I randomly get "Zabbix Agent is not available" or "Active checks are not available" alerts across different servers at different times. xx] failed: host [barnard] not found. 3. This way new hosts can be added for monitoring without configuring them manually on the server. Aug 14, 2015 · The problem is in your agent configuration file. log cannot send list of active checks to [127. Active checks. Windows Agent: no active checks on server [PROXY-IP]: host [HOSTNAME] not found We are currently monitoring around 100 windows hosts on Zabbix sever/proxies version 7. geo. config file: Code: Server=xxxxxxxx. and. net] not found. I have already check the hostname in the conf file, I have check if there is conection through 10050 and 10051 ports by telnet, I have check the hostname file to see if it is the same name when executing hostname command, I have changed the Server and ServerActive Oct 23, 2014 · ServerActive field controls active checks, so that needs set if using any active agent items. Autoregistration can happen when a previously unknown active agent asks for checks. (Netbios) hostnames are identical in conf file, in windows No active checks on server: host [barnard] not found. Zabbix 1600px. hostname: zabbix-server. May 18, 2011 · Joined: Oct 2005. I've even tried to add the two of them in a specific vpn, and that didin't help, so connectivity issues are ruled out. 106) on Ubuntu Server 22. Mar 5, 2010 · Let me tell you my setting & Steps, I have been trying to fix this for three days with no luck: Server IP address is 192. 168. Other users suggest possible solutions related to DNS, IP address, hostname and port settings. conf the configuration I edited: ServerActive=172. client. The Proxy is pointed to the Zabbix Aug 27, 2009 · Hello Zabbix fanatics I have a problem checking windows logfiles. 254. So when I add ZBX_HOSTNAME=Zabbix server to environment variables of my zabbix-agent and depends on it to the zabbix-server everything is good. Find the reason why its not working, usually zabbix agent issue or something. May 3, 2024 · Hi! I have a problem with an agent and a zabbix proxy conection. The agent must first retrieve from the server (s) a list of items for independent processing. 420 temporarily disabling Zabbix agent checks on host [netmon]: host unavailable. I have been using Zabbix for quite a while now. If you are not using Active checks you may change agents to the passive mode by setting ProxyMode=1 in agents configuration file. Nov 28, 2023 · At the OS level I have installed the zabbix_get tool and using the same name and port from the zabbix server I can get data zabbix_get -s systemname -p 10050 -k agent. I connected the agent to Zabbiks via PSK. The state of active checks is not reflected in this icon. 11. Oct 11, 2020 · Thanks for this! Hello all, I was able to get passive checks to run but cannot seem to get active checks to work. conf. But for some reason the two clients I want to add now keep giving the same error: cannot send list of active checks to [x. 3. But in zabbix server we are not getting any data's from this client. Pointed both IP/FQDN fields to the same Zabbix IP. No mentions that the agent is connecting to the zabbix server. Parameters: service - possible values: ntp (see details ); ip - the IP address or DNS name (by default the host IP/DNS is used); Sep 29, 2021 · 4. Sending list of active checks to [156. IP. 1 is your agent IP. test. Nov 18, 2020 · i know that you will say the issue in hostname. lds. exe will be installed. Return value: 0 - the service is down; 1 - the service is running. The zabbix_server_log in this case is writing a line each second for each disabled host in the log file: cannot send list of active checks to "IP ADDRESS": host "HOSTNAME" not monitored. 615:20231013:153712. ServerPort=10051. WARNING: TCP connect to (192. 195]: host [lebfra] not found. Mar 28, 2018 · I am using Zabbix Active Agent to monitor hosts over the network but getting "no active checks on server [xx. The problem was my understanding of how to configure the zabbix_agentd. udp. petrillo. in zabbix_agentd. I changed a single item to ZABBIX agent (active) 2. Code: 20081:20130604:113906. 364 cannot send list of active checks to [192. May 30, 2024 · 30-05-2024, 08:17. # # Mandatory: no # Default: # ListenIP=0. Well, communication seems ok, as you see from this message that the agent was requesting a list of ITEMS to download, but the Zabbix server can't find the host object in its database. Do not put multiple IP addresses, and no need to put a port number with it. xx. version 6. 3) is discovered by the server but cannot receive the list of active checks. win. The hosts have been added into the Zabbix Server, exactly matching the hostnames in the agent conf file. 转到“配置”菜单并选择“主机”选项。 3. service [service,<ip>,<port>] Checks if a service is running and responding to UDP requests. in zabbix_server. localhost), i can ping the name from any where it is on DNS, the zabbix server act as server and agent, the following settings: /etc/zabbix/zabbix_server. #2. How often list of active checks is refreshed, in seconds. Mar 5, 2010 · A user asks for help with an error message from Zabbix server and agent on Linux. Both agent and server are install in same machine. Jun 30, 2008 · Active checks not working. Zabbix agent installed on windows server. 411 no active checks on server [127. Hi, I've been troubling myself these days with learning to setup zabbix to monitor Windows 2016 server (s). the Windows Server 2022 firewall has a rule for inbound port 10050. So all host reach correct the proxy. 123]: host [zabbix] not found. 100:10051]: host [MY-WINDOWS-HOST] not found. passive checks are working normally and also I tested traps with senders and everything is working well. Dec 13, 2011 · Also, Server= is set to my Zabbix server IP and I am able to reach it on port 10051 (using telnet) Log file zabbix_agentd. every place I have looked it said the Name field in the server data has to match the Hostname field in the agent config. Please see the configuration file on pc. Probably you thinking about item refresh (Update interval in Zabbix item configuration). Addr. 这个错误提示通常表示Zabbix-Server没有配置该主机的Active Checks。请确保在Zabbix-Server上已经添加了该主机,并且已经启用了Active Checks。您可以通过以下步骤来检查和配置: 1. Hi! I have a problem with an agent and a zabbix proxy conection. " errors only in one host with same exact server/agent configuration as in other hosts. 4-latest. 773 No active checks on server: host [Zabbix server] not found Jun 29, 2024 · once again I have a weird problem on one of my freshly installed 7. I've configured PSK on both sides (agent. Aug 25, 2016 · First try if the item works using Zabbix_get. 8. 4, and an active proxy. conf on W2016 and on Zabbix frontend for same host). 200. Since my agents are all located outside our zabbix-server network, the dns lookup obviously fails. I can get version, hostname and cpu data Jan 11, 2019 · RefreshActiveChecks. After restarting Zabbix services agent on Windows Nov 12, 2009 · When you configure an agent to do active checks, the agent proactively connects to the first server listed listed in the Server directive of the agent config. x). com] not found Feb 18, 2022 · all agents v2 using active checks. x, 192. The proxy is supposed to monitor 10 hosts with active checks. ADDITIONAL CONFIG. 33) shows zero item. # # Mandatory: no # Range: 2-65535 # Default: BufferSize=100 ### Option: MaxLinesPerSecond # Maximum number of new lines the agent will send per second to Zabbix Server # or Proxy processing 'log', 'logrt' and 'eventlog' active checks. The Zabbix server connects to this agent and polls the data. xxx. services: zabbix-server: image: zabbix/zabbix-server-mysql:alpine-5. Rename host "Zabbix Server" to "test. 084073 [101] no active checks on server [192. for passive items, zabbix server must be able to connect on port 10050 on agent ip, as configured in the host properties; 2. 741 active check configuration update from [*. Feb 20, 2020 · Code: no active checks on server [proxy. May 6, 2018 · The message indicates that the server cannot connect to the agent through port 10050. The version of proxy is 3. The message in the logs is: "no active checks on server [ip-address:10051]: connection of type" TLS with PSK "is not allowed for host" Zabbix server " " It should be? I also want to configure access to the zabbix control panel through https, but I do not have enough rights inside the containers. address. list of active checks - is a list of items for monitoring. I also added to the compose file hostname: zabbix-server to the main server to see if that would work. Changing the active server list. I finally can resolve my problem. agent log: Mar 28, 2017 · I have several hosts configured on the web interface, all working correctly (all seen by the proxy). Nov 3, 2016 · I'm trying to use agent to monitor server. Oct 27, 2010 · As walterheck said, it seems a misconfiguration either from the auto-discovery process (check the hostname that is given to auto-discovered machines) or because the agent configuration is not properly set up (check the Hostname parameter in zabbix_agentd. Mine do and I still cannot get it to work. log no active checks on server [127. 登录到Zabbix-Server的Web界面。 2. May 14, 2021 · Hi, I have Zabbix Server monitoring more than 1000 hosts and recently some hosts added are not sending data to the server. I'm in the process of setting up a new infrastructure, with a master Zabbix server in AWS Apr 23, 2024 · and connected Windows Server to Zabbix. B. : the server's local zabbix_agentd doesn't "active-check" neither. In zabbix_agentd. The servers to get the active checks from are listed in the 'ServerActive' parameter of the agent configuration file. As far as I can see, the passive monitoring is working as intended, but the active monitoring shows me the status "unknown": enter image description here. I keep getting below message from agent and server log zabbix_agent. # IPv6 addresses must be enclosed in square brackets if port for that host is specified. Description. However, when using the "zabbix agent (active)" interface, no data is sent to the server. The proxy communicates with the server under Administration -> Proxies but its not running active checks. 1) When you change the the options "Monitored by proxy" in the Host description, Zabbix Proxy will know about that after "ConfigFrequency=60" seconds and Zabbix Server will get the data back from proxy after "ConfigFrequency + DataSenderFrequency + Update Interval + small random amount of seconds". replace * with the correct parameter to test it using zabbix_get. Steps to reproduce: Install Linux Maschine with Name "testmachine01. I set up my lab as follows: Zabbix 6. They are using Active Checks. I have some disabled hosts in Zabbix which still have the Zabbix agent 2 service running. I have a Zabbix Proxy running on Raspien. To get active checks to work: The Hostname sent by the agent must match the host name configured in the GUI. Apr 11, 2010 · Active Agents resolved. Aug 14, 2015 · The problem is in your agent configuration file. Jun 27, 2012 · The agent will send # all collected data to Zabbix server or Proxy if the buffer is full. 08-09-2014, 17:11. T. Zabbix windows agent log: 2022/11/03 11:28:04. Currently the port 10051 is closed in client machine. linuxtest. 20076:20130604:114007. log 32674:20100501:172110. This line is telling the agent to check the server for active checks. lds" with Zabbix Agent. 201": host Exchange01 not found. 0 - it still works. 245. log is flodded with those lines: 795:20231013:153942. com ) we have enabled Active checks and we can see the domain pc. The frequency of asking for these checks is set by the 'RefreshActiveChecks' parameter in the same configuration file. 14 -Port 10051 -InformationLevel Detailed. May 21, 2017 · I have Zabbix server 2. Another workaround is to use only active items. I pulled the repository and ran docker-compose --profile all up -d. 16. If I check the server-logfile, it seems to have something to do with a dns lookup. Regards, Jan 10, 2015 · 10-01-2015, 03:13. 1] failed: host [test2. So if active checks successfully work for you, it is OK. x]: host [SAFLOK-PC] not found ( [SIMBA-GO] for my laptop). 0 ### Option: StartAgents # Number of pre-forked instances of zabbix_agentd that process passive checks. conf, you only need to change one parameter Server. 4 server. Mar 23, 2020 · When configuring passive checks in zabbix_agentd. of. Feb 23, 2022 · I am probably missing something very simple - but I can't for the life of me get active checks to work using linux or bsd agents with my zabbix server. Please test from server side: Code: nmap -p 10050 ip. Aug 9, 2014 · Active checks empty list from server. This means you need to convert all items from "zabbix agent" to "zabbix agent-active". 4 (172. 1. Or in the zabbix monitoring profile for the system. 21035:20201117:171847. com on Zabbix Server Hosts Lists ( i can see in GUI) . I have hundreds of computers at about 20 different locations running this agent, but only 2 exhibit this problem. Create Items for Machine with "Zabbix Agent (Active)" Checks and "Zabbix Agent" Checks. Posts: 3108. I am getting the following: no active checks on server [192. 0 servers (not upgraded servers!). I found in two kind of logs In /tmp/zabbix_agentd. Then at the bottom of that screen, click on "update". I have already check the hostname in the conf file, I have check if there is conection through 10050 and 10051 ports by telnet, I have check the hostname file to see if it is the same name when executing hostname command, I Jun 5, 2010 · According to screenshot this machine is called "Zabbix Server" not "test. Aug 17, 2012 · Then I realized that zabbix server is collecting data but it doesn't send email when a trigger goes off or doesn't show in the overview tab or dashboard if a host is down. 0 agent installed on the hosts. It is a comma-separated list of IP addresses and DNS names from which the agent will accept incoming connections. Oh, that makes sense. 60-3600. 0. conf StartAgents=0 Aug 3, 2022 · I think that this problem is related to the 3 network interfaces present on this proxy, i need all 3 interface to monitor host in 3 differernt vlan (192. Also you need to have "zabbix agent (active)" type items configured for the host. # 0 - not allowed # 1 - allowed # # Mandatory: no # Default: EnableRemoteCommands=1 ##### Passive checks related ### Option: Server # List of comma delimited IP addresses (or hostnames) of Zabbix servers. we are not using proxies in this minimized setup. I have defined a log item as an active check in a host called HOSTA. 166) both machines are in the same network. 04. When you set it, use only the IP of your Zabbix server. -k agent. 1]: host [zabsrv. They are also setup to be monitored by the proxy in the GUI. old zabbix server was upgraded to 6. 1:10051]: host [zabsrv. 0 install, same discovery\registration configs, same server config. 25-05-2011, 23:55. conf manually to the directory where zabbix_agentd. 4 to monitor 4 or 5 Bsd servers, 3 linux servers, and about 5 cisco/netgear switches and routers. local] not found Jun 4, 2015 · Attempting to telnet from ZABBIX01 to WEBSERVER03 on port 10050, success, while 10051 fails. And the dreaded "No active checks on server: host [mailserver] not found" is also available. localhost" in Zabbix. Is there a way around this, I would really like to enable checks on the Windows Eventviewer. The Get value from agent failed: cannot connect to {server:10050}: interrupted system call. Code: cannot send list of active checks to [10. After you make that change, you will need to restart your agent for it to take effect. , 192. 10. . Although number of total items shows up as 102, nothing comes up when clicked. ess:10051]: host [hostname] not found. Before installing the agent, copy conf/zabbix_agentd. no-ip. the server pin the proxy and the other way around also. 106 Hostname=Zabbix server. Jan 19, 2010 · Next step is to scroll all the way down and on the buttons across the bottom, click on the last one "Mass Update". 150. Attached Files. zabbix-agent has an environment variable named ZBX_HOSTNAME which should be the name of the hostname in the zabbix web hosts tab. Nov 19, 2011 · When I click on Configurations -> Hosts -> Items (for the server at 10. You have now made all the items for that template Sep 22, 2021 · Hello. According to screenshot this machine is called vm not mv in Zabbix. 2. Oct 20, 2023 · my setup: zabbix server and database are installed on WSL. Configure Maschine in Zabbix with Lower and Upper Case TESTMachine01. Mar 4, 2014 · We have Zabbix Server, Zabbix Proxy and Zabbix Clients. I commented out the hostname= line on the monitored server. Nov 12, 2018 · 14-12-2018, 17:58. /tmp directory is accesible for every user and the file /tmp/zabbix. I verfied the hostname on the monitored server matches the hostname on the Zabbix server. log. The first Server listed must be the proxy/server assigned to monitor the host. in my case it was Zabbix server. On the next screen, put a checkmark for the first item "Type" and then select Zabbix Agent (Active) from the dropdown list. # No spaces allowed. created new vm, clean 6. conf file on the OPNsense firewall side. 7 and the version of server is 3. Hi, I'm working with zabbix 2. ping] on host [zabbix] failed: first network error, wait for 15 seconds. # If port is not specified, default port is used. Nov 29, 2011 · I have Zabbix Server and windows Agent v 1. 575 No active checks on server: host [test2. 14-04-2020, 15:26. But be aware that when container is restarted, it's hostname and ip address will be different so you need to take care of it. 120. 30. When I tail the logs on the server, we get cannot send list of active checks to "10. Sep 19, 2021 · The Zabbix agent (Win64 5. So far I found it, that it has nothing to do with network or firewall issues, I was at the Dashboard when Jan 8, 2016 · Active checks are when Zabbix agent connects to Zabbix server instead. local] not found cat /tmp/zabbix_agentd. First entry is used for receiving list of and sending active Sep 27, 2012 · In client (pc. 1. 5 days ago · no active checks on server [:10051]: host [] not found. 20071:20130604:113907. the message in the log is this: active check configuration update from [server. All passive check are functioning. you have on the red Z in Zabbix frontend relates to passive checks. 452 Sending list of active checks to [127. xx:10051]: host [host1] not monitored. These are the same results on the win-intproxy-prod-01 Linux server. 5:10051]: host [opnsense. *:10051] is working again. exe --install. 8 These servers are on the same network not that it matters as zabbix_get works as expected. 14 : 10051) failed. Windows Server 2022 (172. We have about 150 servers currently reporting to a Zabbix 3. Name resolution is fine, in both directions. go_to_ellipsis. Jul 8, 2020 · Zabbix server sets the host availability icon to gray (unknown status) for the corresponding agent interface (Zabbix, SNMP, IPMI, JMX) if: there are no enabled items on the interface (they were removed or disabled); there are only active Zabbix agent items; host is disabled; 2 Active agent autoregistration Overview. To install a single instance of Zabbix agent with the default configuration file: zabbix_agentd. I run zabbix 5. 4. no. W. Nov 18, 2016 · # First IP address is sent to Zabbix server if connecting to it to retrieve list of active checks. Dec 12, 2017 · Hostname=hostname of the Zabbix Hosts that you configured in the Zabbix Server Frontend. Passive Checks have been disabled (StartAgent=0, Server= line is commented out) ServerActive= is set to the Proxy IP. It is possible to allow active Zabbix agent autoregistration, after which the server can start monitoring them. conf, must be the same that the Hostname defined in the zabbix server). Change that to whatever key it shows in the template item key section. com vi zabbix_agentd. Jul 1, 2015 · I've checked that the zabbix server port 10051 is accesible from the servers with telnet, and that they both can connect succesfully. - Uninstall Zabbix agent, delete the folder in Program Jan 30, 2022 · STEPS TO REPRODUCE. both vm ubuntu 20. Server is deployed on Centos7, agent is on W2016 Srv Std. # If set to 0, disables passive checks and the agent will not listen on any TCP port. log mentions agent #4 started [active checks] . test is chowned to be for zabbix user. Ticked "Enable PSK" and filled out the same identity and key. These 2 computers are on different networks at different locations. log 3303:20121024:145044. 318 Zabbix agent item [agent. 0 with the 7. Note that after failing to refresh active checks the next refresh will be attempted after 60 seconds. Aug 13, 2010 · # Whether remote commands from Zabbix server are allowed. After changing this at agent side you need to restart Agent. Active checks require Jan 5, 2010 · 25119:20100501:171910. Code: PS C:\Logs> Test-NetConnection -Computer 192. net. org:10051] started to fail (SSL_write() timed out) the message in the log from server: cannot send list of active May 26, 2005 · The server (linux) is listening on the zabbix ports, the client (Linux) agentd works fine for all functions but for these "active checks". If the monitoring profile does not include any you will get the error message you are seeing for the system. Apr 24, 2024 · I have a problem with active monitoring on Zabbix. *. 100. 447 cannot send list of active checks to " 127. next i shutdown old server, change ip on new vm to same, start > and no one agent joined. x. I thought the hostname should only put to the zabbix server (this is true if the agent is running on it), In the case of my windows systems I then changed the hostname to reflect the name of each document I had created for each system. BTW, hostname "mailserver" is exactly the same on Zabbix agent and server. but i have configured the hostname same as server, I took it copy past from the server. localhost" and replace "mv" by "vm" in zabbix agent configuration and it should be OK. The host name is correct but do I need to specify it in the zabbix_agentd. Installing agent as Windows service. Hostname=[B]SERVER[/B]487. 1 ": host [Zabbix server] not found Jun 30, 2020 · ##### Active checks related ### Option: ServerActive # List of comma delimited IP:port (or DNS name:port) pairs of Zabbix servers and Zabbix proxies for active checks. I know, "active checks" is a new feature in alpha9. Apr 14, 2020 · Unencrypted connections are not allowed. 119 (test. hostname is the key. in the network there is a Sophos Firewall with IP 172. I wanted to switch to active instead of passive checks. I have created an Active Check for a Windows Server: host configured in Zabbix Server: server487. com] not found zabbix_server. for active items, zabbix agents must be able to connect to the zabbix server on port 10051 and their Hostname directive in their config file must match host name on Jun 7, 2022 · Zabbixのアイテムで「 Zabbixエージェント(アクティブ) 」タイプの監視をする際、 Zabbix Agentの設定 が間違っていると、アイテムの 取得不可 エラーで 監視データが取得できない 場合があります。 そんな時、ほとんどの場合は設定が間違っていることが多いです。 Mar 11, 2022 · Identity and key set (using openssl rand -hex 32) Installed Windows Agent 2. The log item monitors a file in /tmp/zabbix. 1:10051]: host [Zabbix server] not found And and my zabbix_server. The hosts all have Zabbix Agent installed, the host name in their configuration file match the host name on Zabbix, their active server is the Zabbix Proxy. 2) The changes of options in frontend and in Sep 15, 2020 · Hostname of your container is zabbix-agent-69bsg so you should add host with that name on your zabbix server and set it that is monitored by the proxy. lm kw ze pa zw tj qi za fi dh