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The service in the monitored server is called Agent. This document will describe how to install the Agent on the monitored server and connect it with Dashboard

Install Agent using one-click script

Nezha Monitoring now supports one-click installation of the Agent on Windows and Linux. Follow the steps in this document and you can easily deploy it on your server

Preparation

First of all, you need to set up the communication domain name in the settings page of the admin panel, this domain name can not connect to the CDN, here is the sample communication domain name "data.example.com" mentioned earlier for demonstration
Enter the administration panel, go to the "Settings" page, in the item "CDN Bypassed Domain/IP ", fill in the communication domain name, and then click "Save"

One-click installation on Linux

  • First add a server in the admin panel
  • Click on the green Linux icon button next to the newly added server and copy the one-click installation command
  • Run the copied one-click installation command on the monitored server, wait for the installation to complete, and then return to the Dashboard home page to see if the server is online.

One-click installation on Windows

  • First add a server in the admin panel
  • Click on the green Linux icon button next to the newly added server and copy the one-click installation command
  • Login to Windows Server, open PowerShell, and run the copied installation command in PowerShell
  • If you encounter the prompt "Implement Policy Change" please select Y
  • Wait for the installation to complete and return to the Dashboard home page to see if the server is online



Other ways to install Agent


Installing Agent on Linux

  • First add a server in the admin panel
  • In the monitored server, run the script:
curl -L https://raw.githubusercontent.com/naiba/nezha/master/script/install_en.sh  -o nezha.sh && chmod +x nezha.sh && sudo ./nezha.sh
  • Select “Install_agent”
  • Input the communication domain name, e.g. "data.example.com"
  • Input RPC port, default is 5555
  • Input the Agent Secret, which is generated when adding a server in the administration panel and can be found in the " Servers " page of the administration panel
  • Wait for the installation to complete and return to the Dashboard home page to see if the server is online

Installing Agent on Windows

Installing Agent on MacOS

This section is adapted from Mitsea Blog, with permission from the original author


::: warning
If you are prompted with "macOS cannot verify this app" during installation, please go to system settings to allow the app to run.
:::

  • First add a server in the admin panel
  • Go to the Release page to download the Agent binary and choose whether to download the darwin amd64 or arm64 Agent depending on the CPU architecture
    For example, download the amd64 version for Intel CPU and the arm64 version for Apple Silicon. After downloading, extract the Agent binary file, e.g. to the Download folder
  • Create a new file named nezha_agent.plist and save it, edit the contents of the file:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>Disabled</key>
	<false/>
	<key>Label</key>
	<string>nezha_agent</string>
	<key>Program</key>
	<string>Change the path of the Agent binary here, e.g. /Users/123/Downloads/nezha-agent</string>
	<key>ProgramArguments</key>
	<array>
		<string>Change the path of the Agent binary here, e.g. /Users/123/Downloads/nezha-agent</string>
		<string>--password</string>
		<string>Communication Secret, eg: 529664783eeb23cc25</string>
		<string>--server</string>
		<string>Communication URL and RPC port, eg:data.example.com:5555</string>
	</array>
	<key>RunAtLoad</key>
	<true/>
</dict>
</plist>
  • Use the following command in Terminal to load the plist file into launchd
    Be sure to change the file path
launchctl load /Users/123/Desktop/nezha_agent.plist
  • Start Service
launchctl start nezha_agent
  • Check if the service is running
launchctl list | grep nezha_agent
  • Stop service and remove
launchctl stop nezha_agent

launchctl remove nezha_agent

Installing Agent on OpenWRT

How to make the old version of OpenWRT/LEDE self-boot?

How to make the new version of OpenWRT self-boot? By @艾斯德斯

  • First download the corresponding binary from the release, unzip the zip package and place it in /root
  • Then run chmod +x /root/nezha-agent to give it execute access, create file /etc/init.d/nezha-service：
#!/bin/sh /etc/rc.common

START=99
USE_PROCD=1

start_service() {
 procd_open_instance
 procd_set_param command /root/nezha-agent -s data.example.com:5555 -p secreat -d
 procd_set_param respawn
 procd_close_instance
}

stop_service() {
    killall nezha-agent
}

restart() {
 stop
 sleep 2
 start
}
  • Give it permission to execute: chmod +x /etc/init.d/nezha-service
  • Start the service /etc/init.d/nezha-service enable && /etc/init.d/nezha-service start

Customize Agent

Customize the NIC and hard drive partitions to be monitored

  • Run /opt/nezha/agent/nezha-agent --edit-agent-config to select a custom NIC and partition, and then restart Agent

Other Flags

Run ./nezha-agent --help to view supported flags，if you are already using the one-click script, you can edit /etc/systemd/system/nezha-agent.service，at the end of this line ExecStart= add:

  • --report-delay System information reporting interval, default is 1 second, can be set to 3 to reduce the system resource usage on the agent side (configuration range 1-4)
  • --skip-conn Not monitoring the number of connections, if it is a server with a large number of connections, the CPU usage will be high. It is recommended to set this to reduce CPU usage
  • --skip-procs Disable monitoring the number of processes can also reduce CPU and memory usage
  • --disable-auto-update Disable Automatic Update Agent (security feature)
  • --disable-force-update Disable Forced Update Agent (security feature)
  • --disable-command-execute Disable execution of scheduled tasks, disallow WebShell (security feature)
  • --tls Enable SSL/TLS encryption (If you are using nginx to reverse proxy Agent´s grpc connections, and if nginx has SSL/TLS enabled, you need to enable this configuration)

FAQ

Is there a Docker image for Agent?

There is currently no Docker image for Agent.
The Agent is designed to be the opposite of the Dashboard, in that the Dashboard is designed to work without affecting the server as much as possible, while the Agent needs to execute monitoring services and run commands in the server.
Putting the Agent in a container does continue to execute monitoring services, but features such as WebShell do not work, so we do not provide Docker image of the Agent.