xyz:9800 --site cmk --user BAR --password FOO. 1. In your case. The registration is done using the Agent Controller cmk-agent-ctl, which provides a command interface for configuring the connections. Dann hast du die Herangehensweise schon gefunden, wenn man die Zertifikate noch nicht im Griff hat. CMK 2. I installed the CheckMK Agent on a TrueNAS SCALE host. 0. The cmk-agent user was sucessfully created. I had to add the checkmk user again. 0p10 Agent socket: operational IP allowlist: any Connection: localhost:8001/cmk UUID: 186f71b9-8d6f-41c6-be44-bb1f7c23ae7b Local: Connection. You can learn how to use the agent here. in the host run the register checkmk agent. What I already tried: I tried only listening on ports 80 and 443 for caddy, with {"serverDuration": 24, "requestCorrelationId": "464b55cee9f74460a402ac4a40d2b489"} Checkmk Knowledge Base {"serverDuration": 18, "requestCorrelationId. I am trying to register an agent installed on a Windows Server 2019. And now. Hi @P. For Debian remove the cmk-agent and purge the configuration, than reinstall the agent, this purges the xinetd configuration. ” failed with this error: "Request failed with code 500 Internal Server Error: Internal Server Error"Danach erfolgte die Registrierung und der Update Befehl. 6 LTS Package: check-mk-raw-2. C:\Program Files (x86)\checkmk\service>cmk-agent-ctl. 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. But nothing worked. cmk-agent-ctl register -v -H HOSTNAME -P 'PASSWORD' -s SUBDOMAIN. 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. „TLS is not activated on monitored host (see details)“. Wenn ich aber beim Registrieren den richtigen Port mitgebe, dann gehts…. (We used cmk-agent-ctl proxy-register → deploy json to host → cmk-agent-ctl import . 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”). CMK 2. 57. XXX. It would be good if after you run the cmk-agent-ctl register you get a positive validation in the command output like OK or Registered! thanks for your support. Yes I did use the” cmk-agent-ctl register command, after that I got this message. omd update. So now you must de-register, on the host: cmk-agent-ctl delete-all --enable-insecure-connections Then on the CMK server: Properties of host, then menu entry Host > Remove TLS registration Afterwards connections should work albeit insecure. OS version: Rocky Linux release 9. 6 I have an external cloud host that I would like to monitor with in-house CMK server. The cmk-agent user was sucessfully created. Das zu bestätigende Server-Zertifikat haben wir aus Gründen der. The cmk-agent user was sucessfully created. domain. OS version: TrueNAS SCALE 22. The controller is executed under the cmk-agent user, which has limited privileges, e. Finally, in Bake agent packages, activate. The Windows agent of Checkmk version 2. mschlenker (Mattias Schlenker) July 8, 2022, 8:12am 4. Yes I did use the” cmk-agent-ctl register command, after that I got this message. 5. I am experiencing a problem with registering the agent: CMK version: 2. Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins) sudo: cmk: command not found. As suggested in another post i read i checked:-that port 8000 is open-omd config show | grep AGENT_RECEIVER show port 8000I think problem is in that a cloned account has all the same paths of it’s original account, i had cloned automation → automation2 as i had problems witth update agent not liking secrets meanwhile tls registration wanted secrets i think. Welcome to Checkmk. service should work as expected. In your case doing proxy. gerhards. You already entered the right command with openssl s_client -connect SLAVE01:443. I have around 60 Windows servers which I have checked using a backed agent. Alle Hosts angelegt mit Hostname und IP Adresse. ago. „TLS is not activated on monitored host (see details)“. I created the folder manually and changed ownership, and now the registration is working! Agent Controller is not running, no config files can be found in the systemd directory and within xinetd. pem. service: Scheduled restart job, restart counter is at 2. Bulk Consent Manager. 0. The Linux agent of Checkmk version 2. DOMAIN. TLD -i SITE-NAME -U USERNAME. 1. The cmk-agent user is created during the installation of the agent. 0p6. root@waw1-monitor2:/omd# cmk-update-agent -v. 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) July 8, 2022, 8:12am 4. exe" status It also seems that you have multiple sites on your Checkmk server based on port 8001 in the response. Register. service. com. I had to add the checkmk user again. 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. THaeber • 5 mo. When you have done all this, install the agent again and it will work properly. to checkmk. 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. 0 did not yet use TLS, so port 8000 didn’t need to be exposed back then. CMK version: 2. 6 Likes. I am trying to register an agent installed on a Windows Server 2019. Here you can enter a host’s name simply in order to view the host’s configuration (e. The Hostname is the familiar name that Checkmk will use for the monitoring. The Agent Receiver tells the Agent Controller. Our Manufacturers. d, only the check-mk-agent can be found: [root@jumphost]# cmk-agent-ctl register --hostname myclient . The registration against the corresponding slaves works fine and I can see with cmk-agent-ctl status, that the host is registered and in pull-mode now: image 843×285 37. 2. apt remove --purge check-mk-agent dpkg -i check-mk-agent_2. exe register --hostname HOST --server SERVER: 8001 --site SITE --user USER. This might be a bug. Now the cmk-agent-ctl-daemon. 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. CMK 2. check_mk agent runs on top of xinetd service in Linux. The Agent Controller cmk-agent-ctl is the component within the agent that is responsible for transporting the data collected by the agent script. 04 Command used for registration: cmk-agent-ctl. This might be a bug. The systemd is version 246. service systemctl stop check-mk-agent. exe . 0 did not yet use TLS, so port 8000 didn’t need to be exposed back then. exe” register. Just in case: We are prepared for cases where the agent controller cannot be started or. 0p14 Agent socket: operational IP allowlist: 10. /root/bin and make sure that /root/bin is in the PATH and before /usr/bin_ install the checkmk agent deb; wait for a few seconds (sleep 5) cp /root/bin/cmk-agent-ctl /usr/bin/ systemctl start cmk-agent-ctl-daemon. Checkmk Raw Edition 2. CMK version: 2. CMK version: 2. service then restart xinitd and tell me about the output of ss -tulpn | grep 6556. Redirecting to /bin/systemctl reload xinetd. socket systemctl status cmk-agent-ctl-daemon. The hostname “localhost” was wrong. If you want to use the agent in legacy mode, you need to disable cmk-agent-ctl in bakery rules. Jun 17 10:57:15 nc systemd[1]: cmk-agent-ctl-daemon. In your case doing proxy. Sehr beliebt ist z. 0. 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. Ich registriere den Agent : sudo cmk-agent-ctl register --hostname hlcmk --server 10. 7 I have problem since the connection to the cmk server has to be ssl encrypted. 0. I am not able to debug the cmk-agent-ctl since it is in. I am trying to register an agent installed on a Windows Server 2019. g. Join thousands of sysadmins and receive free professional tips and tricks to help you monitor your IT-infrastructure. 2 system. 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. exe" register --hostname s3mo-tape. Password for user ‘cmkadmin’: Successfully registered agent of host “monitor2” for deployment. 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. CMK version: 2. 0. You can display command help with cmk-agent-ctl help, also for specific available subcommands, with cmk-agent-ctl help register for example. WalterH (Walter Hofstädtler) May 30, 2022, 5:42pm 31. 514. I’ve installed the agent and succesfully register on OS windows 7x64 and. Release notes. You can learn how to use the agent here. For Debian remove the cmk-agent and purge the configuration, than reinstall the agent, this purges the xinetd configuration. ” 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. Haven’t done anything else with the install yet. But if cmk-agent-ctl cannot be started, access fails. Host can telnet on port 8000 of the server and a curl request works. exe to register the Agent Controller. 488899 +01:00] INFO [cmk_agent_ctl] srcmain. 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. Ob der Host dabei für den Pull-Modus (alle Editionen) oder den Push-Modus (nur Cloud Edition) konfiguriert ist, macht für die Befehlsbeispiele keinen Unterschied. From its very beginning, monitoring Windows servers has been one of the most important tasks performed by Checkmk. ╰─$ sudo cmk-agent-ctl status Version: 2. I was using 8101 so after i set this it worked perfectly. Nun wird der Service „CheckMK Agent“ – Service mit Warning angezeigt und es liegt wohl daran. Version: 2. 0p10 Agent socket: operational IP allowlist: any Connection: localhost:8001/cmk UUID: 186f71b9-8d6f-41c6-be44-bb1f7c23ae7b Local: Connection. 2. Unfortunately, the problem remains: C:WINDOWSsystem32>"C:Program Files (x86)checkmkservicecmk-agent-ctl. I get a return with value: 16 The web test connection has a successfull ping but the agent. 168. 1. However, there is a difference between console output of “cmk-agent-ctl status” and “cmk_agent_ctl_status” from agent output (downloaded via “Download. 0b4-1 OS: Ubuntu 20. 168. Could you please check who is claiming port 6556?. After a reboot the cmk-agent-ctl-daemon and the check-mk-agent. Welcome to the Checkmk User Guide. latest (2. CMK Version: 2. , I had to put the public hostname). exe register --trust-cert -vv” command: [2023-02-10 12:54:18. Password: explicit. 0. 107:8000 --site home -U cmkadmin ERROR [cmk_agent_ctl… One of my hosts is producing this error, while most others register fine: root@sshgateway:~# cmk-agent. I dont know why this folder could not be created during cmk agent installation from the cmk-agent-useradd. cmk-update-agent –v. socket Then restart your xinetd (or just reboot). Jun 17 10:57:15 nc systemd[1]: cmk-agent-ctl-daemon. rs:29: No connection could be made because the target. 1. 6 Likes. If you use the bakery, the agent was baked with enabled cmk-agent-ctl. example. Are the Linux systems affected by cmk-agent-ctl not starting using a IPv4 only setup?. 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 --password pass. server --site Main --user cmkadmin --verbose erscheint folgendes: image 1902×257 114 KB. Tested turning off firewall on 2019. Director of Registration and Certification at the address noted below. I am trying to register an agent installed on a Windows Server 2019. OK, let’s figure out who is doing what. I created the folder manually and changed ownership, and now the registration. 0. The agents' Agent Controller makes a request for registration to the server’s Agent Receiver, transmitting the data required to create the host. Hello. exe – register --trust-cert’ USAGE: cmk-agent-ctl. 1. Das wurde erst mit b3 geändert, gilt aber nur für die erste Installation. In your case doing proxy. 2. 0-1_all. Hi, the check-mk-agent is running (in xinetd mode) - trying to register a client is not possible because the cmk controller is looking for a socket (systemd) [root@jumphost]# cmk-agent-ctl status Version: 2. pem. The agents' Agent Controller makes a request for registration to the server’s Agent Receiver, transmitting the data required to create the host. slice (loaded active) and check_mk. Yes I did use the” cmk-agent-ctl register command, after that I got this message. 04. 0 or earlier. This morning all Windows Agents were suddenly no longer registered. agent_pairing") to their role. 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. 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. The Linux agent of Checkmk version 2. 0p16-1. 7 LTS Attempting to register windows host with TLS upon performing corresponding command cmk-agent-ctl. On every host I register that way I don’t get any agent data because of the Issue Host is registe. service should work as expected. sh script. The new TLS feature is need to register with cmk-agent-ctl register command. 4. So now you must de-register, on the host: cmk-agent-ctl delete-all --enable-insecure-connections Then on the CMK server: Properties of host, then menu entry Host > Remove TLS registration Afterwards connections should work albeit insecure. In any of these cases I can replace localhost with the actual hostname as well and the results don’t change (they’re identical). In the following Monitoring agents box, you specify two important options for the auto-registration. New install of CMK (via RPM) - trying to just register the localhost agent. service You can display command help with cmk-agent-ctl help, also for specific available subcommands, with cmk-agent-ctl help register for example. If it is the second option you should review roles & permissions. We tried setting a firewall rule to the port 8000, we tried using the automation user, the checkmk_admin user, and a random admin user. Hello. 0p10 Agent socket: operational IP allowlist: any Connection: localhost:8001/cmk UUID: 186f71b9-8d6f-41c6-be44-bb1f7c23ae7b Local: Connection. For Debian remove the cmk-agent and purge the configuration, than reinstall the agent, this purges the xinetd configuration. cmk-agent-ctl register -v -H HOSTNAME -P 'PASSWORD' -s SUBDOMAIN. But before we start with the actual. exe' register -s checkmk. CMK version:2. service: Scheduled restart job, restart counter is at 2. Or if you have a specific role for a admin user, go to: Roles & permissions and see this permissions. The Agent Controller cmk-agent-ctl is the component within the agent that is responsible for transporting the data collected by the agent script. Please provide me with the output of:. Dear friends of Checkmk, the new stable release 2. Agent Victoria, British Columbia 1970's Members Murray Acton ~ Guitar, Vocals Steve Andreas ~ Bass, Vocals Peter Bryant ~ Drums, Vocals Wayne Darling ~. 489987 +01:00] INFO [cmk_agent_ctl] srclib. 0. service should work as expected. 1. If the host is monitored by multiple sites, you must register to. ss -tulpn | grep 6556 tcp LISTEN 0 4096 *:6556 : users:((“cmk-agent-ctl”,pid=425,fd=9)) On the. 234. In case it is left out, the agent controller tries to query the port from the REST API. Checkmk. 6. ourcompany. 0 adds the Agent Controller and new features to the agent script. But if cmk-agent-ctl cannot be started, access fails. 1. Register the host on the Checkmk server by invoking cmk-update-agent register. Im justed deleted the automation User. $ cmk-update-agent register $ cmk-agent-ctl register. The folder /var/lib/cmk-agent was missing on my SUSE Linux Enterprise Micro 5. Install the suitable Checkmk agent on the server you want to monitor and add the server as a host in Checkmk. server --server mein. Troubleshooting. socket systemctl disable cmk-agent-ctl-daemon. 0 2. Bei einem Netzwerkdienst liegt es nahe, den Dienst über das Netzwerk abzufragen und über diesen Weg auch zu überwachen. We strongly recommend to enable TLS by registering the host to the site (using the `cmk-agent-ctl register`. deb Now the cmk-agent-ctl-daemon. 0p20 Debian 11. cmk-agent-ctl register --server cmkserver:443 --trust-cert --site cmksite --user username --password password --hostname monitoringhost On Debian 11 if got the following outputThe Linux agent of Checkmk version 2. 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. socket systemctl status cmk-agent-ctl-daemon. mschlenker (Mattias Schlenker) May 30, 2022, 6:11pm 4. Did not fix it. 4. However if I (faulty) try to register the host to my MAIN site first and THEN register to my slave site it works…The --hostname option of the register command refers to the host to be registered. You might apt-get remove the old Checkmk package when no site is using it any more. After the installation everything worked. This query is attempted both with and both queries fail, the controller aborts, otherwise, the result of the first sucessful query is. (We used cmk-agent-ctl proxy-register → deploy json to host → cmk-agent-ctl import . If you haven’t done yet please register the agent controller as well. latest (2. 0p6. Agent pairing; Read access to all hosts and folders; Write access to all hosts and folders; regards. echo y|sudo cmk-agent-ctl register --hostname vmansible01 –server vmcheckmk01. C:\ProgramData\checkmk\agent\config\cas\all_certs. 02. In order to register at a Checkmk site, the agent controller ( cmk-agent-ctl) needs to know, among others, the name of the server where the site is running and a. In your case. 1. 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…. Bulk Consent Manager. 2. 0p2 RAW Edition. Registration indeed is good. 1 does not exist. socket --now Issue the following command to register the host with your Checkmk server. OK, let’s figure out who is doing what. 2. sh script. Hi everybody, i’am new to checkmk and trying to configure the agent but getting the same message, i couldn’t understand why. net -i STAR -P 'XXXXX' -U automation -H sys-vbr02Output 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. 0-1_all. The user used for registering has admin privileges at checkmk and is able to see the global setting at the webui. I dont know why this folder could not be created during cmk agent installation from the cmk-agent-useradd. The Agent Receiver tells the Agent Controller. 0 2. 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. but here is everything ok. Yes I did use the” cmk-agent-ctl register command, after that I got this message. 04. Hello, I have a problem with enabling TLS in CheckMk 2. root@mgmonitor02:~# cmk-agent-ctl register --hostname MGMonitor --server localhost --site sitename --user omd --password omd ERROR [cmk_agent_ctl] Failed to discover agent receiver port from Checkmk REST API, both with and (MD) December 17, 2021, 4:52am 3. However if I (faulty) try to register the host to my MAIN site first and THEN register to my slave site it works… The --hostname option of the register command refers to the host to be registered. The hosts agent supports TLS, but it is not being used. Please provide me with the output of: systemctl status check-mk-agent. Ob der Host dabei für den Pull-Modus (alle Editionen) oder den Push-Modus (nur Cloud Edition) konfiguriert ist, macht für die Befehlsbeispiele keinen Unterschied. The Agent Controller cmk-agent-ctl is the component within the agent that is responsible for transporting the data collected by the agent script. 0. 0 did not yet use TLS, so port 8000 didn’t need to be exposed back then. You can either delete that file or remove xinetd altogether. 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. 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. 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. register ^. Specify the correct port when calling the registration command. I have the server up and running and ~50 VMs online, all is working well. mydomain. 2. 234. Bei der Registrierung der Agents ergibt sich bei beiden Server folgender Fehler: <HOST>:~ # cmk-agent-ctl register --hostname <HOSTNAME> --server 192. Anyhow when registering the usual way as I did it. Sie können sich mit cmk-agent-ctl help die Kommandohilfe anzeigen lassen, auch spezifisch für die verfügbaren Subkommandos, z. For example, the registration crashed with "500 Internal Server Error" for users without the permission "Write access to all hosts and folders". If the Agent Receiver accepts the request,. 0p25. I created the folder manually and changed ownership, and now the registration. 0:8282 --site cmk --user automation --password <RANDOMPASSWORD> Attempting to. 489987 +01:00] INFO [cmk_agent_ctl] srclib. Reload check_mk configuration using below command –. 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. Version: 2. 0) master 1. Redirecting to /bin/systemctl reload xinetd. 0p15. exe . 1. 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. Since the machine you’re trying to monitor is still 2. Address: 401 Hartwig Court, 1208 Wharf Street, Victoria, BC, V8W 2P5, CanadaCTP Distributors. So now you must de-register, on the host: cmk-agent-ctl delete-all --enable-insecure-connections Then on the CMK server: Properties of host, then menu entry Host > Remove TLS registration Afterwards connections should work albeit insecure. 1. 1. 0. 1. 0. Here it makes sense to pass the required registration information directly via the command. This might be a bug. service systemctl disable cmk-agent-ctl-daemon. g. d, only the check-mk-agent can be found: [root@jumphost]# cmk-agent-ctl register --hostname myclient \. And with the CMC: OMD [mysite]:~$ cmk -O. 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. Also, from the command line of the CentOS 7 server I can fetch the login. 45.