rs:14: starting [2023-02-10 12:54:18. Für Linux habe ich cmk-agent-ctl register --hostname xxx --server. 6 LTS Package: check-mk-raw-2. 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. 0p6. Anyhow when registering the usual way as I did it. OS version: TrueNAS SCALE 22. de--site meine_site --user user --password password --hostname mein-host. Deutsch. If it is xinetd remove the. 2. 0. 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. When you have done all this, install the agent again and it will work properly. Upon first try, “cmk-agent-ctl register. Segmentation fault (core dumped) The same result also with the all needed parameters for the registration. check_mk agent runs on top of xinetd service in Linux. slice (loaded active) and check_mk. However, the certificate rolled out by the agent updater ruleset seems to be insufficient. 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. socket (failed failed) so I stopped and disabled them, then did systemctl daemon-reload and systemctl. In Checkmk version 2. 1. I am trying to register an agent installed on a Windows Server 2019. When trying to register the checkmk agent: Access is denied:. cmk-agent-ctl register -v -H HOSTNAME -P 'PASSWORD' -s SUBDOMAIN. service should work as expected. We will be asked for some information about the host. The folder /var/lib/cmk-agent was missing on my SUSE Linux Enterprise Micro 5. 234. 1. In your case. Now the service is active and listening. The controller is executed under the cmk-agent user, which has limited privileges, e. 1. This might be a bug. If you use the bakery, the agent was baked with enabled cmk-agent-ctl. 6. g. This can be problematic if you are monitoring the same host from a site running Checkmk version 2. OS version: Ubuntu Server. 0p22 agent by running cmk-agent-ctl on the 2. 0 did not yet use TLS, so port 8000 didn’t need to be exposed back then. Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins) sudo: cmk: command not found. There were some user permission issues with the agent registration (cmk-agent-ctl register. 0p9. 0 the new Linux agent with the Agent Controller supports the registered, TLS-encrypted and compressed pull mode. eu --site monitoring ^. TLD -i SITE-NAME -U USERNAME. After a reboot the cmk-agent-ctl-daemon and the check-mk-agent. The new TLS feature is need to register with cmk-agent-ctl register command. 1. Hello. Here it makes sense to pass the required registration information directly via the command. 0 adds the Agent Controller and new features to the agent program. ” 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. 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. 1. If the host is monitored by multiple sites, you must register to all of them. 1. Version: 2. CMK version: 2. The agent control use the port 8000 for communication. mschlenker (Mattias Schlenker) July 8, 2022, 8:12am 4. Are the Linux systems affected by cmk-agent-ctl not starting using a IPv4 only setup?. net -i STAR -P 'XXXXX' -U automation -H sys-vbr02The hosts agent supports TLS, but it is not being used. service: Scheduled restart job, restart counter is at 2. ourcompany. en. 3. 1. Einen auf den Server auf der Docker Service läuft (OpenSuse Tumbleweed), sowie einen Windows Server 2016. rs:41: Loaded config from. 0p10 OS: linux The hosts agent supports TLS, but it is not being used. 1. I am trying to register an agent installed on a Windows Server 2019. 0-1_all. 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. 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. service: Scheduled restart job, restart counter is at 2. net -i STAR -P 'XXXXX' -U automation -H sys-vbr02Registration indeed is good. 02. ss -tulpn | grep 6556 This should be cmk-agent-ctl in daemon mode. 0p15. In your case. After the installation everything worked. CMK version: 2. WalterH (Walter Hofstädtler) May 30, 2022, 5:42pm 31. Redirecting to /bin/systemctl reload xinetd. The Windows agent. 0 the new Linux agent with the Agent Controller supports the registered, TLS-encrypted and compressed pull mode. Der Benutzer cmk-agent wird während der Installation des Agentenpakets. service systemctl disable cmk-agent-ctl-daemon. 0:8282 --site cmk --user automation --password. CMK version: 2. this is initiated by the cloud host contacting CMK server behind our office. In your case doing proxy. 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. The agent controller is well deployed and configured : “C:Program Files (x86)checkmkservicecmk-agent-ctl. 0 then you will find the systemd unit files inside. This can be problematic if you are monitoring the same host from a site running Checkmk version 2. 488899 +01:00] INFO [cmk_agent_ctl] srcmain. Currently, only systemd on the x86_64 platform is. omd update. 1. 2. For this, I’m running following command on client # cmk-agent-ctl register --hostname `hostname -f` --server mon. 0p27 OS version: Ubuntu 20. monitoring. This query is attempted both with and both queries fail, the controller aborts, otherwise, the result of the first sucessful query is. ColinP November 12, 2022, 12:44pm 1. mschlenker (Mattias Schlenker) July 8, 2022, 8:12am 4. This was not expected as I created rules in “Agent controller” {'agent_ctl_enabled': True}. I dont know why this folder could not be created during cmk agent installation from the cmk-agent-useradd. g. 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) 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. 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. apt remove --purge check-mk-agent dpkg -i check-mk-agent_2. XXX. You can display command help with cmk-agent-ctl help, also for specific available subcommands, with cmk-agent-ctl help register for example. no login shell, and is used only for data transfer. 0. 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. via journalctl -u cmk-agent-ctl-daemon. If you haven’t done yet please register the agent controller as well. 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. Or if you have a specific role for a admin user, go to: Roles & permissions and see this permissions. 1. apt remove --purge check-mk-agent dpkg -i check-mk-agent_2. The registration is done using the Agent Controller cmk-agent-ctl, which provides a command interface for configuring the connections. Become root. gerhards. OS version: Ubuntu Server 22. And now. /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. 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. 168. exe” register --site yousitename --server yourcmkserver --user automation --hostname windows_box_hostname --password1. to checkmk. ColinP November 12, 2022, 12:44pm 1. You can learn how to use the agent here. com:8000/cmk. Register. 0 2. p3 OS version: CentOS 8. (We used cmk-agent-ctl proxy-register → deploy json to host → cmk-agent-ctl import . local -i home -U cmkadmin ERROR [cmk_agent_ctl] Failed to discover agent receiver port from Checkmk REST API, both. 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. „TLS is not activated on monitored host (see details)“. TLD -i SITE-NAME -U USERNAME This worked perfectly fine in CMK 2. 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 port. You can display command help with cmk-agent-ctl help, also for specific available subcommands, with cmk-agent-ctl help register for example. Here is what I have done roughly: Added and configured the agent rules. cmk-agent-ctl register -v -H HOSTNAME -P 'PASSWORD' -s SUBDOMAIN. 1. To be more precise:. The folder /var/lib/cmk-agent was missing on my SUSE Linux Enterprise Micro 5. sh script. This worked perfectly fine in CMK 2. ╰─$ sudo cmk-agent-ctl status Version: 2. 2. 0. mschlenker (Mattias Schlenker) July 8, 2022, 8:12am 4. This port can be found out via omd config > Basics > AGENT_RECEIVER_PORT Of course, this port has to be exposed for the. I created the folder manually and changed ownership, and now the registration. Back on server, Add server under hosts. Upon first try, “cmk-agent-ctl register. c:2633). CMK version: 2. Hi everyone, below is the output of the “cmk-agent-ctl. 0b4_0 raw OS: Ubuntu 20. deb Now the cmk-agent-ctl-daemon. 04 Command used for registration: cmk-agent-ctl. mschlenker (Mattias Schlenker) July 8, 2022, 8:12am 4. 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. I am trying to register an agent installed on a Windows Server 2019. 1. gerhards. Hello. 6 I have an external cloud host that I would like to monitor with in-house CMK server. Sie können zwei Checkmk-Appliances. apt remove --purge check-mk-agent dpkg -i check-mk-agent_2. It has to match the actual hostname used by the Checkmk server, found under “Setup” > “Hosts”. 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. 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. In your case doing proxy. 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. cmk-agent-ctl register -v -H HOSTNAME -P 'PASSWORD' -s SUBDOMAIN. domain. 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”). gawainsr2 August 15, 2022, 5:52pm 1. For Debian remove the cmk-agent and purge the configuration, than reinstall the agent, this purges the xinetd configuration. 1. 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. . Bei der Registrierung wurde in den Anleitungen von chekmk mit dem “automation” User gearbeitet, ich habe es mit dem cmkadmin gemacht was bei den. latest (2. example. service Ikkarus13 (Sascha Kunimünch) May 25, 2022, 1:18pm. Now you need to register the agnet for TLS handshake. Home ; Categories ;Registration indeed is good. Alle Hosts angelegt mit Hostname und IP Adresse. Warning: This version breaks the agent receiver on IPv4-only Checkmk servers which have completely disabled IPv6 support on kernel level. 1. jlagendijk (Jesse) June 2, 2022, 10:04am 1. Address: 401 Hartwig Court, 1208 Wharf Street, Victoria, BC, V8W 2P5, CanadaCTP Distributors. The cmk-agent user is created during the installation of the agent. 4. 1 the monitoring data sent from the monitored host to the monitoring server is TLS encrypted and compressed by default. B. DOMAIN. The cmk-agent user is created during the installation of the agent. cmk-agent-ctl register --hostname localhost --server server:8000 --site mysite --user cmkadmin -vv. 02. net -i STAR -P 'XXXXX' -U automation -H sys-vbr02It seams you use a Debian system. 0p17. consorzioburana. [[email protected] It seems that the host you are trying to register is already registered at the Checkmk site. 57. Distribute below files from new baked agent to all agents that were baked with expired certificate. B. This might be a bug. Thanks for your responses! @cyr0nk0r I rebaked the Agent using HTTP only and got rid of the. The registration is done using the Agent Controller cmk-agent-ctl, which provides a command interface for configuring the connections. 1. You can confirm this by telnetting from your OMD site to the monitored server on tcp port 6556:Checkmk Enterprise Edition 2. exe register --hostname HOST --server SERVER: 8001 --site SITE --user USER. 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. Segmentation fault (core dumped) The same result also with the all needed parameters for the registration. 0 Agent socket: inoperational (!!)The agent control use the port 8000 for communication. The controller is executed under the cmk-agent user, which has limited privileges, e. The folder /var/lib/cmk-agent was missing on my SUSE Linux Enterprise Micro 5. C:Program Files (x86)checkmkservice>cmk-agent-ctl. Der Agent Controller cmk-agent-ctl kümmert sich um den Transport der vom Agentenskript gesammelten Daten. But if cmk-agent-ctl cannot be started, access fails. I had to purge the client, reinstall and reboot the host to get the client to listen on port 6556. 0p9. Reloading xinetd Activating systemd unit. 04. 1. 5. worked fine for me. You can display command help with cmk-agent-ctl help, also for specific available subcommands, with cmk-agent-ctl help register for example. Checkmk Raw Edition 2. If it is xinetd remove the. Now the cmk-agent-ctl-daemon. mschlenker (Mattias Schlenker) July 8, 2022, 8:12am 4. mschlenker (Mattias Schlenker) May 30, 2022, 6:11pm 4. New replies are no longer allowed. 0p14 Agent socket: operational IP allowlist: 10. The Agent Receiver tells the Agent Controller. After a reboot the cmk-agent-ctl-daemon and the check-mk-agent. The agent-receiver of the first checkmk instance usually listens on port 8000, this is the port you need the agent to register against. 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. For more information try --help Command for registration. 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. 2. 6. 489987 +01:00] INFO [cmk_agent_ctl] srclib. 0p10 Agent socket: operational IP allowlist: any Connection: localhost:8001/cmk UUID: 186f71b9-8d6f-41c6-be44-bb1f7c23ae7b Local: Connection. 45. 0p23 of Checkmk is ready for download. 3. 75:8000 --site robot --user cmkadmin --password password -vv. Are you trying to register the 2. The hosts agent supports TLS, but it is not being used. This might be a bug. I get this with no port, or port 800 and 8001. I created the folder manually and changed ownership, and now the registration. If the host is monitored by multiple sites, you must register to. This worked perfectly fine in CMK 2. Agent pairing; Read access to all hosts and folders Since Checkmk version 2. 10. 1 Like. ). Glaube das forum war gerade weg aber um deine Fragen zu beantworten: “C:Program Files (x86)checkmkservicecmk-agent-ctl. If the host is monitored by multiple sites, you must register to all of them. 0p15. This can be problematic if you are monitoring the same host from a site running Checkmk version 2. 2. The cmk-agent user is created during the installation of the agent. Ok, so the user I’m using to do the agent registration. The registration is done using the Agent Controller cmk-agent-ctl, which provides a command interface for configuring the connections. 0p25. With that flag added the machine registers just fine. Now you need to register the agnet for TLS handshake. domain. Could you please check who is claiming port 6556?. XXX. If it is xinetd remove the. Just like it’s the case for the /etc/cmk-update-agent. 1 i’m trying to automate the process of registering our updated windows hosts to thee monitoring for tls encryption. 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. Yes I did use the” cmk-agent-ctl register command, after that I got this message. The cmk-agent user is created during the installation of the agent. But nothing worked. secret with the password as String. Sehr beliebt ist z. 0. Version: 2. 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. 5. Please provide me with the output of: systemctl status check-mk-agent. 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 gave 404 Not Found: Host 127. Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins) sudo: cmk: command not found. 0p11 on Debian 11. 4:8000 --site cmk --user cmkadmin --password password. The registration then aborts, since we cannot continue without knowing the correct port. exe' register -s checkmk. Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins) sudo: cmk: command not found. - it goes from CRIT → OK after a while or sometimes message comes with with service. 0p24 to 2. 1. I am not able to debug the cmk-agent-ctl since it is in. gerhards. However, there is a difference between console output of “cmk-agent-ctl status” and “cmk_agent_ctl_status” from agent output (downloaded via “Download. The cmk-agent user is created during the installation of the agent. Das zu bestätigende Server-Zertifikat haben wir aus Gründen der. Sie können sich mit. Er wird unter dem Benutzer cmk-agent ausgeführt, der nur beschränkte Rechte besitzt, z. 1. 0p13. example. 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. 1 sec. I had to add the checkmk user. 1 Like. ourcompany. 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. 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)\checkmk\service\cmk-agent-ctl. I am also running Puppet so automation is a thing. 0. 1. 0b4-1 OS: Ubuntu 20. cfg file, the registration information of the agent controller stays behind on uninstallation. exe' register -s checkmk. checkmk-v2-1. 0p10 Agent socket: operational IP allowlist: any Connection: localhost:8001/cmk UUID: 186f71b9-8d6f-41c6-be44-bb1f7c23ae7b Local: Connection. In the following Monitoring agents box, you specify two important options for the auto-registration. The cmk-agent user was sucessfully created. On Linux systems, the agent controller will be. xyz:9800 --site cmk --user BAR --password FOO. Please provide me with the output of: systemctl status check-mk-agent. 1. cmk-update-agent register -v -H COMPUTERNAME -U register -S xxxxxxxxxxxxxxxxx. 1 using the Agent Controller. We strongly recommend to enable TLS by registering the host to the site (using the cmk-agent-ctl register command on the monitored host). 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. 1 does not exist. 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). scheint mir noch nicht ganz ausgereift. Checkmk Appliance Cluster. Specify the correct port when calling the registration command. I created the folder manually and changed ownership, and now the registration. 0) master 1. If you use the bakery, the agent was baked with enabled cmk-agent-ctl. 1. Jun 17 10:57:15 nc systemd[1]: cmk-agent-ctl-daemon. 1. Now the cmk-agent-ctl-daemon. 0-1_all. 0p20 Ubuntu 20. 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. 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. I’m running 2. The agent control use the port 8000 for communication. CMK 2. ” failed with this error: "Request failed with code 500 Internal Server Error: Internal Server Error"Danach erfolgte die Registrierung und der Update Befehl. no login shell, and is used only for data transfer. exe to register the Agent Controller. 1.