Die Registrierung erfolgt mit dem Agent Controller cmk-agent-ctl, der für die Konfiguration der Verbindungen eine Kommandoschnittstelle bietet. com:8000 --site itbetrieb --user automation --password xxxxxxxx --trust-cert -vv Version: 2. socket systemctl status cmk-agent-ctl-daemon. The controller is executed under the cmk-agent user, which has limited privileges, e. gierse,. This query is attempted both with and both queries fail, the controller aborts, otherwise, the result of the first sucessful query is. 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. e. But nothing worked. 1 gave 404 Not Found: Host 127. 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. Tested adding both a firewall run on the 2019 server for both 6556 in and out. If you want to use the agent in legacy mode, you need to disable cmk-agent-ctl in bakery rules. 0 the new Linux agent with the Agent Controller supports the registered, TLS-encrypted and compressed pull mode. 0-1_all. With telnet i can connect to the agent from the OMD server. c:2633). exe register --hostname xxx --server checkmk:8000 --site monitoring --user automation --… Hi, in the register-command use --server checkmk without the port, maybe there is a formatting problem with that. server --server mein. ourcompany. You can learn how to use the agent here. 1 the monitoring data sent from the monitored host to the monitoring server is TLS encrypted and compressed by default. to switch your agent into SSL mode (and not. 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. 1. I created the folder manually and changed ownership, and now the registration. 234. The port can be different in your case. 1. Registration indeed is good. service should work as expected. I’m running 2. folgenden Register Befehl benutzt. service: Start request repeated too quickly. . Checkmk Raw Edition 2. This worked perfectly fine in CMK 2. The Windows agent. So, Checkmk is ready. 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. The service is started. CMK version:2. This is realized by a new component on the monitored hosts: The Checkmk agent controller cmk-agent-ctl. to checkmk. It has to be a check_mk user, try with cmkadmin. 1. no login shell, and is used only for data transfer. this is initiated by the cloud host contacting CMK server behind our office. ColinP November 12, 2022, 12:44pm 1. The registration is done using the Agent Controller cmk-agent-ctl, which provides a command interface for configuring the connections. If you use the bakery, the agent was baked with enabled cmk-agent-ctl. It has to match the actual hostname used by the Checkmk server, found under “Setup” > “Hosts”. Agent pairing; Read access to all hosts and folders Since Checkmk version 2. You can either delete that file or remove xinetd altogether. 1. CMK version: 2. Deutsch. cmk-update-agent –v. 0p15. hinbekommen habe ich es nicht. 1. 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. The exact command line is this: cmk-agent-ctl register -v -H HOSTNAME -P 'PASSWORD' -s SUBDOMAIN. Redirecting to /bin/systemctl reload xinetd. 16-150300. This can be problematic if you are monitoring the same host from a site running Checkmk version 2. de --site monitoring --user cmkadmin. 0p10 Agent socket: operational IP allowlist: any Connection: localhost:8001/cmk UUID: 186f71b9-8d6f-41c6-be44-bb1f7c23ae7b Local: Connection. 1. 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. This might be a bug. error: The subcommand ‘register --trust-cert’ wasn’t recognized Did you mean ‘register’? If you believe you received this message in error, try re-running with ‘cmk-agent-ctl. DOMAIN. mschlenker (Mattias Schlenker) May 30, 2022, 6:11pm 4. 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. I created the folder manually and changed ownership, and now the registration. 1 server? You have to run the cmk-agent-ctl on the machine running the agent, not from the server. Unfortunately, the problem remains: C:WINDOWSsystem32>"C:Program Files (x86)checkmkservicecmk-agent-ctl. check_mk agent runs on top of xinetd service in Linux. XXX. 0 2. Checkmk. This might be a bug. 0. This is a bug of the client cmk-agent-ctl. 1 sec. NOTE: A registered host will refuse all unencrypted connections. service cmk-agent-ctl-daemon. cmk-agent-ctl delete-all --enable-insecure-connections; cmk-agent-ctl status; cmk-agent-ctl register --hostname $(hostname -f) --server checkmk21-prod. g. 2 system. to checkmk. 0p2 RAW Edition. ourcompany. 1. serviceThe REST in the name of the REST API stands for REpresentational State Transfer, and it describes an architecture for the exchange of data on distributed systems — especially for web. exe – register --trust-cert’ USAGE: cmk-agent-ctl. domain. 0 then you will find the systemd unit files inside. root@mgmonitor02:~# cmk-agent-ctl register --hostname MGMonitor --server localhost --site sitename --user omd --password omd ERROR [cmk_agent_ctl] Failed to discover agent receiver port from Checkmk REST API, both with and (MD) December 17, 2021, 4:52am 3. To register the agent, I ran: sudo cmk-agent-ctl register --hostname localhost --server localhost:8001 --site cmk --user cmkadmin That gives: > sudo cmk-agent-ctl status Version: 2. C:\Program Files (x86)\checkmk\service>cmk-agent-ctl. 0 did not yet use TLS, so port 8000 didn’t need to be exposed back then. Since the machine you’re trying to monitor is still 2. Hello. The client must set the version 0 for the CSRSo now you must de-register, on the host: cmk-agent-ctl delete-all --enable-insecure-connections Then on the CMK server: Properties of host, then menu entry Host > Remove TLS registration Afterwards connections should work albeit insecure. de:8000 --site mon --user admin. This is in preparation for the 2. Agent Registration (Pairing) for TLS Encryption. But if cmk-agent-ctl cannot be started, access fails. The cmk-agent user is created during the installation of the agent. Did not fix it. cmk-agent-ctl register --hostname localhost --server server:8000 --site mysite --user cmkadmin -vv. If the host is monitored by multiple sites, you must register to. The agent control use the port 8000 for communication. ╰─$ sudo cmk-agent-ctl status Version: 2. The Windows agent. 0 adds the Agent Controller and new features to the agent script. 0 or earlier. 0p20 Debian 11 Hi everyone, below is the output of the “cmk-agent-ctl. cmk-agent-ctl register -v -H HOSTNAME -P 'PASSWORD' -s SUBDOMAIN. Sie können sich mit cmk-agent-ctl help die Kommandohilfe anzeigen lassen, auch spezifisch für die verfügbaren Subkommandos, z. 0p15. sh script. Currently, only systemd on the x86_64 platform is. 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. Please provide me with the output of:. If you want to use the agent in legacy mode, you need to disable cmk-agent-ctl in bakery rules. There were some user permission issues with the agent registration (cmk-agent-ctl register. The Agent Controller cmk-agent-ctl is the component within the agent that is responsible for transporting the data collected by the agent script. Sehr beliebt ist z. Our Manufacturers. 5. Einen auf den Server auf der Docker Service läuft (OpenSuse Tumbleweed), sowie einen Windows Server 2016. We’ll come back to you to ask for. Bei einem Netzwerkdienst liegt es nahe, den Dienst über das Netzwerk abzufragen und über diesen Weg auch zu überwachen. DOMAIN. socket systemctl status cmk-agent-ctl-daemon. Could you please check who is claiming port 6556?. 0 onwards), you have to add the following rights (internal name “general. exe . I dont know why this folder could not be created during cmk agent installation from the cmk-agent-useradd. After that I got the error: Version: 2. Das wurde erst mit b3 geändert, gilt aber nur für die erste Installation. But if cmk-agent-ctl cannot be started, access fails. After the installation everything worked. 40. ). 1. 0. exe greift auf ihn zu. I am trying to register an agent installed on a Windows Server 2019. The hostname “localhost” was wrong. sh script. XXX. The cmk-agent user is created during the installation of the agent. sh script. 0p16-1. The user used for registering has admin privileges at checkmk and is able to see the global setting at the webui. 0-1_all. 1. socket --now Issue the following command to register the host with your Checkmk server. pem. socket), aborting``` If I als run the daemon: ```cmk-agent-ctl daemon &``` It starts responding to status command, but still won't register the node: ```root@adfb306b5d58:/# cmk-agent-ctl status Version: 2. 0p20 Debian 11. service. 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). 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. 75:8000 --site robot --user cmkadmin --password password -vv. ColinP November 12, 2022, 12:44pm 1. domain. I created the folder manually and changed ownership, and now the registration. g. 0. The Agent Controller cmk-agent-ctl is the component within the agent that is responsible for transporting the data collected by the agent script. The cmk-agent user was sucessfully created. As suggested in another post i read i checked:-that port 8000 is open-omd config show | grep AGENT_RECEIVER show port 8000The registration then aborts, since we cannot continue without knowing the correct port. Checkmk Community CMK Agent Controller not working (CentOS 7) - CMK 2. DOMAIN. OS version: Rocky Linux release 9. 0. If there are leftovers from 2. OS: Windows Server 2019. We strongly recommend to enable TLS by registering the host to the site (using the `cmk-agent-ctl register` command on the monitored host). CMK version: 2. Der Linux-Agent der Checkmk-Version 2. 1. Please provide me with the output of: systemctl status check-mk-agent. 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. mschlenker (Mattias Schlenker) May 30, 2022, 6:11pm 4. Thanks for your responses! @cyr0nk0r I rebaked the Agent using HTTP only and got rid of the. 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. 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. omd update. omd stop mysite. 0 OS Version: Appliance 1. gerhards. exe” register --site yousitename --server yourcmkserver --user automation --hostname windows_box_hostname --password1. This is the command we used to register the agent: C:Windowssystem32> "C:Program Files (x86)checkmkservicecmk-agent-ctl. If you want to use the agent in legacy mode, you need to disable cmk-agent-ctl in bakery rules. py page via wget when I supply the correct credentials. The cmk-agent user was sucessfully created. It’s hard to tell where exactly it comes from. The cmk-agent user is created during the installation of the agent package. 4. B. 1. 0. Das funktioniert. 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. service. cmk-agent-ctl register --hostname app-a. New replies are no longer allowed. Warning: This version breaks the agent receiver on IPv4-only Checkmk servers which have completely disabled IPv6 support on kernel level. 0. This worked perfectly fine in CMK 2. 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. 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. 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. You’ll also need to do something like cmk-agent-ctl register. This might be a bug. Even with custom checks. Checkmk. 0 or earlier. Agent Controller is not running, no config files can be found in the systemd directory and within xinetd. This morning all Windows Agents were suddenly no longer registered. I try with: cmk-agent-ctl register --hostname MYHOST --server CMKHOST --site MYSITE --user cmkadmin --password ‘MYPASSWORD’ Then I get the. DOMAIN. Dazu verwendet Checkmk teils eigene, teils bereits existierende Plugins. 0. 2. 04. You have to use cmk-agent-ctl. Ultimately, Checkmk was showing the agents were not registered because they were not in fact registered. . sh script. 0p20 Debian 11. no login shell, and is used only for data transfer. I created the folder manually and changed ownership, and now the registration. via journalctl -u cmk-agent-ctl-daemon. This might be a bug. 1. Ping works, Agent reports Communication Failed: timed out. Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins) sudo: cmk: command not found. The registration then aborts, since we cannot continue without knowing the correct port. 0. rs:41: Loaded config from. I am trying to register an agent installed on a Windows Server 2019. 1. Monitoring Windows - The new agent for Windows in detail. I’m facing the same issue (and also running checkmk raw in a Docker container) on a X86_64 Debian Bullseye host. I dont know why this folder could not be created during cmk agent installation from the cmk-agent-useradd. Now you need to register the agnet for TLS handshake. 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. The cmk-agent user was sucessfully created. In checkmk for the host service got below warning. Hello, I updated my CheckMK installation to firmware 1. B. In your case. 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. 2 system. Hi everyone, below is the output of the “cmk-agent-ctl. 0p14 Agent socket: operational IP allowlist: 10. Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins) sudo: cmk: command not found. This might be a bug. Upon first try, “cmk-agent-ctl register. I dont know why this folder could not be created during cmk agent installation from the cmk-agent-useradd. 0 did not yet use TLS, so port 8000 didn’t need to be exposed back then. Since the machine you’re trying to monitor is still 2. I was using 8101 so after i set this it worked perfectly. CMK version: 2. The controller is executed under the cmk-agent user, which has limited privileges, e. CMK 2. 0 2. TLD -i SITE-NAME -U USERNAME This worked perfectly fine in CMK 2. Nun wird der Service „CheckMK Agent“ – Service mit Warning angezeigt und es liegt wohl daran. Hi @robin. OS is Ubuntu 22. 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. no login shell, and is used only for data transfer. 1. exe' register -s checkmk. service1. 0b4_0 raw OS: Ubuntu 20. C:Program Files (x86)checkmkservice>cmk-agent-ctl. You can display command help with cmk-agent-ctl help, also for specific available subcommands, with cmk-agent-ctl help register for example. socket (failed failed) so I stopped and disabled them, then did systemctl daemon-reload and systemctl. NOTE: A registered host will refuse all unencrypted connections. Another gotcha I came across was trying to run the register, make sure you are using admin cmd ( which you are ), then cut and paste the command in full : “C:Program Files (x86)checkmkservicecmk-agent-ctl. When I try to register the agent on the host system with: cmk-agent-ctl register --hostname some_hostname --server 127. I installed the CheckMK Agent on a TrueNAS SCALE host. Linux: cmk-agent-ctl register --server meinserver. Fixed that with create a new User “automation” and created the file automation. 1. 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). Thanks for your responses! @cyr0nk0r I rebaked the Agent using HTTP only and got rid of the. Checkmk Community Trouble after upgrading to 2. 514. The Agent Controller cmk-agent-ctl is the component within the agent that is responsible for transporting the data collected by the agent script. XXX. 5. Address: 401 Hartwig Court, 1208 Wharf Street, Victoria, BC, V8W 2P5, CanadaCTP Distributors. If you use the bakery, the agent was baked with enabled cmk-agent-ctl. deb Now the cmk-agent-ctl-daemon. 0. Just like it’s the case for the /etc/cmk-update-agent. Contact an admin if you think this should be re-opened. 1. 0p23 of Checkmk is ready for download. 2 system. apt remove --purge check-mk-agent dpkg -i check-mk-agent_2. 1 Like. 14 --site burana_modena --user automation -. Now you need to register the agnet for TLS handshake. 1 Like. d/ there might be a residual configuration file called checkmk or similar. 1. cmk-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. Bei der Registrierung der Agents ergibt sich bei beiden Server folgender Fehler: <HOST>:~ # cmk-agent-ctl register --hostname <HOSTNAME> --server 192. rs:41: Loaded config from. We strongly recommend to enable TLS by registering the host to the site (using the `cmk-agent-ctl register`. 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. This is the reason: (sorry, article is currently in translation)You can display command help with cmk-agent-ctl help, also for specific available subcommands, with cmk-agent-ctl help register for example. 5. 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. I am experiencing a problem with registering the agent: CMK version: 2. Haven’t done anything else with the install yet. I had to add the checkmk user again. 0p9. 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. You’ll also need to do something like cmk-agent-ctl register. 1. After a reboot the cmk-agent-ctl-daemon and the check-mk-agent. 2. 1. 5. If it is not that, double-check your TLS registration process per our official guide: Monitoring Linux - The new agent for Linux in detail. I think the docs aren’t clear on what should be done if ss -tulpn | grep 6556 shows that systemd or xinetd are listening on 6556 instead of cmk-agent-ctl, and what one should do to have cmk-agent-ctl working. net -i STAR -P 'XXXXX' -U automation -H sys-vbr02The folder /var/lib/cmk-agent was missing on my SUSE Linux Enterprise Micro 5. Agent Registration (Pairing) for TLS Encryption. 04 LTS. mit cmk-agent-ctl help register. ago. So, get this from “omd config show” on your CMK. 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. 1. 0. CMK 2. 2. state. deb. cmk-agent-ctl register --hostname 1. Sie können sich mit cmk-agent-ctl help die Kommandohilfe anzeigen lassen, auch spezifisch für die verfügbaren Subkommandos, z. socket systemctl status cmk-agent-ctl-daemon. I dont know why this folder could not be created during cmk agent installation from the cmk-agent-useradd. to switch your agent into SSL mode (and not legacy mode), but that’s a different subject. For Debian remove the cmk-agent and purge the configuration, than reinstall the agent, this purges the xinetd configuration. service: Scheduled restart job, restart counter is at 2. mschlenker (Mattias Schlenker) July 8, 2022, 8:12am 4. 1. 4. 0. 2 system. Yes I did use the” cmk-agent-ctl register command, after that I got this message. mschlenker (Mattias Schlenker) July 8, 2022, 8:12am 4. 0p22 agent by running cmk-agent-ctl on the 2. I am not able to debug the cmk-agent-ctl since it is in binary form: You can display command help with cmk-agent-ctl help, also for specific available subcommands, with cmk-agent-ctl help register for example. 1. socket'. If there are leftovers from 2. Use the cmk-agent-ctl register command to register. 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. The port can either be included in the server name argument ( -s ), or it can be left out. 0p11 on Debian 11. 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). exe to register the Agent Controller. For Debian remove the cmk-agent and purge the configuration, than reinstall the agent, this purges the xinetd configuration. domain. Now the cmk-agent-ctl-daemon. secret with the password as String. You might apt-get remove the old Checkmk package when no site is using it any more. 1. ColinP November 12, 2022, 12:44pm 1. exe register --hostname HOST --server SERVER: 8001 --site SITE --user USER. Einen auf den Server auf der Docker Service läuft (OpenSuse Tumbleweed), sowie einen Windows Server 2016. 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. 0) master 1. WalterH (Walter Hofstädtler) May 30, 2022, 5:42pm 31. omd start. Für Linux habe ich cmk-agent-ctl register --hostname xxx --server. The port can either be included in the server name argument ( -s ), or it can be left out.