0. Upon first try, “cmk-agent-ctl register. If you haven’t done yet please register the agent controller as well. As suggested in another post i read i checked:-that port 8000 is open-omd config show | grep AGENT_RECEIVER show port 8000Description: Proxmox VE. 0p10 Agent socket: operational IP allowlist: any Connection: localhost:8001/cmk UUID: 186f71b9-8d6f-41c6-be44-bb1f7c23ae7b Local: Connection. 2 system. 6. serviceSo 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. 0-1_all. 488899 +01:00] INFO [cmk_agent_ctl] srcmain. 1. 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. 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. Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins) sudo: cmk: command not found. 1. Registration indeed is good. domain. Finally, in Bake agent packages, activate. (We used cmk-agent-ctl proxy-register → deploy json to host → cmk-agent-ctl import . 4. I am trying to register an agent installed on a Windows Server 2019. To register a host, users need the following permissions: Agent pairing. mschlenker (Mattias. After that I got the error: Version: 2. DOH I forgot I had set a custom port for agent receiver as i had a conflict for 8000 on my docker host. Thx karnicmk-agent-ctl register -v -H HOSTNAME -P 'PASSWORD' -s SUBDOMAIN. 75:8000 --site robot --user cmkadmin --password password -vv. 1. Join thousands of sysadmins and receive free professional tips and tricks to help you monitor your IT-infrastructure. The exact command line is this: cmk-agent-ctl register -v -H HOSTNAME -P 'PASSWORD' -s SUBDOMAIN. 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. exe' register -s checkmk. DOMAIN. The additional port 8000 seems necessary for creating TLS connection. gerhards. rs:29: No connection could be made because the target. Register. CMK version: 2. 2. If you want to use the agent in legacy mode, you need to disable cmk-agent-ctl in bakery rules. 4. 1. 0p9. 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. 0-1_all. 1. 1:8655 --site cmk --user cmk_admin. And now. pem. service; After that you can register your hosts as usual. 4:8000 --site cmk --user cmkadmin --password password. This one is listening at port 8000. Yes I did use the” cmk-agent-ctl register command, after that I got this message. 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. You have three options here: Make the REST API call work. 5. exe register --hostname HOST --server SERVER: 8001 --site SITE --user USER. Registration indeed is good. Open the terminal that you want to monitor on your. 1. no login shell, and is used only for data transfer. If I try to register it with the command: cmk-agent-ctl register --detect-proxy --hostname FOO --server bla. 14 --site burana_modena --user automation --password XXXXXXX Registration. From its very beginning, monitoring Windows servers has been one of the most important tasks performed by Checkmk. service: Scheduled restart job, restart counter is at 2. 04. I’m running 2. In your case. So, get this from “omd config show” on your CMK. Welcome to Checkmk. 02. 57. Das zu bestätigende Server-Zertifikat haben wir aus Gründen der. Please execute with sufficient permissions (maybe try 'sudo'). 2. If there are leftovers from 2. I am experiencing a problem with registering the agent: CMK version: 2. From here click Create new host. Distribute below files from new baked agent to all agents that were baked with expired certificate. Die Seite habe ich auch schon gefunden aber wie gesagt so richtig verstanden bzw. 0p24 to 2. com. Please provide me with the output of: systemctl status check-mk-agent. 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. This morning all Windows Agents were suddenly no longer registered. service systemctl disable check-mk-agent. 1. The Linux agent of Checkmk version 2. cmk-agent-ctl register --server cmkserver:443 --trust-cert --site cmksite --user username --password password --hostname monitoringhost Then take a look it /etc/xinet. I get this with no port, or port 800 and 8001. 1 does not exist. 1. local -i home -U cmkadmin ERROR [cmk_agent_ctl] Failed to discover agent receiver port from Checkmk REST API, both. Could you please check who is claiming port 6556?. socket → /lib/systemd/system/check-mk-agent. B. Going from one patch level to another one (like from p16 to p20) basically is: dpkg -i checkmk…new. For this, I’m running following command on client # cmk-agent-ctl register --hostname `hostname -f` --server mon. 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. ColinP November 12, 2022, 12:44pm 1. 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. 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. omd update. cmk-agent-ctl register --hostname localhost --server server:8000 --site mysite --user cmkadmin -vv. DOMAIN. OS version: Ubuntu Server. Upon first try, “cmk-agent-ctl register. After the installation everything worked. 10. I am not able to debug the cmk-agent-ctl since it is in. But if cmk-agent-ctl cannot be started, access fails. Ausgabe ist: Local: Hier scheint alles ok zu seine, nur taucht der Host im. service cmk-agent-ctl-daemon. 0. From its very beginning, monitoring Windows servers has been one of the most important tasks performed by Checkmk. evilguy January 8, 2023, 7:53pm 3. d, only the check-mk-agent can be found: [root@jumphost]# cmk-agent-ctl register --hostname myclient . exe” ^. This morning all Windows Agents were suddenly no longer registered. Now you need to register the agnet for TLS handshake. Dazu verwendet Checkmk teils eigene, teils bereits existierende Plugins. service should work as expected. latest (2. You have three options here: Make the REST API call work. 0. Wie hier beschrieben, sollten alle Bedingungen für eine TLS encryption erfüllt sein. to switch your agent into SSL mode (and not. So, Checkmk is ready. 0p17. 0, that will not be possible. 1. 2. 1. The folder /var/lib/cmk-agent was missing on my SUSE Linux Enterprise Micro 5. exe" ^ register ^ --hostname mynewhost ^ -. Warning: This version breaks the agent receiver on IPv4-only Checkmk servers which have completely disabled IPv6 support on kernel level. 1 agent. Registration indeed is good. exe” register --site yousitename --server yourcmkserver --user automation --hostname windows_box_hostname --password 1. agent_pairing") to their role. OS: linux. 3. 1 Like. com:443 -i cmk --user automation . 0. I had to add the checkmk user again. no login shell, and is used only for data transfer. Bei einem Netzwerkdienst liegt es nahe, den Dienst über das Netzwerk abzufragen und über diesen Weg auch zu überwachen. Hello. deb. Jun 17 10:57:15 nc systemd[1]: cmk-agent-ctl-daemon. Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins) sudo: cmk: command not found. monitoring. Version: 2. After the installation everything worked. The agent controller is well deployed and configured : “C:Program Files (x86)checkmkservicecmk-agent-ctl. 0. But if cmk-agent-ctl cannot be started, access fails. I installed the CheckMK Agent on a TrueNAS SCALE host. NOTE: A registered host will refuse all unencrypted connections. 1. 0p22 agent by running cmk-agent-ctl on the 2. You can learn how to use the agent here. exe” register. to checkmk. apt remove --purge check-mk-agent dpkg -i check-mk-agent_2. cmk-agent-ctl register -v -H HOSTNAME -P 'PASSWORD' -s SUBDOMAIN. checkmk-v2-1. com. Now you need to register the agnet for TLS handshake. I am experiencing a problem with registering the agent: CMK version: 2. cmk-agent-ctl register -H ovhxxx -s publicIP:8194 -i cmk -U automation. This component is separate from the Agent Updater. 1. 5. sh script. Redirecting to /bin/systemctl reload xinetd. One of my hosts is producing this error, while most others register fine: root@sshgateway:~# cmk-agent-ctl register --hostname gateway. socket (failed failed) so I stopped and disabled them, then did systemctl daemon-reload and systemctl. 1. I dont know why this folder could not be created during cmk agent installation from the cmk-agent-useradd. 2 system. Could you please check who is claiming port 6556?. apt remove --purge check-mk-agent dpkg -i check-mk-agent_2. ss -tulpn | grep 6556 This should be cmk-agent-ctl in daemon mode. 1 Like. DOMAIN. Anders (Anders) November 27, 2022, 4:25pm 1 CMK version: 2. Inside the container: root@9529f647cd27:/# omd version OMD - Open Monitoring Distribution Version 2. ╰─$ sudo cmk-agent-ctl status Version: 2. cre root@9529f647cd27:/# omd sites SITE VERSION COMMENTS cmk 2. windows. If it is xinetd remove the. Hello David, unfortunately --trust-cert changes nothing. g. socket failed. The controller is executed under the cmk-agent user, which has limited privileges, e. 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. If it is xinetd remove the Xinetd config file for the Checkmk agent and just reinstall the agent package. py script to the host to be monitored (both can be found at ~/share/check_mk/agents/plugins on the Checkmk server). 1. New replies are no longer allowed. mschlenker (Mattias Schlenker) July 8, 2022, 8:12am 4. If you forward port 9800 to 8000 then you also have to use port 9800 in your register command. With telnet i can connect to the agent from the OMD server. 1 and the site to 2. I feel like I’m missing something real obvious. If the host is monitored by multiple sites, you must register to. consorzioburana. scheint mir noch nicht ganz ausgereift. Agent Victoria, British Columbia 1970's Members Murray Acton ~ Guitar, Vocals Steve Andreas ~ Bass, Vocals Peter Bryant ~ Drums, Vocals Wayne Darling ~. 1. 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. 0. Segmentation fault (core dumped) The same result also with the all needed parameters for the registration. 0p6. 0p15. 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. rs:41: Loaded config from. 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. rs:14: starting [2023-02-10 12:54:18. 0-1_all. Agent Controller is not running, no config files can be found in the systemd directory and within xinetd. Anschließend installieren Sie den Agenten mit allen Konfigurationsdetails für den zu überwachenden Host durch einen abschließenden Aufruf des Agent-Updater-Plugins. exe" register --hostname s3mo-tape. The agent is running and I get all of the. 1. 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. 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. service should work as expected. cmk-update-agent –v. 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. 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. Address: 401 Hartwig Court, 1208 Wharf Street, Victoria, BC, V8W 2P5, CanadaCTP Distributors. 4. DOMAIN. 02. 0 adds the Agent Controller and new features to the agent script. 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. 1. focal_amd64. 0p6. After the installation everything worked. consorzioburana. folgenden Register Befehl benutzt. You can display command help with cmk-agent-ctl help, also for specific available subcommands, with cmk-agent-ctl help register for example. Copy the cmk-update-agent binary or the cmk_update_agent. Wenn ich aber beim Registrieren den richtigen Port mitgebe, dann gehts…. This might be a bug. Bei der Registrierung der Agents ergibt sich bei beiden Server folgender Fehler: <HOST>:~ # cmk-agent-ctl register --hostname <HOSTNAME> --server 192. 0 did not yet use TLS, so port 8000 didn’t need to be exposed back then. exe' register -s checkmk. Any hints? aeckstein (Andre Eckstein) October 25, 2022, 4:36pm 4. For a user to be able to do the cmk-agent-ctl register, which is needed to enable the TLS encryption (available from 2. This is the command we used to register the agent: C:Windowssystem32> "C:Program Files (x86)checkmkservicecmk-agent-ctl. I installed the CheckMK Agent on a TrueNAS SCALE host. 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. The agent control use the port 8000 for communication. Checkmk. Here is the deep link to the section in the manual:. deb Now the cmk-agent-ctl-daemon. In your case doing proxy. /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. 0p10 Agent socket: operational IP allowlist: any Connection: localhost:8001/cmk UUID: 186f71b9-8d6f-41c6-be44-bb1f7c23ae7b Local: Connection. 0 or earlier. Upon first try, “cmk-agent-ctl register. Server certificate details: [2022-06-01. Agent Registration (Pairing) for TLS Encryption. Yes, it might seem weird. CMK version: 2. CMK 2. 1. 0. service: Scheduled restart job, restart counter is at 2. 0 did not yet use TLS, so port 8000 didn’t need to be exposed back then. 1. Back on server, Add server under hosts. no login shell, and is used only for data transfer. socket Then restart your xinetd (or just reboot). 489987 +01:00] INFO [cmk_agent_ctl] srclib. service: Scheduled restart job, restart counter is at 2. Jun 17 10:57:15 nc systemd[1]: cmk-agent-ctl-daemon. Use the cmk-agent-ctl register command to register. I am trying to register an agent installed on a Windows Server 2019. g. 0 adds the Agent Controller and new features to the agent program. When I try to register the client to the server (which is inside of docker) I try the following line: (I only have IP addresses and firewall is open) cmk-agent-ctl register --hostname ip_of_client --server 1. " Jun 17 10:57:15 nc systemd[1]: cmk-agent-ctl-daemon. g. Sehr beliebt ist z. 0-1_all. NOTE: A registered host will refuse all unencrypted connections. I am also running Puppet so automation is a thing. Hello. sh script. Der Benutzer cmk-agent wird während der Installation des Agentenpakets. But if cmk-agent-ctl cannot be started, access fails. 6. 0p10 Agent socket: operational IP allowlist: any Connection: localhost:8001/cmk UUID: 186f71b9-8d6f-41c6-be44-bb1f7c23ae7b Local: Connection. 0. deb The monitored system is in a local network and have. Please provide me with the output of: systemctl status check-mk-agent. copy the cmk-agent-ctl for the architecture you are using to e. This can be problematic if you are monitoring the same host from a site running Checkmk version 2. DEBUG [cmk_agent_ctl::modes::pull] handle_request starts DEBUG [rustls::server::hs] decided upon suite TLS13_AES_256_GCM_SHA384 WARN [rustls::conn] Sending fatal alert HandshakeFailure DEBUG [cmk_agent_ctl::modes::renew_certificate] Checking registered connections for certificate expiry. 1 gave 404 Not Found: Host 127. 0. 0 Agent socket: inoperational (!!)The agent control use the port 8000 for communication. check_für das Abfragen von Webseiten. Hi everyone, below is the output of the “cmk-agent-ctl. The Agent Receiver tells the Agent Controller. 488899 +01:00] INFO [cmk_agent_ctl] srcmain. . Dann hast du die Herangehensweise schon gefunden, wenn man die Zertifikate noch nicht im Griff hat. If you use the bakery, the agent was baked with enabled cmk-agent-ctl. 0p10 Agent socket: operational IP allowlist: any Connection: localhost:8001/cmk UUID: 186f71b9-8d6f-41c6-be44-bb1f7c23ae7b Local: Connection. 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. 0. service: Start request repeated too quickly. agent_pairing”) to his/her role. Become root. If the host is monitored by multiple sites, you must register to all of them. We will be asked for some information about the host. 0/26. OS version: Rocky Linux release 9. This query is attempted both with and both queries fail, the controller aborts, otherwise, the result of the first sucessful query is. „TLS is not activated on monitored host (see details)“. 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. OS is Ubuntu 22. exe register --trust-cert -vv” command: [2023-02-10 12:54:18. root@kerneltalks # service xinetd reload. 7 I have problem since the connection to the cmk server has to be ssl encrypted. If it is the second option you should review roles & permissions. ERROR [cmk_agent_ctl] Failed to run as user 'cmk-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. Created symlink /etc/systemd/system/sockets. 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 2. 0p16-1. 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. 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. WARNING: The Agent Controller is operating in an insecure mode! To secure the connection run cmk-agent-ctl register. 234. CMK version: 2. sh script. com--site FOO --user BAR --password FOO The new agents at 2. XXX. 0p10 Agent socket: operational IP allowlist: any Connection: localhost:8001/cmk UUID: 186f71b9-8d6f-41c6-be44-bb1f7c23ae7b Local: Connection. Only after I manually ran “cmk-agent-ctl register” it listened again. When you have done all this, install the agent again and it will work properly. From its very beginning, monitoring Windows servers has been one of the most important tasks performed by Checkmk. With Checkmk agent connection mode you decide whether the Checkmk agent should work in pull mode or (as in the following image) in push mode. CMK 2. socket systemctl status cmk-agent-ctl-daemon. exe register --trust-cert -vv” command: [2023-02-10 12:54:18. The controller is executed under the cmk-agent user, which has limited privileges, e. This is realized by a new component on the monitored hosts: The Checkmk agent controller cmk-agent-ctl. 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. Wie soll ich nun aber auf Hunderten von Host TLS aktivieren?Hi, I have an issue with the registration of some agents on a site : when I run the cmk-agent-ctl register the process crashed on server-side after 10/15 seconds. First, to add a new host to monitor we have to go to the Hosts menu in the WATO - Configuration menu on the left. Jun 17 10:57:15 nc systemd[1]: Stopped Checkmk agent controller daemon. 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. Ich registriere den Agent : sudo cmk-agent-ctl register --hostname hlcmk --server 10. net -i STAR -P 'XXXXX' -U automation -H sys-vbr02Yes I did use the” cmk-agent-ctl register command, after that I got this message. service. „TLS is not activated on monitored host (see details)“. 2 release. I am trying to register an agent installed on a Windows Server 2019. via journalctl -u cmk-agent-ctl-daemon. jlagendijk (Jesse) June 2, 2022, 10:04am 1. 2 system. 0b4_0 raw OS: Ubuntu 20. socket failed. 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. You can confirm this by telnetting from your OMD site to the monitored server on tcp port 6556:Checkmk Enterprise Edition 2. I dont know why this folder could not be created during cmk agent installation from the cmk-agent-useradd. You can display command help with cmk-agent-ctl help, also for specific available subcommands, with cmk-agent-ctl help register for example. 6. This can be problematic if you are monitoring the same host from a site running Checkmk version 2. example. If it is systemd please give us the output of systemctl --version. Version: 2. 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. Could you please check who is claiming port 6556? ss -tulpn | grep 6556 This should be cmk-agent-ctl in daemon mode. The cmk-agent user is created during the installation of the agent. 1. You can learn how to use the agent here. 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.