0p20 Debian 11. copy the cmk-agent-ctl for the architecture you are using to e. Password for user ‘cmkadmin’: Successfully registered agent of host “monitor2” for deployment. Wie hier beschrieben, sollten alle Bedingungen für eine TLS encryption erfüllt sein. For this, however, the Agent Controller must be started as a background process (daemon) by the init system on the host on which it is to be installed. 04 LTS. Bei der Registrierung wurde in den Anleitungen von chekmk mit dem “automation” User gearbeitet, ich habe es mit dem cmkadmin gemacht was bei den. 0. Disable TLS registration on the CMK server: Properties of host, menu entry Host > Remove TLS registration; Afterwards, ss should show xinetd claiming the connection test should work. Die Registrierung klappt einfach nicht (die Hosts sind aber auch schon aus der 2. Please provide me with the output of: systemctl status check-mk-agent. Hi @robin. After the installation everything worked. 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. Unfortunately, the problem remains: C:\WINDOWS\system32>"C:\Program Files (x86)\checkmk\service\cmk-agent-ctl. Hello David, unfortunately --trust-cert changes nothing. Anschließend installieren Sie den Agenten mit allen Konfigurationsdetails für den zu überwachenden Host durch einen abschließenden Aufruf des Agent-Updater-Plugins. I dont know why this folder could not be created during cmk agent installation from the cmk-agent-useradd. exe' register -s checkmk. Yes I did use the” cmk-agent-ctl register command, after that I got this message. Im talking about the network proxy admin and/ o the admin of the client. 57. wants/check-mk-agent. The agent control use the port 8000 for communication. 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. 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. Contact an admin if you think this should be re-opened. apt remove --purge check-mk-agent dpkg -i check-mk-agent_2. 2 system. This topic was automatically closed 365 days after the last reply. {"payload":{"allShortcutsEnabled":false,"fileTree":{"agents":{"items":[{"name":"cfg_examples","path":"agents/cfg_examples","contentType":"directory"},{"name. 0 adds the Agent Controller and new features to the agent program. 1. exe register --trust-cert -vv” command: [2023-02-10 12:54:18. Now the cmk-agent-ctl-daemon. Our Manufacturers. 0 did not yet use TLS, so port 8000 didn’t need to be exposed back then. The cmk-agent user is created during the installation of the agent. The folder /var/lib/cmk-agent was missing on my SUSE Linux Enterprise Micro 5. cmk-agent-ctl register -v -H HOSTNAME -P 'PASSWORD' -s SUBDOMAIN. TLD -i SITE-NAME -U USERNAME. 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. g. 1. exe' register -s checkmk. deb Monitored System (Host): Checkmk Agent version: 2. Das funktioniert. 0 did not yet use TLS, so port 8000 didn’t need to be exposed back then. 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. . If you want to use the agent in legacy mode, you need to disable cmk-agent-ctl in bakery rules. 1. root@kerneltalks # service xinetd reload. However, the certificate rolled out by the agent updater ruleset seems to be insufficient. service: Scheduled restart job, restart counter is at 2. Update: Nervermind. 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. agent_pairing") to their role. 1. The Agent Controller cmk-agent-ctl is the component within the agent that is responsible for transporting the data collected by the agent script. 1. 0. 0 did not yet use TLS, so port 8000 didn’t need to be exposed back then. 0 2. 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. 0 did not yet use TLS, so port 8000 didn’t need to be exposed back then. Der für die verschlüsselte Kommunikation mit dem Checkmk-Server zuständige Agent Controller cmk-agent-ctl. 0 or earlier. The cmk-agent user is created during the installation of the agent. 2. mydomain. Rg, ChristianWindows installer ¶. 234. 0p10 Agent socket: operational IP allowlist: any Connection: localhost:8001/cmk UUID: 186f71b9-8d6f-41c6-be44-bb1f7c23ae7b Local: Connection. g. 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. 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”). deb. But if cmk-agent-ctl cannot be started, access fails. 0 Agent socket: inoperational (!!) IP allowlist: anyyour solution does not work it does not allow me to automatically register my agent after its installation Capture d'écran 2023-09-28 120008 1443×60 18 KB aeckstein (Andre Eckstein) September 29, 2023, 2:38pmCMK version: 2. 1 Like. In checkmk for the host service got below warning. 1 gave 404 Not Found: Host 127. 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. 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. Record Keeping Keep a copy of your application and all submitted documents for your records. 0. Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins) sudo: cmk: command not found. com. . net -i STAR -P 'XXXXX' -U automation -H sys-vbr02Apparently I’m too stupid to find the correct call for agent registration via REST API in any documentation. 10. Linux überwachen - Der neue Agent für Linux im Detail. CMK version: 2. I try with: cmk-agent-ctl register --hostname MYHOST --server CMKHOST --site MYSITE --user cmkadmin --password ‘MYPASSWORD’ Then I get the message: 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. To summarize: If you want to customize a Checkmk configuration and activate the changes, in Nagios you will subsequently require: OMD [mysite]:~$ cmk -R. 1 the monitoring data sent from the monitored host to the monitoring server is TLS encrypted and compressed by default. Are you trying to register the 2. Specify the correct port when calling the registration command. 0p10 Agent socket: operational IP allowlist: any Connection: localhost:8001/cmk UUID: 186f71b9-8d6f-41c6-be44-bb1f7c23ae7b Local: Connection. de--site meine_site --user user --password password --hostname mein-host. no login shell, and is used only for data transfer. Anders (Anders) November 27, 2022, 4:25pm 1 CMK version: 2. You have to use cmk-agent-ctl. service: Scheduled restart job, restart counter is at 2. Die Registrierung erfolgt mit dem Agent Controller cmk-agent-ctl, der für die Konfiguration der Verbindungen eine Kommandoschnittstelle bietet. B. We strongly recommend to enable TLS by registering the host to the site (using the cmk-agent-ctl register command on the monitored host). 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. 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. redacted. Agent pairing; Read access to all hosts and foldersSince Checkmk version 2. cmk-update-agent register -v -H COMPUTERNAME -U register -S xxxxxxxxxxxxxxxxx. net:8000--site cmk –user automation --password MYTOKEN sudo reboot (To verify it continues to work post-reboot) andreas-doehler (Andreas) August 15, 2022, 7:25pm 6. service should work as expected. service should work as expected. exe' register -s checkmk. 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. Deutsch. Jun 17 10:57:15 nc systemd[1]: cmk-agent-ctl-daemon. You might apt-get remove the old Checkmk package when no site is using it any more. The cmk-agent user was sucessfully created. 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. In your case. when i executing the command remotely via powershell i’m. 1. apt remove --purge check-mk-agent dpkg -i check-mk-agent_2. 0b4_0 raw OS: Ubuntu 20. mydomain. XXX. g. service1. 0. exe” ^. andreas-doehler (Andreas) January 8, 2023, 3:48pm 2. Registration indeed is good. Caused by: 0: Failed to set group id 998 corresponding to user cmk-agent 1: EPERM: Operation not permitted However, when I run the command using sudo, I end up with the following output. B. WalterH (Walter Hofstädtler) May 30, 2022, 5:42pm 31. CMK 2. Hi everyone, below is the output of the “cmk-agent-ctl. server --server mein. socket systemctl status cmk-agent-ctl-daemon. Are you aware of any automation scripts/commands methods with registering agent/TLS for over 800+ hosts? Hello together, i got the an Simular Issue after an Upgrade from the 2. 0 2. All commands to be executed on the host to be monitored. We strongly recommend to enable TLS by registering the host to the site (using the `cmk-agent-ctl register`. apt remove --purge check-mk-agent dpkg -i check-mk-agent_2. 04. For Debian remove the cmk-agent and purge the configuration, than reinstall the agent, this purges the xinetd configuration. 1 Like. This might be a bug. 1. 0 2. 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 am trying to add new servers with: amnesiac ≫ [ 10:47:25 ] ≫ ~ $ cmk-agent-ctl register-new --server. cmk-update-agent register -v -H COMPUTERNAME -U register -S xxxxxxxxxxxxxxxxx. Registered and installed a Let’s Encrypt certificate using certbot; I can now access the web UI without a problem using but after setting up the host I can’t install an agent using the following command: cmk-agent-ctl register -H -s monitoring. 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. local -i home -U cmkadmin ERROR [cmk_agent_ctl] Failed to discover agent receiver port from Checkmk REST API, both. 0. The Agent Receiver tells the Agent Controller. Password: explicit. Installed the agent on a Server (Windows and Ubuntu) Registered the agent with the following command: cmk-agent-ctl register --hostname --server --site --user automation --password. 0p10 Agent socket: operational IP allowlist: any Connection: localhost:8001/cmk UUID: 186f71b9-8d6f-41c6-be44-bb1f7c23ae7b Local: Connection. com:443 --site howtoforge --user cmkadmin So before you take care of the configuration itself, enable the Activation of automatic agent updates option under Setup > General > Global Settings > Automatic Agent Updates: To implement the updates, follow these steps: First open Setup > Agents > Windows, Linux, Solaris, AIX and select Agents > Automatic updates: See Prerequisites for a list. Install the suitable Checkmk agent on the server you want to monitor and add the server as a host in Checkmk. 6 LTS Package: check-mk-raw-2. 1. mit cmk-agent-ctl help register. Hi everyone, below is the output of the “cmk-agent-ctl. 1 Like. sh script. 2 system. This component is separate from the Agent Updater. ). As suggested in another post i read i checked:-that port 8000 is open-omd config show | grep AGENT_RECEIVER show port 8000It seams you use a Debian system. You can confirm this by telnetting from your OMD site to the monitored server on tcp port 6556:Checkmk Enterprise Edition 2. Haven’t done anything else with the install yet. I dont know why this folder could not be created during cmk agent installation from the cmk-agent-useradd. CMK 2. Sehr beliebt ist z. service should work as expected. The port can either be included in the server name argument ( -s ), or it can be left out. exe' register -s checkmk. Agent Registration (Pairing) for TLS Encryption. NOTE: A registered host will refuse all unencrypted connections. 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. However, there is a difference between console output of “cmk-agent-ctl status” and “cmk_agent_ctl_status” from agent output (downloaded via “Download. 1. If you forward port 9800 to 8000 then you also have to use port 9800 in your register command. CMK version: 2. Welcome to the Checkmk User Guide. Agent Victoria, British Columbia 1970's Members Murray Acton ~ Guitar, Vocals Steve Andreas ~ Bass, Vocals Peter Bryant ~ Drums, Vocals Wayne Darling ~. So if you make any changes to the config file then you need to reload configuration or restart the agent. The cmk-agent user is created during the installation of the agent. DOMAIN. 1. slice (loaded active) and check_mk. 04 Command used for registration: cmk-agent-ctl. 1. Checkmk Appliance Cluster. 2 system. When I try to register the agent on the host system with: cmk-agent-ctl register --hostname some_hostname --server 127. 2 Delete all directories/files of the agent controller from the host. de --site monitoring --user cmkadmin. 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. 0. gerhards. 1. 2. Specify the correct port when calling the registration command. In your case doing proxy. 1. 1 server? You have to run the cmk-agent-ctl on the machine running the agent, not from the server. 0. socket --now Issue the following command to register the host with your Checkmk server. g. json to keep the FW as closed as possible – I cannot test it with the bakery, we sadly have to use CRE+Puppet) kai226 June 14, 2023, 11:57am 4. Yes I did use the” cmk-agent-ctl register command, after that I got this message. Hi everyone, below is the output of the “cmk-agent-ctl. The registration is done using the Agent Controller cmk-agent-ctl, which provides a command interface for configuring the connections. TLD -i SITE-NAME -U USERNAME This worked perfectly fine in CMK 2. CMK Version: CRE 2. cmk-agent-ctl register --hostname localhost --server server:8000 --site mysite --user cmkadmin -vv. Could you please check who is claiming port 6556?. 0p6. 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. OS version: Rocky Linux release 9. Das funktioniert und auch eventuelle Fehler: TLS is not activated on monitored host verschwinden. There were some user permission issues with the agent registration (cmk-agent-ctl register. en. Contact an admin if you think this should be re-opened. 0p20 Debian 11. The hostname “localhost” was wrong. py script to the host to be monitored (both can be found at ~/share/check_mk/agents/plugins on the Checkmk server). in the host run the register checkmk agent. rs:14: starting [2023-02-10 12:54:18. CMK version: 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. Jun 17 10:57:15 nc systemd[1]: Stopped Checkmk agent controller daemon. I am not able to debug the cmk-agent-ctl since it is in. 1. secret with the password as String. 2 system. The agents' Agent Controller makes a request for registration to the server’s Agent Receiver, transmitting the data required to create the host. focal_amd64. 1. Welcome to Checkmk. Wie Sie den Agenten nutzen, erfahren Sie hier. service. via journalctl -u cmk-agent-ctl-daemon. Upon first try, “cmk-agent-ctl register. Even with custom checks. 5 LTS I have had no issues registering the agent on internal servers, but I have two servers hosted in the cloud which are fully connected and have appropriate NAT rules and local firewall rules to allow the communication, but registering results in the error: ERROR [cmk_agent_ctl] Operation. 1. socket systemctl status cmk-agent-ctl-daemon. 1. Director of Registration and Certification at the address noted below. 0 did not yet use TLS, so port 8000 didn’t need to be exposed back then. 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. You already entered the right command with openssl s_client -connect SLAVE01:443. 1. Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins) sudo: cmk: command not found. Either related to the recent update to p12 or to a migration vom Ubuntu 20 to 22 (new server with new checkmk installation, restored site from backup). This is in preparation for the 2. 0 then you will find the systemd unit files. 1. This topic was automatically closed 365 days after the last reply. exe” register --site yousitename --server yourcmkserver --user automation --hostname windows_box_hostname --password 1. 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). service: Scheduled restart job, restart counter is at 2. d, only the check-mk-agent can be found: [root@jumphost]# cmk-agent-ctl register --hostname myclient \. cmk-update-agent register -s monitor2 -i mysite -H monitor2 -U cmkadmin. I created the folder manually and changed ownership, and now the registration. Checkmk Enterprise Edition 2. 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. 0. 2. 0. The cmk-agent user was sucessfully created. If I try to register it with the command: cmk-agent-ctl register --detect-proxy --hostname FOO --server bla. CMK 2. 0. ERROR [cmk_agent_ctl] Failed to run as user 'cmk-agent'. Tahnks a lot for your tip. 2 system. With telnet i can connect to the agent from the OMD server. sh script. Das wurde erst mit b3 geändert, gilt aber nur für die erste Installation. 1. local --server 10. rs:14: starting [2023-02-10 12:54:18. 0 onwards), you have to add the following rights (internal name "general. The systemd is version 246. Back on server, Add server under hosts. This query is attempted both with and both queries fail, the controller aborts, otherwise, the result of the first sucessful query is. When you have done all this, install the agent again and it will work properly. The exact command line is this: cmk-agent-ctl register -v -H HOSTNAME -P 'PASSWORD' -s SUBDOMAIN. If it is the second option you should review roles & permissions. It’s hard to tell where exactly it comes from. Für Linux habe ich cmk-agent-ctl register --hostname xxx --server. WARNING: The Agent Controller is operating in an insecure mode! To secure the connection run cmk-agent-ctl register. rs:41: Loaded config from. 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. Attempting to register at checkmk. B. pem. Copy the cmk-update-agent binary or the cmk_update_agent. 1. I’ve installed the agent and succesfully register on OS windows 7x64 and. 0p15. Register. 6. 488899 +01:00] INFO [cmk_agent_ctl] srcmain. Upon first try, “cmk-agent-ctl register. 0p9. 0 the new Linux agent with the Agent Controller supports the registered, TLS-encrypted and compressed pull mode. 2. apt remove --purge check-mk-agent dpkg -i check-mk-agent_2. mydomain. 488899 +01:00] INFO [cmk_agent_ctl] srcmain. Nun wird der Service „CheckMK Agent“ – Service mit Warning angezeigt und es liegt wohl daran. 04. no login shell, and is used only for data transfer. I had to add the checkmk user again. 4. 1. service systemctl stop check-mk-agent. to checkmk. exe' register -s checkmk. It seams you use a Debian system. The Agent Receiver tells the Agent Controller. The agent-receiver of the first checkmk instance usually listens on port 8000, this is the port you need the agent to register against. The exact command line is this: cmk-agent-ctl register -v -H HOSTNAME -P 'PASSWORD' -s SUBDOMAIN. no login shell, and is used only for data transfer. DOMAIN. 1. The windows installer supports the following command line arguments: /S - runs the installer silently /D= - sets the default installation directory. d/ there might be a residual configuration file called checkmk or similar. cre default. TLD -i SITE-NAME -U USERNAME This worked perfectly fine in CMK 2. As suggested in another post i read i checked:-that port 8000 is open-omd config show | grep AGENT_RECEIVER show port 8000Jun 17 10:57:15 nc systemd[1]: cmk-agent-ctl-daemon. socket systemctl status cmk-agent-ctl-daemon. mschlenker (Mattias Schlenker) May 30, 2022, 6:11pm 4. 5. 489987 +01:00] INFO [cmk_agent_ctl] srclib. 2 release. 0p25. to checkmk.