This can be problematic if you are monitoring the same host from a site running Checkmk version 2. Yes I did use the” cmk-agent-ctl register command, after that I got this message. Sie können sich mit. This port can be found out via omd config > Basics > AGENT_RECEIVER_PORT Of course, this port has to be exposed for the registration to. Upon first try, “cmk-agent-ctl register. The folder /var/lib/cmk-agent was missing on my SUSE Linux Enterprise Micro 5. So, get this from “omd config show” on your CMK. 1. deb Now the cmk-agent-ctl-daemon. From its very beginning, monitoring Windows servers has been one of the most important tasks performed by Checkmk. exe” register. serviceCan you use the option trust-cert ? Also, what is the systemd version on your system ?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. 489987 +01:00] INFO [cmk_agent_ctl] srclib. The controller is executed under the cmk-agent user, which has limited privileges, e. DOMAIN. 1. user -vv INFO [cmk_agent_ctl] starting. New install of CMK (via RPM) - trying to just register the localhost agent. service You can display command help with cmk-agent-ctl help, also for specific available subcommands, with cmk-agent-ctl help register for example. 04. The cmk-agent user was sucessfully created. Hi everyone, below is the output of the “cmk-agent-ctl. Jun 17 10:57:15 nc systemd[1]: cmk-agent-ctl-daemon. Hello. In your case doing proxy. 6 I have an external cloud host that I would like to monitor with in-house CMK server. 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. 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. exe register --hostname HOST --server SERVER: 8001 --site SITE --user USER. Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins) sudo: cmk: command not found. mydomain. 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. In your case doing proxy. XXX. Wie Sie den Agenten nutzen, erfahren Sie hier. 0p13. 0b4-1_all. This is realized by a new component on the monitored hosts: The Checkmk agent controller cmk-agent-ctl. Please provide me with the output of:. Bei der Registrierung der Agents ergibt sich bei beiden Server folgender Fehler: <HOST>:~ # cmk-agent-ctl register --hostname <HOSTNAME> --server 192. 0 or earlier. 1. Here it makes sense to pass the required registration information directly via the command. 0 or earlier. I am trying to register an agent installed on a Windows Server 2019. andreas-doehler (Andreas) January 8, 2023, 3:48pm 2. state. 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. The agent controller is well deployed and configured : “C:Program Files (x86)checkmkservicecmk-agent-ctl. com:8000 --site itbetrieb --user automation --password xxxxxxxx --trust-cert -vv Version: 2. The Agent Controller cmk-agent-ctl is the component within the agent that is responsible for transporting the data collected by the agent script. 0. Specify the correct port when calling the registration command. 0 did not yet use TLS, so port 8000 didn’t need to be exposed back then. I dont know why this folder could not be created during cmk agent installation from the cmk-agent-useradd. server --site Main --user cmkadmin --verbose erscheint folgendes: image 1902×257 114 KB. 2. deb Now the cmk-agent-ctl-daemon. 1. rs:14: st… As mentioned in another thread, you actually ran into a newly implemented CSR version check that’s. gawainsr2 August 15, 2022, 5:52pm 1. OS version: Ubuntu Server. Either import the self signed certificate on this server paperless-ngx or use the same command with port. B. The cmk-agent user is created during the installation of the agent. 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. 1. cmk-agent-ctl delete-all --enable-insecure-connections; cmk-agent-ctl status; cmk-agent-ctl register --hostname $(hostname -f) --server checkmk21-prod. cme and I’m no longer able to register new hosts with an automation user “cmkautomation” that I created a while ago (with role “agent_registration”). 1. 2. Username: xxxxx@pve. Bei der Registrierung wurde in den Anleitungen von chekmk mit dem “automation” User gearbeitet, ich habe es mit dem cmkadmin gemacht was bei den. Reloading xinetd Activating systemd unit 'check-mk-agent. 0p10 Agent socket: operational IP allowlist: any Connection: localhost:8001/cmk UUID: 186f71b9-8d6f-41c6-be44-bb1f7c23ae7b Local: Connection. The folder /var/lib/cmk-agent was missing on my SUSE Linux Enterprise Micro 5. Password for user ‘cmkadmin’: Successfully registered agent of host “monitor2” for deployment. root@mgmonitor02:~# cmk-agent-ctl register --hostname MGMonitor --server localhost --site sitename --user omd --password omd ERROR [cmk_agent_ctl] Failed to discover agent receiver port from Checkmk REST API, both with and (MD) December 17, 2021, 4:52am 3. 0 2. Installed the agent on a Server (Windows and Ubuntu) Registered the agent with the following command: cmk-agent-ctl register --hostname --server --site --user automation --password. This was not expected as I created rules in “Agent controller” {'agent_ctl_enabled': True}. I dont know why this folder could not be created during cmk agent installation from the cmk-agent-useradd. The controller is executed under the cmk-agent user, which has limited privileges, e. For a user to be able to do the cmk-agent-ctl register, which is needed to enable the TLS encryption (available from 2. This is in preparation for the 2. 6 Likes. 1. to checkmk. 0p6. If you use the bakery, the agent was baked with enabled cmk-agent-ctl. ╰─$ sudo cmk-agent-ctl status Version: 2. exe register --trust-cert -vv” command: [2023-02-10 12:54:18. but here is everything ok. 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. I had to add the checkmk user. deb. I created the folder manually and changed ownership, and now the registration is working! Agent Controller is not running, no config files can be found in the systemd directory and within xinetd. 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. Version: 2. 488899 +01:00] INFO [cmk_agent_ctl] srcmain. I am trying to register an agent installed on a Windows Server 2019. The registration then aborts, since we cannot continue without knowing the correct port. 1 does not exist. ” 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. 1. service; After that you can register your hosts as usual. sh script. But if cmk-agent-ctl cannot be started, access fails. gierse,. ” failed with this error: "Request failed with code 500 Internal Server Error: Internal Server Error" The registration then aborts, since we cannot continue without knowing the correct port. 1. 0:8282 --site cmk --user automation --password. Here is a fix that worked for me, in case anyone else runs into this. 0. 1 i’m trying to automate the process of registering our updated windows hosts to thee monitoring for tls encryption. com:443 -i cmk --user automation . 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. In checkmk for the host service got below warning. 0 (Blue Onyx) [root@CHECKMK services]# cmk-agent-ctl. 488899 +01:00] INFO [cmk_agent_ctl] srcmain. Deutsch. com --site FOO --user BAR --password FOO. 1 sec. 2. Fixed that with create a new User “automation” and created the file automation. TLD -i SITE-NAME -U USERNAME. XXX. 2 system. 2. service: Scheduled restart job, restart counter is at 2. All commands to be executed on the host to be monitored. 5. For Debian remove the cmk-agent and purge the configuration, than reinstall the agent, this purges the xinetd configuration. Please provide me with the output of: systemctl status check-mk-agent. no login shell, and is used only for data transfer. You can learn how to use the agent here. cmk-update-agent –v. Hi everyone, below is the output of the “cmk-agent-ctl. The user used for registering has admin privileges at checkmk and is able to see the global setting at the webui. 1 Like. DOMAIN. 1. 0, that will not be possible. Danach erfolgte die Registrierung und der Update Befehl. service should work as expected. 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. Hello. 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. exe . TLD -i SITE-NAME -U USERNAME. Monthly Promotions Product Specials and Monthly Flyers Emailed Right to You! Online Ordering Check Price and. And now. 1. 0p6. Das wurde erst mit b3 geändert, gilt aber nur für die erste Installation. Hello. Tested turning off firewall on 2019. root@kerneltalks # service xinetd reload. XXX. mschlenker (Mattias Schlenker) May 30, 2022, 6:11pm 4. Sie können sich mit cmk-agent-ctl help die Kommandohilfe anzeigen lassen, auch spezifisch für die verfügbaren Subkommandos, z. CMK agent is up and running, host is added to Check MK server and now I want to set up TLS connection. rs:41: Loaded config from. I confused the keyword register on cmk-agent-ctl register with cmk-update-agent register or perhaps on some subconscious level assumed the first would handle both. domain. Haven’t done anything else with the install yet. sh script. 1 Like. 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. WARNING: The Agent Controller is operating in an insecure mode! To secure the connection run cmk-agent-ctl register. But if cmk-agent-ctl cannot be started, access fails. For Debian remove the cmk-agent and purge the configuration, than reinstall the agent, this purges the xinetd configuration. If I try to register it with the command: cmk-agent-ctl register --detect-proxy --hostname FOO --server bla. 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. If it is xinetd remove the. to checkmk. In checkmk for the host service got below warning. " Jun 17 10:57:15 nc systemd[1]: cmk-agent-ctl-daemon. From here click Create new host. de--site meine_site --user user --password password --hostname mein-host. –server checkmk. exe” ^. evilguy January 8, 2023, 7:53pm 3. 2 Delete all directories/files of the agent controller from the host. For this, I’m running following command on client # cmk-agent-ctl register --hostname `hostname -f` --server mon. 0. 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. d/ there might be a residual configuration file called checkmk or similar. 1. Going from one patch level to another one (like from p16 to p20) basically is: dpkg -i checkmk…new. 0p17. 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. 5 LTS monitored system (Host) Package: check-mk-agent_2. Created symlink /etc/systemd/system/sockets. 4. 0p6. 3. 0p10 OS: linux The hosts agent supports TLS, but it is not being used. The Agent Receiver tells the Agent Controller. DOMAIN. The exact command line is this: cmk-agent-ctl register -v -H HOSTNAME -P 'PASSWORD' -s SUBDOMAIN. You can display command help with cmk-agent-ctl help, also for specific available subcommands, with cmk-agent-ctl help register for example. Yes I did use the” cmk-agent-ctl register command, after that I got this message. socket'. cmk-agent-ctl register -v -H HOSTNAME -P 'PASSWORD' -s SUBDOMAIN. 0. 0 Agent socket: inoperational (!!)The agent control use the port 8000 for communication. mschlenker (Mattias Schlenker) May 30, 2022, 6:11pm 4. If you want to use the agent in legacy mode, you need to disable cmk-agent-ctl in bakery rules. In your case doing proxy. Register. to checkmk. 1. 0p15. 1 agent. I’ve installed the agent and succesfully register on OS windows 7x64 and. 0-1_all. domain. no login shell, and is used only for data transfer. exe register --hostname SRV001 --server <CHECK_MK_IP> --site mysite --user automation --password <PASSWORD>check_mk agent runs on top of xinetd service in Linux. 7 I have problem since the connection to the cmk server has to be ssl encrypted. It has to match the actual hostname used by the Checkmk server, found under “Setup” > “Hosts”. This might be a bug. slice (loaded active) and check_mk. , I had to put the public hostname). exe" register --hostname s3mo-tape. checkmk-v2-1. socket systemctl status cmk-agent-ctl-daemon. Bei einem Netzwerkdienst liegt es nahe, den Dienst über das Netzwerk abzufragen und über diesen Weg auch zu überwachen. Something like this. 0) master 1. 10. You have to use cmk-agent-ctl. service. Redirecting to /bin/systemctl reload xinetd. [[email protected] It seems that the host you are trying to register is already registered at the Checkmk site. Hi everyone, below is the output of the “cmk-agent-ctl. I created the folder manually and changed ownership, and now the registration. exit # leave the site user shell. 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. cmk-agent-ctl register -H ovhxxx -s publicIP:8194 -i cmk -U automation. 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”. 1. mit cmk-agent-ctl help register. Er wird unter dem Benutzer cmk-agent ausgeführt, der nur beschränkte Rechte besitzt, z. exe register --trust-cert -vv” command: [2023-02-10 12:54:18. 0 adds the Agent Controller and new features to the agent program. Please provide me with the output of: systemctl status check-mk-agent. However, there is a difference between console output of “cmk-agent-ctl status” and “cmk_agent_ctl_status” from agent output (downloaded via “Download. It’s hard to tell where exactly it comes from. service - Checkmk agent controller daemonIt seams you use a Debian system. 0 ergänzt das Agentenskript mit dem Agent Controller und neuen Funktionen. CMK 2. So, Checkmk is ready. (We used cmk-agent-ctl proxy-register → deploy json to host → cmk-agent-ctl import . Hello, I have a problem with enabling TLS in CheckMk 2. Here is a fix that worked for me, in case anyone else runs into this. it --server 192. 1 Like. Here you can enter a host’s name simply in order to view the host’s configuration (e. Die Registrierung klappt einfach nicht (die Hosts sind aber auch schon aus der 2. apt remove --purge check-mk-agent dpkg -i check-mk-agent_2. 5. 1. 14 --site burana_modena --user automation --password XXXXXXX Registration. After the installation everything worked. Distribute below files from new baked agent to all agents that were baked with expired certificate. The additional port 8000 seems necessary for creating TLS connection. If it is xinetd remove the. service: Start request repeated too quickly. This morning all Windows Agents were suddenly no longer registered. net -i STAR -P 'XXXXX' -U automation -H sys-vbr02The folder /var/lib/cmk-agent was missing on my SUSE Linux Enterprise Micro 5. 0p15 OS version: TrueNAS SCALE 22. 1. 1. You can confirm this by telnetting from your OMD site to the monitored server on tcp port 6556:Checkmk Enterprise Edition 2. This might be a bug. We’ll come back to you to ask for. So if you make any changes to the config file then you need to reload configuration or restart the agent. I am also running Puppet so automation is a thing. This might be a bug. Checkmk Server: Checkmk version: 2. 1 does not exist. The cmk-agent user is created during the installation of the agent. 1. exe' register -s checkmk. exe register --trust-cert --hostname mein. 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. 0p2 RAW Edition. 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. mschlenker (Mattias Schlenker) May 30, 2022, 6:11pm 4. service should work as expected. 1 server? You have to run the cmk-agent-ctl on the machine running the agent, not from the server. We strongly recommend to enable TLS by registering the host to the site (using the `cmk-agent-ctl register` command on the monitored host). Agent Victoria, British Columbia 1970's Members Murray Acton ~ Guitar, Vocals Steve Andreas ~ Bass, Vocals Peter Bryant ~ Drums, Vocals Wayne Darling ~. Copy the cmk-update-agent binary or the cmk_update_agent. 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. exe . 1. root@kerneltalks # service xinetd reload. But nothing worked. The cmk-agent user was sucessfully created. The cmk-agent user was sucessfully created. If the host is monitored by multiple sites, you must register to. 1. Anyhow when registering the usual way as I did it. 0. The folder /var/lib/cmk-agent was missing on my SUSE Linux Enterprise Micro 5. 1. Version: 2. 1. mschlenker (Mattias Schlenker) May 30, 2022, 6:11pm 4. Contact an admin if you think this should be re-opened. Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins) I have registered over 100 hosts successfull but something is wrong with this one when I use that command: & 'C:Program Files (x86)checkmkservicecmk-agent-ctl. cmk-agent-ctl register --hostname 1. 489987 +01:00] INFO [cmk_agent_ctl] srclib. Finally, in Bake agent packages, activate. Basically i installed checkmk site into Docker then i installed the agent into the desired server, but when i run the command: sudo cmk-agent-ctl register -vv --hostname name --server ip:8000 --site cmk --user user --password pass. 2 system. But if cmk-agent-ctl cannot be started, access fails. Now you need to register the agnet for TLS handshake. This can be problematic if you are monitoring the same host from a site running Checkmk version 2. 2. 0p10 Agent socket: operational IP allowlist: any Connection: localhost:8001/cmk UUID: 186f71b9-8d6f-41c6-be44-bb1f7c23ae7b Local: Connection. cmk-agent-ctl register --server cmkserver:443 --trust-cert --site cmksite --user username --password password --hostname monitoringhost On Debian 11 if got the following outputYes I did use the” cmk-agent-ctl register command, after that I got this message. 0p15. Registration indeed is good. 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”). You can display command help with cmk-agent-ctl help, also for specific available subcommands, with cmk-agent-ctl help register for example. 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. redacted. After the installation everything worked. 1. This might be a bug. 1. 1. 1. You’ll also need to do something like cmk-agent-ctl register. 2. 4. , I had to put the public hostname). If I try to register it with the command: cmk-agent-ctl register --detect-proxy --hostname FOO --server bla. This might be a bug. target. 0p11 Agent socket: inoperational (!!) 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. no login shell, and is used only for data transfer. 0-1_all. However if I (faulty) try to register the host to my MAIN site first and THEN register to my slave site it works… The --hostname option of the register command refers to the host to be registered. 488899 +01:00] INFO [cmk_agent_ctl] srcmain. Yes I did use the” cmk-agent-ctl register command, after that I got this message. Upon first try, “cmk-agent-ctl register. For some reason I am no longer able to register my agents with TLS. The folder /var/lib/cmk-agent was missing on my SUSE Linux Enterprise Micro 5. To register a host, users need the following permissions: Agent pairing. When trying to register the checkmk agent: Access is denied:. 02. when i executing the command remotely via powershell i’m. Glaube das forum war gerade weg aber um deine Fragen zu beantworten: “C:Program Files (x86)checkmkservicecmk-agent-ctl. After a reboot the cmk-agent-ctl-daemon and the check-mk-agent. 1:8655 --site cmk --user cmk_admin. 0 2. The new TLS feature is need to register with cmk-agent-ctl register command. 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. 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. Welcome to the Checkmk User Guide. cmk-agent-ctl. socket systemctl status cmk-agent-ctl-daemon. CMK 2. Are the Linux systems affected by cmk-agent-ctl not starting using a IPv4 only setup?. B. Yes I did use the” cmk-agent-ctl register command, after that I got this message. If the host is monitored by multiple sites, you must register to all of them. OS: Windows Server 2019. example. 0/26. cre default. 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. $ sudo systemctl restart cmk-agent-ctl-daemon. 04 LTS. 2 system. 0p17. C:\ProgramData\checkmk\agent\config\cmk-update-agent. 0p16-1.