This is the command we used to register the agent: C:Windowssystem32> "C:Program Files (x86)checkmkservicecmk-agent-ctl. to checkmk. If I try to register it with the command: cmk-agent-ctl register --detect-proxy --hostname FOO --server bla. cmk-agent-ctl register --hostname localhost --server server:8000 --site mysite --user cmkadmin -vv. ColinP November 12, 2022, 12:44pm 1. 0. When I try to register the agent on the host system with: cmk-agent-ctl register --hostname some_hostname --server 127. New replies are no longer allowed. If I try to register (not register-new) a server, which has been in the monitoring since yea…The agent control use the port 8000 for communication. agent_pairing") to their role. You can analyze this by having a look at the server’s certificate chain. 3. 1 does not exist. If the host is monitored by multiple sites, you must register to all of them. service; After that you can register your hosts as usual. cmk-agent-ctl register --hostname myhost --server checkmk. 0. 1. During registration, the agent controller (cmk-agent-ctl) queries the port on which the agent receiver is listening from the Checkmk REST API, unless the port has been explicitly provided on the command line. apt remove --purge check-mk-agent dpkg -i check-mk-agent_2. CMK Checkmk Enterprise Edition 2. 2. service should work as expected. On every host I register that way I don’t get any agent data because of the Issue Host is registe. I had to add the checkmk user again. I get a return with value: 16 The web test connection has a successfull ping but the agent. 488899 +01:00] INFO [cmk_agent_ctl] srcmain. Hi, Some days ago i was testing this software, do a few tests and lately installed on a VM runing linux mint 20. 1. Dann hast du die Herangehensweise schon gefunden, wenn man die Zertifikate noch nicht im Griff hat. cmk-update-agent register -v -H COMPUTERNAME -U register -S xxxxxxxxxxxxxxxxx. serviceThis is a bug of the client cmk-agent-ctl. mydomain. Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins) I have registered over 100 hosts successfull but something is wrong with this one when I use that command: & 'C:Program Files (x86)checkmkservicecmk-agent-ctl. , I had to put the public hostname). I installed the CheckMK Agent on a TrueNAS SCALE host. 1. 1. 2 system. 1. exe" register --hostname s3mo-tape. The folder /var/lib/cmk-agent was missing on my SUSE Linux Enterprise Micro 5. The agent is running and I get all of the. Whether the host is configured for the pull mode (all editions) or the push mode (only the Cloud Edition) makes no difference for the command examples. net:8000--site cmk –user automation --password MYTOKEN sudo reboot (To verify it continues to work post-reboot) andreas-doehler August 15, 2022, 7:25pm 6. This port can be found out via omd config > Basics > AGENT_RECEIVER_PORT Of course, this port has to be exposed for the. 0p6. server --site Main --user cmkadmin --verbose erscheint folgendes: image 1902×257 114 KB. This might be a bug. I installed the CheckMK Agent on a TrueNAS SCALE host. C:\ProgramData\checkmk\agent\config\cas\all_certs. com--site FOO --user BAR -. ss -tulpn | grep 6556 This should be cmk-agent-ctl in daemon mode. Nun wird der Service „CheckMK Agent“ – Service mit Warning angezeigt und es liegt wohl daran. py script to the host to be monitored (both can be found at ~/share/check_mk/agents/plugins on the Checkmk server). 0p20 Debian 11. local:8000 -s checkmk. 1. In your case. CMK version: 2. But if cmk-agent-ctl cannot be started, access fails. I try with: cmk-agent-ctl register --hostname MYHOST --server CMKHOST --site MYSITE --user cmkadmin --password ‘MYPASSWORD’ Then I get the. 3, no problem on installing, and registering the site and the localhost, but with windows keeps me throwing a crit state with the Check_MK Service. The agent controller is well deployed and configured : “C:Program Files (x86)checkmkservicecmk-agent-ctl. 1 gave 404 Not Found: Host 127. service should work as expected. Could you please check who is claiming port 6556? ss -tulpn | grep 6556 This should be cmk-agent-ctl in daemon mode. 1 server? You have to run the cmk-agent-ctl on the machine running the agent, not from the server. exe register --trust-cert -vv” command: [2023-02-10 12:54:18. 0-1_all. gierse,. 4:8000 --site cmk --user cmkadmin --password password. Segmentation fault (core dumped) The same result also with the all needed parameters for the registration. Now you need to register the agnet for TLS handshake. omd update. Jun 17 10:57:15 nc systemd[1]: Stopped Checkmk agent controller daemon. ” failed with this error: "Request failed with code 500 Internal Server Error: Internal Server Error"The folder /var/lib/cmk-agent was missing on my SUSE Linux Enterprise Micro 5. 0 Agent socket: inoperational (!!)The agent control use the port 8000 for communication. The agent control use the port 8000 for communication. 1 Like. For a user to be able to do the cmk-agent-ctl register, which is needed to enable the TLS encryption (available from 2. socket systemctl status cmk-agent-ctl-daemon. rs:14: starting [2023-02-10 12:54:18. 1. evilguy January 8, 2023, 7:53pm 3. socket failed. I should have mentioned I have a network device sitting in-between which is presenting a different certificate (the wildcard cert signed by a public CA) and I haven’t changed any CA settings outside the web UI. Hi everyone, below is the output of the “cmk-agent-ctl. pem. exe register --hostname HOST --server SERVER: 8001 --site SITE --user USER. Jun 17 10:57:15 nc systemd[1]: cmk-agent-ctl-daemon. As for all other server operating systems, Checkmk therefore also provides its own agent for Windows, an agent program that is both minimalistic and secure. It has to match the actual hostname used by the Checkmk server, found under “Setup” > “Hosts”. I dont know why this folder could not be created during cmk agent installation from the cmk-agent-useradd. Deutsch. ” failed with this error: "Request failed with code 500 Internal Server Error: Internal Server Error" root@linux# cmk-agent-ctl register --hostname localhost --server mycmkserver --site mysite --user cmkadmin Waren die angegebenen Werte korrekt, werden Sie aufgefordert, die Identität der Checkmk-Instanz zu bestätigen, zu der Sie die Verbindung herstellen wollen. Host can telnet on port 8000 of the server and a curl request works. cd /etc sudo rm -r check_mk cd /var/lib sudo rm -r check_mk_agent sudo rm -r cmk-agent cd /usr/lib sudo rm -r check_mk_agent sudo systemctl daemon-reload. Jun 17 10:57:15 nc systemd[1]: cmk-agent-ctl-daemon. Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins) sudo: cmk: command not found. On a related note, I’ve been following the beginner’s guide on setting up Checkmk and found that registering the Checkmk Agent for monitoring the monitoring server itself not working. com --site FOO --user BAR --password FOO. The Agent Controller cmk-agent-ctl is the component within the agent that is responsible for transporting the data collected by the agent script. If you want to use the agent in legacy mode, you need to disable cmk-agent-ctl in bakery rules. 0p10 Agent socket: operational IP allowlist: any Connection: localhost:8001/cmk UUID: 186f71b9-8d6f-41c6-be44-bb1f7c23ae7b Local: Connection. In your case doing proxy. secret with the password as String. 1. Sie können zwei Checkmk-Appliances. The cmk-agent user is created during the installation of the agent package. CMK 2. The controller is executed under the cmk-agent user, which has limited privileges, e. If the host is monitored by multiple sites, you must register to all of them. deb Now the cmk-agent-ctl-daemon. Welcome to Checkmk. Join thousands of sysadmins and receive free professional tips and tricks to help you monitor your IT-infrastructure. Hello. de --server monitor. (We used cmk-agent-ctl proxy-register → deploy json to host → cmk-agent-ctl import . 0 2. CMK version:2. mit cmk-agent-ctl help register. The cmk-agent user was sucessfully created. andreas-doehler (Andreas) January 8, 2023, 3:48pm 2. NOTE: A registered host will refuse all unencrypted connections. 0p10 Agent socket: operational IP allowlist: any Connection: localhost:8001/cmk UUID: 186f71b9-8d6f-41c6-be44-bb1f7c23ae7b Local: Connection. Hello. when i executing the command remotely via powershell i’m. 0p17. 0. In case it is left out, the agent controller tries to query the port from the REST API. 2 system. check_für das Abfragen von Webseiten. I dont know why this folder could not be created during cmk agent installation from the cmk-agent-useradd. apt remove --purge check-mk-agent dpkg -i check-mk-agent_2. socket (failed failed) so I stopped and disabled them, then did systemctl daemon-reload and systemctl. 1 does not exist. net -i STAR -P 'XXXXX' -U automation -H sys-vbr02 Apparently I’m too stupid to find the correct call for agent registration via REST API in any documentation. Create MSI file for windows 2019 server. 4. WARNING: The Agent Controller is operating in an insecure mode! To secure the connection run cmk-agent-ctl register. 3. exe" register --hostname s3mo-tape. Hello. 0p20 Debian 11. 1 gave 404 Not Found: Host 127. CMK Version: CRE 2. Please provide me with the output of: systemctl status check-mk-agent. If I try to register it with the command: cmk-agent-ctl register --detect-proxy --hostname FOO --server bla. The folder /var/lib/cmk-agent was missing on my SUSE Linux Enterprise Micro 5. Deutsch. Please provide me with the output of: systemctl status check-mk-agent. TLD -i SITE-NAME -U USERNAME This worked perfectly fine in CMK 2. state. 0, that will not be possible. As suggested in another post i read i checked:-that port 8000 is open-omd config show | grep AGENT_RECEIVER show port 8000Latest version of CheckMK. Rg, ChristianThe Agent Controller cmk-agent-ctl is the component within the agent that is responsible for transporting the data collected by the agent script. 1. com. Basically i installed checkmk site into Docker then i installed the agent into the desired server, but when i run the command: sudo cmk-agent-ctl register -vv --hostname name --server ip:8000 --site cmk --user user. 0/26. 1. This one is listening at port 8000. If the Agent Receiver accepts the request,. $ cmk-update-agent register $ cmk-agent-ctl register. 1. For more information try --helpcmk-agent-ctl register --server cmkserver:443 --trust-cert --site cmksite --user username --password password --hostname monitoringhost On Debian 11 if got the following outputTo register the agent, I ran: sudo cmk-agent-ctl register --hostname localhost --server localhost:8001 --site cmk --user cmkadmin That gives: > sudo cmk-agent-ctl status Version: 2. In the following Monitoring agents box, you specify two important options for the auto-registration. 04. folgenden Register Befehl benutzt. New replies are no longer allowed. The register command cmk-agent-ctl register often gets confused with the Agent update registration cmk-agent-update register, but these are two different registration types: one for TLS encryption and one for registering automatic updates (Agent Bakery, cee). 04. I’m running 2. de--site meine_site --user user --password password --hostname mein-host. We’ll come back to you to ask for. no login shell, and is used only for data transfer. exe register --trust-cert -vv” command: [2023-02-10 12:54:18. 2 system. But if cmk-agent-ctl cannot be started, access fails. The user used for registering has admin privileges at checkmk and is able to see the global setting at the webui. 1. monitoring. check_mk agent runs on top of xinetd service in Linux. Checkmk Enterprise Edition 2. 0. 0p15. 1. C:\ProgramData\checkmk\agent\config\cmk-update-agent. cfg. exe – register --trust-cert’ USAGE: cmk-agent-ctl. exe . Glaube das forum war gerade weg aber um deine Fragen zu beantworten: “C:Program Files (x86)checkmkservicecmk-agent-ctl. Yes I did use the” cmk-agent-ctl register command, after that I got this message. I confused the keyword register on cmk-agent-ctl register with cmk-update-agent register or perhaps on some subconscious level assumed the first would handle both. You’ll also need to do something like cmk-agent-ctl register. example. 1 Like. hardware:~#] cmk-agent-ctl. I am trying to register an agent installed on a Windows Server 2019. service: Scheduled restart job, restart counter is at 2. en. scheint mir noch nicht ganz ausgereift. If you use the bakery, the agent was baked with enabled cmk-agent-ctl. 0-1_all. I was using 8101 so after i set this it worked perfectly. Checkmk Raw Edition 2. 0. 1. Linux: cmk-agent-ctl register --server meinserver. But the agent controller now periodically reads its config to check whether it is in pull or push mode – so it might take up to three minutes until SSL works after a registration. This topic was automatically closed 365 days after the last reply. com:8000 --site itbetrieb --user automation --password xxxxxxxx --trust-cert -vv Version: 2. sh script. Der Linux-Agent der Checkmk-Version 2. If I try to register it with the command: cmk-agent-ctl register --detect-proxy --hostname FOO --server bla. You can display command help with cmk-agent-ctl help, also for specific available subcommands, with cmk-agent-ctl help register for example. ). I have purged checkmk, rebooted and reinstalled the agent on the one hosts but this is not a procedure I really want to do on all my hosts because even 60 seconds of downtime will require careful planning in advance, which will turn the mass registration. 1. 0 then you will find the systemd unit files. 1 sec. I tried the following: apt purge check-mk-agent; manually removed some leftovers rm -r /var/lib/cmk-agent rm -r /var/lib/check_mk_agent; systemctl | grep check still showed two services, system-check_mk. From its very beginning, monitoring Windows servers has been one of the most important tasks performed by Checkmk. Please provide me with the output of: systemctl status check-mk-agent. 489987 +01:00] INFO [cmk_agent_ctl] srclib. 7. Checkmk Enterprise Edition 2. 0 RAW OS: Windows Server 2019 Agent controller not registered After multiple clean installations specifically on this server I can’t get CheckMK to work. domain. Registration indeed is good. If it is systemd please give us the output of systemctl --version. Record Keeping Keep a copy of your application and all submitted documents for your records. xyz:9800 --site cmk --user BAR --password FOO. 1 Like. After a reboot the cmk-agent-ctl-daemon and the check-mk-agent. ╰─$ sudo cmk-agent-ctl status Version: 2. socket systemctl status cmk-agent-ctl-daemon. but this just ended in automation2 searching for automation accounts secrets, removed automation2. tsi: Getting target agent configuration for host ‘localhost’ from deployment serverHi, looking for a windows variable to use to automate agent registration for 200+ hosts that queries hosts in “lowercase” as opposed to “uppercase” (yes our hosts are configured in lower case in Checkmk)So please stop and disable the services for the new agent controller: systemctl stop cmk-agent-ctl-daemon. Alle Hosts angelegt mit Hostname und IP Adresse. Jun 17 10:57:15 nc systemd[1]: cmk-agent-ctl-daemon. The cmk-agent user was sucessfully created. The controller is executed under the cmk-agent user, which has limited privileges, e. a re-register has the same effect, even with a cmk-agent-ctl delete and a “remove TLS registration”. exe' register -s checkmk. This was not expected as I created rules in “Agent controller” {'agent_ctl_enabled': True}. 0p10 OS: linux The hosts agent supports TLS, but it is not being used. To register the agent, I ran: sudo cmk-agent-ctl register --hostname localhost --server localhost:8001 --site cmk --user cmkadmin That gives: > sudo cmk-agent-ctl status Version: 2. 0p10 Agent socket: operational IP allowlist: any Connection: localhost:8001/cmk UUID: 186f71b9-8d6f-41c6-be44-bb1f7c23ae7b Local: Connection. You can either delete that file or remove xinetd altogether. This might be a bug. 2. 0p4, OS: linux, TLS is not activated on monitored host (see details) Looking in the documentation with the new agent I knew I had to register him with cmk-agent-ctl register. 0 OS Version: Appliance 1. Copy the cmk-update-agent binary or the cmk_update_agent. 1. The agent control use the port 8000 for communication. After reading the warning message The agent controller is operating in an insecure mode I started to read the docs on what should be done. Wie hier beschrieben, sollten alle Bedingungen für eine TLS encryption erfüllt sein. e. 1. If it is xinetd remove the. root@waw1-monitor2:/omd# cmk-update-agent -v. Address: 401 Hartwig Court, 1208 Wharf Street, Victoria, BC, V8W 2P5, CanadaCTP Distributors. TLD -i SITE-NAME -U USERNAME This worked perfectly fine in CMK 2. The folder /var/lib/cmk-agent was missing on my SUSE Linux Enterprise Micro 5. The Windows agent. 4. 1 server? You have to run the cmk-agent-ctl on the machine running the agent, not from the server. 8 KB But the monitoring is not able to query the host anymore: I can’t use the cmk-agent-ctl register command when my host resists on a slave site. 1. Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins) I have registered over 100 hosts successfull but something is wrong with this one when I use that command: & 'C:Program Files (x86)checkmkservicecmk-agent-ctl. I have around 60 Windows servers which I have checked using a backed agent. After the installation everything worked. cme and I’m no longer able to register new hosts with an automation user “cmkautomation” that I created a while ago (with role “agent_registration”). mschlenker (Mattias Schlenker) May 30, 2022, 6:11pm 4. (We used cmk-agent-ctl proxy-register → deploy json to host → cmk-agent-ctl import . Checkmk Community CMK Agent Controller not working (CentOS 7) - CMK 2. This prevents host registration (cmk-agent-ctl register) and registration status queries (cmk-agent-ctl. g. To register the agent, I ran: sudo cmk-agent-ctl register --hostname localhost --server localhost:8001 --site cmk --user cmkadmin That gives: > sudo cmk-agent-ctl status Version: 2. Hosts and CheckMK use a current Debian Bullseye and I use CheckMK Server and Client 2. Reload check_mk configuration using below command –. 0. Checkmk Community Trouble after upgrading to 2. C:ProgramDatacheckmkagentconfigcasall_certs. 0:8282 --site cmk --user automation --password <RANDOMPASSWORD> Attempting to. You might apt-get remove the old Checkmk package when no site is using it any more. exe register --hostname HOST --server SERVER: 8001 --site SITE --user USER. 1. TLD -i SITE-NAME -U USERNAME This worked perfectly fine in CMK 2. Ausgabe ist: Local: Hier scheint alles ok zu seine, nur taucht der Host im. It has to be a check_mk user, try with cmkadmin. I installed the CheckMK Agent on a TrueNAS SCALE host. The registration works. cmk-agent-ctl register -v -H HOSTNAME -P 'PASSWORD' -s SUBDOMAIN. But if cmk-agent-ctl cannot be started, access fails. Thx for the quick reply, adding the port gives still the same result: root@paperless-ngx:~# cmk-agent-ctl register --trust-cert -H paperless-ngx. 0. Segmentation fault (core dumped) The same result also with the all needed parameters for the registration. 0. 2. Thank you again Anders! My humility and I will go back into the shadows! Wenn ich aber beim Registrieren den richtigen Port mitgebe, dann gehts…. 0p9. Just like it’s the case for the /etc/cmk-update-agent. 6. local -i home -U cmkadmin ERROR [cmk_agent_ctl] Failed to discover agent receiver port from Checkmk REST API, both with and Registration indeed is good. CMK 2. 0p15. Since the machine you’re trying to monitor is still 2. Die Registrierung erfolgt mit dem Agent Controller cmk-agent-ctl, der für die Konfiguration der Verbindungen eine Kommandoschnittstelle bietet. to checkmk. cee Ubuntu 16. 0p12 Agent socket: operational IP allowlist: any Connection: xxxxx UUID: xxxxxx Local: Connection type: pull-agent Certificate issuer: Site 'xxx' local CA Certificate validity: Wed, 05 Oct 2022 12:04:40 +0000 - Mon, 05 Feb 3021 12:04:40 +0000 Remote: Connection type: pull-agent. Version: 2. example. The Agent Controller cmk-agent-ctl is the component within the agent that is responsible for transporting the data collected by the agent script. Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins) sudo: cmk: command not found. Just to. The cmk-agent user is created during the installation of the agent. 0. rs:41: Loaded config from. Even with custom checks. The registration then aborts, since we cannot continue without knowing the correct port. OK, please also stop cmk-agent-ctl-daemon. OS version: TrueNAS SCALE 22. The controller is executed under the cmk-agent user, which has limited privileges, e. Then I installed the agent on the server, and registered, and this part finally worked, the server can monitor itself (even if I don’t understand why cmk-agent-ctl register --hostname 127. 2 Delete all directories/files of the agent controller from the host. DEBUG [cmk_agent_ctl::modes::pull] handle_request starts DEBUG [rustls::server::hs] decided upon suite TLS13_AES_256_GCM_SHA384 WARN [rustls::conn] Sending fatal alert HandshakeFailure DEBUG [cmk_agent_ctl::modes::renew_certificate] Checking registered connections for certificate expiry. Just in case: We are prepared for cases where the agent controller cannot be started or. Agent Updater (Agentenbäckerei), Discovery des Agent Controller Ports, mit Transportverschlüsselung. The cmk-agent user is created during the installation of the agent. cmk-agent-ctl register -v -H HOSTNAME -P 'PASSWORD' -s SUBDOMAIN. Are you trying to register the 2. B. If the host is monitored by multiple sites, you must register to all of them. Bei einem Netzwerkdienst liegt es nahe, den Dienst über das Netzwerk abzufragen und über diesen Weg auch zu überwachen. sh script. Hello. Registration indeed is good. 0p20 Ubuntu 20. If you forward port 9800 to 8000 then you also have to use port 9800 in your register command. For Debian remove the cmk-agent and purge the configuration, than reinstall the agent, this purges the xinetd configuration. The Windows agent of Checkmk version 2. cmk-agent-ctl register --server cmkserver:443 --trust-cert --site cmksite --user username --password password --hostname monitoringhost On Debian 11 if got the following outputYes I did use the” cmk-agent-ctl register command, after that I got this message. If the host is monitored by multiple sites, you must. Here is the deep link to the section in the manual:. com--site FOO --user BAR -. Without register, the communication will handle also via port 8000, so you need to clarify if this port is open. XXX. The controller is executed under the cmk-agent user, which has limited privileges, e. 0. 5. The Hostname is the familiar name that Checkmk will use for the monitoring. I’m using CMK 2. We will be asked for some information about the host. 1. 0 (Blue Onyx) [root@CHECKMK services]# cmk-agent-ctl. no login shell, and is used only for data transfer. 2. You’ll also need to do something like cmk-agent-ctl register. Hi everyone, below is the output of the “cmk-agent-ctl. socket failed. 1. Registration indeed is good. service: Scheduled restart job, restart counter is at 2. Bulk Consent Manager. socket systemctl status cmk-agent-ctl-daemon. keine Login-Shell hat und nur zur Datenübertragung genutzt wird. I am trying to register an agent installed on a Windows Server 2019. The Windows agent. The Agent Receiver tells the Agent Controller. Here it makes sense to pass the required registration information directly via the command. Contact an admin if you think this should be re-opened. 1 Like. OK, let’s figure out who is doing what. It has to match the actual hostname used by the Checkmk server, found under “Setup” > “Hosts”. cme and I’m no longer able to register new hosts with an automation user “cmkautomation” that I created a while ago (with role “agent_registration”). WalterH (Walter Hofstädtler) May 30, 2022, 5:42pm 31. Then I installed the agent on the server, and registered, and this part finally worked, the server can monitor itself (even if I don’t understand why cmk-agent-ctl register --hostname 127. 6 LTS Package: check-mk-raw-2. net -i STAR -P 'XXXXX' -U automation -H sys-vbr02Yes I did use the” cmk-agent-ctl register command, after that I got this message. copy the cmk-agent-ctl for the architecture you are using to e. 234. 02.