13646 FIX: Fix host API calls in case a previous discovery failed
  • 14507 FIX: REST API management board address validator
  • 14059 FIX: WebAPI: Add output to get_bi_aggregations
  • 14344 FIX: host_config: remove restriction that custom attributes must have topic “Custom attributes”
  • 13935 FIX: outbound validation in REST API when attributes got deleted


  • 14478 SEC: Restrict path param in cookies
  • 14477 SEC: Sanitize SiteConfiguration before logging it

Site management:

  • 14543 FIX: Make ssh command work as site user on SUSE Linux Enterprise Server 15 SP3

User interface:

  • 14488 Mega menu: Expand search bar width
  • 14486 FIX: ‘Host groups’ view: Add coloring for host states
  • 14335 FIX: Fix crash if no icon and an emblem was configured
  • 14336 FIX: Fix edit of dashboards without header
  • 14460 FIX: Fix error on rule search
  • 14458 FIX: Fix regression in host and service type filter
  • 14461 FIX: Fix results in quicksearch if configured limit is reached
  • 14338 FIX: Fix service level filter

Changes in the Checkmk Enterprise Edition:

Livestatus proxy:

  • 14163 FIX: liveproxyd: fixed bug that caused livestatus to disconnect the client connection


  • 14376 SEC: Mask passwords in rule export

User interface:

  • 14423 FIX: Main dashboard: Remove unwanted data from the graph “Percentage of total service problems”
  • 14541 FIX: Main dashboard: Render host & service problems graphs in certain multi-site setups

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

1 Like

we have updated yesterday to the p27 cee and at least since then, we have a problem with the sidebar. For me and my colleague the sidebar disappears when logging out and back in, but also when I refresh the webpage with f5. This happens in both firefox and chrome. For me, the error only occurred after I added a snapin and removed it again. My colleague have this issue directly since the update. If you use the sidebar button on the left side, the sidebar will reappear until you press f5 again. Can anyone confirm this?


In addition, apparently it concerns ldap users and not local users…

i can confirm this bug. Since we have updated to p26 the sidebar disappears when i refresh the website or activate pending changes. LDAP and local users, sidebar left or right makes no difference in my case.



It looks like changes to the sidebar are no longer completely propagated to the associated user-config file “~/var/check_mk/web/<user id>/sidebar.mk”. The parameter “fold:True” does not change anymore, no matter if you fold or unfold the sidebar, nevertheless the modified time of the config file changes.

Hey @CFriedrich,

Thanks for reporting. I just wanted to let you know that we are aware of this issue and that our devs are looking into it. We’ll provide an update when we have more details / a solution is made available.


1 Like

Thank you so much for your feedback!

Hi @CFriedrich and @Alex-C9ku
thank you for your report! We just found and fixed the error causing this sidebar fold problem. The fix will be made available with version 2.0.0p28


Hi @Kenneth
Is this “bug” with the sidebar the only problem with LDAP? I.e. can LDAP users login as usual?
Best, Peter

HI @PeterE, there are no reports of login issues with LDAP per se.
If you have issues, please open a dedicated thread. :slight_smile:

Hi Peter, the problem with the sidebar occurs with all users, whether local or ldap. In this sense there is no ldap problem with p27.

@robin.gierse & @CFriedrich
Thanks for the clarification. I have not yet updated (still running 2.0.0p24). I will now upgrade ASAP.

I would only update if I don’t use the sidebar. If you do use it, I would wait for p28.

I use it sometimes. Ok, in this case, I will wait a few more days for p28 to get out.

1 Like