' adds to each url for http check


I have many http checks for monitor websites for changes.
Here is a example conf:

As url I use: /de/support/model/LC49RG90SSUXEN/

But the check fails with:

HTTP CRITICAL: HTTP/1.1 200 OK - string '<li 
class="manuals-downloa...' not found on 
 - 369312 bytes in 0.424 second response time

I don’t know where check mk adds the &#x27; at the end.
Only 2 http checks are working, I don’t know why (I created the working checks long time before the other one).

I created a host to summerize these checks. It has as ip. I moved the http checks to another “real” client, but this changed nothing.

My cmk version is 2.0.0p15
I’m using this plugin: HTTP/HTTPS Connection

Output from cmk --debug -vvn host:

OMD[monitoring]:~$ cmk --debug -vvn Webseitenueberwachung
Checkmk version 2.0.0p15
Try license usage history update.
Trying to acquire lock on /omd/sites/monitoring/var/check_mk/license_usage/next_run
Got lock on /omd/sites/monitoring/var/check_mk/license_usage/next_run
Trying to acquire lock on /omd/sites/monitoring/var/check_mk/license_usage/history.json
Got lock on /omd/sites/monitoring/var/check_mk/license_usage/history.json
Next run time has not been reached yet. Abort.
Releasing lock on /omd/sites/monitoring/var/check_mk/license_usage/history.json
Released lock on /omd/sites/monitoring/var/check_mk/license_usage/history.json
Releasing lock on /omd/sites/monitoring/var/check_mk/license_usage/next_run
Released lock on /omd/sites/monitoring/var/check_mk/license_usage/next_run
  Source: SourceType.HOST/FetcherType.PIGGYBACK
[cpu_tracking] Start [7f971b860e80]
No piggyback files for 'Webseitenueberwachung'. Skip processing.
No piggyback files for ''. Skip processing.
[PiggybackFetcher] Fetch with cache settings: NoCache(base_path=PosixPath('/omd/sites/monitoring/tmp/check_mk/data_source_cache/piggyback/Webseitenueberwachung'), max_age=MaxAge(checking=0, discovery=120, inventory=120), disabled=False, use_outdated=False, simulation=False)
[PiggybackFetcher] Execute data source
[cpu_tracking] Stop [7f971b860e80 - Snapshot(process=posix.times_result(user=0.0, system=0.0, children_user=0.0, children_system=0.0, elapsed=0.0))]
[cpu_tracking] Start [7f971b860ac0]
  Source: SourceType.HOST/FetcherType.PIGGYBACK
No persisted sections loaded
  -> Add sections: []
Received no piggyback data
Loading item states
Trying to acquire lock on /omd/sites/monitoring/tmp/check_mk/counters/Webseitenueberwachung
Got lock on /omd/sites/monitoring/tmp/check_mk/counters/Webseitenueberwachung
Releasing lock on /omd/sites/monitoring/tmp/check_mk/counters/Webseitenueberwachung
Released lock on /omd/sites/monitoring/tmp/check_mk/counters/Webseitenueberwachung
No piggyback files for 'Webseitenueberwachung'. Skip processing.
No piggyback files for ''. Skip processing.
[cpu_tracking] Stop [7f971b860ac0 - Snapshot(process=posix.times_result(user=0.010000000000000009, system=0.0, children_user=0.0, children_system=0.0, elapsed=0.0))]
execution time 0.0 sec | execution_time=0.000 user_time=0.010 system_time=0.000 children_user_time=0.000 children_system_time=0.000 cmk_time_agent=0.000

Even if I try to monitor google, the &#x27; are added.

Thanks, this reinforces the suspicion that there is a misconfiguration. But where could this be?

Check for an apostrophe ´ ←
somewhere in your rule. That’s what &#x27; translates to.

Yes, I know, but I don’t find any ´ in my checks. maybe another place?

Did you ever find a solution to this as we are experiencing the same problem

Hi, I fixed it long time ago. I looked and did not find the solution.
Since no one answered me then except one user, I decided to keep the solution then also for me, I’m sorry for you.
I can tell you what it definitely was not:

  • Update/reinstallation of Checkmk
  • Changes to the code of Checkmk
  • Client errors
  • Error in the direct configuration of the HTTP check