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# This is a configuration file for Zabbix agent daemon (Unix)

# To get more information about Zabbix, visit http://www.zabbix.com

############ GENERAL PARAMETERS #################

### Option: PidFile

# Name of PID file.

#

# Mandatory: no

# Default:

# PidFile=/tmp/zabbix_agentd.pid

PidFile=/var/run/zabbix/zabbix_agentd.pid

进程存储文件

### Option: LogType

# Specifies where log messages are written to:

# system  - syslog

# file    - file specified with LogFile parameter

# console - standard output

#

# Mandatory: no

# Default:

# LogType=file

日志文件的类型

### Option: LogFile

# Log file name for LogType 'file' parameter.

#

# Mandatory: no

# Default:

# LogFile=

LogFile=/var/log/zabbix/zabbix_agentd.log

日志文件的位置

### Option: LogFileSize

# Maximum size of log file in MB.

# 0 - disable automatic log rotation.

#

# Mandatory: no

# Range: 0-1024

# Default:

# LogFileSize=1

LogFileSize=0

日志文件大小，0是不自动覆盖

### Option: DebugLevel

# Specifies debug level:

# 0 - basic information about starting and stopping of Zabbix processes

# 1 - critical information

# 2 - error information

# 3 - warnings

# 4 - for debugging (produces lots of information)

# 5 - extended debugging (produces even more information)

#

# Mandatory: no

# Range: 0-5

# Default:

# DebugLevel=3

0 - basic information about starting and stopping of Zabbix processes

1 - critical级别

2 - error级别

3 - warnings级别

4 - debug级别

5 - extended debugging (与级别4一样. 只能使用runtime control 来设置.)

默认是3

### Option: SourceIP

# Source IP address for outgoing connections.

#

# Mandatory: no

# Default:

# SourceIP=

zabbix对外连接的出口IP地址

以下两个参数，后期在弄

### Option: EnableRemoteCommands

# Whether remote commands from Zabbix server are allowed.

# 0 - not allowed

# 1 - allowed

#

# Mandatory: no

# Default:

# EnableRemoteCommands=0

可以通过zabbix服务器去远程的控制agent

### Option: LogRemoteCommands

# Enable logging of executed shell commands as warnings.

# 0 - disabled

# 1 - enabled

#

# Mandatory: no

# Default:

# LogRemoteCommands=0

记录原型执行的shell命令日志，级别为warrning

##### Passive checks related

### Option: Server

# List of comma delimited IP addresses, optionally in CIDR notation, or hostnames of Zabbix servers and Zabbix proxies.

# Incoming connections will be accepted only from the hosts listed here.

# If IPv6 support is enabled then '127.0.0.1', '::127.0.0.1', '::ffff:127.0.0.1' are treated equally and '::/0' will allow any IPv4 or IPv6 address.

# '0.0.0.0/0' can be used to allow any IPv4 address.

# Example: Server=127.0.0.1,192.168.1.0/24,::1,2001:db8::/32,zabbix.domain

#

# Mandatory: yes, if StartAgents is not explicitly set to 0

# Default:

# Server=

Server=192.168.0.251

允许列表中的主机server接入agent，如果是不能明确指定server的IP，设置为0就可以，但是这个是一个强制的指令

### Option: ListenPort

# Agent will listen on this port for connections from the server.

#

# Mandatory: no

# Range: 1024-32767

# Default:

# ListenPort=10050

agent的默认端口

取值范围1024-32767

### Option: ListenIP

# List of comma delimited IP addresses that the agent should listen on.

# First IP address is sent to Zabbix server if connecting to it to retrieve list of active checks.

#

# Mandatory: no

# Default:

# ListenIP=0.0.0.0

监听IP地址，默认为所有接口，多个ip之间使用逗号分隔

### Option: StartAgents

# Number of pre-forked instances of zabbix_agentd that process passive checks.

# If set to 0, disables passive checks and the agent will not listen on any TCP port.

#

# Mandatory: no

# Range: 0-100

# Default:

# StartAgents=3

zabbix启动之后开启被动监控的进程数量，如果设置为0，那么zabbix被动监控被禁用，并且不会监听相应端口，也就是说10050端口不会开启。

##### Active checks related

### Option: ServerActive

# List of comma delimited IP:port (or hostname:port) pairs of Zabbix servers and Zabbix proxies for active checks.

# If port is not specified, default port is used.

# IPv6 addresses must be enclosed in square brackets if port for that host is specified.

# If port is not specified, square brackets for IPv6 addresses are optional.

# If this parameter is not specified, active checks are disabled.

# Example: ServerActive=127.0.0.1:20051,zabbix.domain,[::1]:30051,::1,[12fc::1]

#

# Mandatory: no

# Default:

# ServerActive=

ServerActive=192.168.0.251

zabbix 主动监控server的ip地址，使用逗号分隔多IP

如果注释这个选项，那么当前服务器的主动监控就被禁用了

### Option: Hostname

# Unique, case sensitive hostname.

# Required for active checks and must match hostname as configured on the server.

# Value is acquired from HostnameItem if undefined.

#

# Mandatory: no

# Default:

# Hostname=

Hostname=Zabbix

### Option: HostnameItem

# Item used for generating Hostname if it is undefined. Ignored if Hostname is defined.

# Does not support UserParameters or aliases.

#

# Mandatory: no

# Default:

# HostnameItem=system.hostname

### Option: HostMetadata

# Optional parameter that defines host metadata.

# Host metadata is used at host auto-registration process.

# An agent will issue an error and not start if the value is over limit of 255 characters.

# If not defined, value will be acquired from HostMetadataItem.

#

# Mandatory: no

# Range: 0-255 characters

# Default:

# HostMetadata=

### Option: HostMetadataItem

# Optional parameter that defines an item used for getting host metadata.

# Host metadata is used at host auto-registration process.

# During an auto-registration request an agent will log a warning message if

# the value returned by specified item is over limit of 255 characters.

# This option is only used when HostMetadata is not defined.

#

# Mandatory: no

# Default:

# HostMetadataItem=

### Option: RefreshActiveChecks

# How often list of active checks is refreshed, in seconds.

#

# Mandatory: no

# Range: 60-3600

# Default:

# RefreshActiveChecks=120

多久时间（秒）刷新一次主动监控配置信息，如果刷新失败，那么60秒之后会重试一次

### Option: BufferSend

# Do not keep data longer than N seconds in buffer.

#

# Mandatory: no

# Range: 1-3600

# Default:

# BufferSend=5

数据存储在buffer中最长多少秒

默认是5

取值范围是1-3600

### Option: BufferSize

# Maximum number of values in a memory buffer. The agent will send

# all collected data to Zabbix Server or Proxy if the buffer is full.

#

# Mandatory: no

# Range: 2-65535

# Default:

# BufferSize=100

buffer最大值，如果buffer满了，zabbix将会将检索到的数据发送给zabbix server或者proxy

默认是100

取值范围是2-65535

### Option: MaxLinesPerSecond

# Maximum number of new lines the agent will send per second to Zabbix Server

# or Proxy processing 'log' and 'logrt' active checks.

# The provided value will be overridden by the parameter 'maxlines',

# provided in 'log' or 'logrt' item keys.

#

# Mandatory: no

# Range: 1-1000

# Default:

# MaxLinesPerSecond=20

处理监控类型为log何eventlog日志时，agent每秒最大发送的行数。默认为100行

############ ADVANCED PARAMETERS #################

### Option: Alias

# Sets an alias for an item key. It can be used to substitute long and complex item key with a smaller and simpler one.

# Multiple Alias parameters may be present. Multiple parameters with the same Alias key are not allowed.

# Different Alias keys may reference the same item key.

# For example, to retrieve the ID of user 'zabbix':

# Alias=zabbix.userid:vfs.file.regexp[/etc/passwd,^zabbix:.:([0-9]+),,,,\1]

# Now shorthand key zabbix.userid may be used to retrieve data.

# Aliases can be used in HostMetadataItem but not in HostnameItem parameters.

#

# Mandatory: no

# Range:

# Default:

### Option: Timeout

# Spend no more than Timeout seconds on processing

#

# Mandatory: no

# Range: 1-30

# Default:

# Timeout=3

超时时间

### Option: AllowRoot

# Allow the agent to run as 'root'. If disabled and the agent is started by 'root', the agent

# will try to switch to the user specified by the User configuration option instead.

# Has no effect if started under a regular user.

# 0 - do not allow

# 1 - allow

#

# Mandatory: no

# Default:

# AllowRoot=0

是否允许使用root身份运行zabbix，如果值为0，并且是在root环境下，zabbix会尝试使用zabbix用户运行，如果不存在会告知zabbix用户不存在。

0 - 不允许

1 - 允许

### Option: User

# Drop privileges to a specific, existing user on the system.

# Only has effect if run as 'root' and AllowRoot is disabled.

#

# Mandatory: no

# Default:

# User=zabbix

运行zabbix程序的用户，如果AllowRoot被禁用，才有效果

### Option: Include

# You may include individual files or all files in a directory in the configuration file.

# Installing Zabbix will create include directory in /usr/local/etc, unless modified during the compile time.

#

# Mandatory: no

# Default:

# Include=

Include=/etc/zabbix/zabbix_agentd.d/*.conf

包含的配置文件路径

# Include=/usr/local/etc/zabbix_agentd.userparams.conf

# Include=/usr/local/etc/zabbix_agentd.conf.d/

# Include=/usr/local/etc/zabbix_agentd.conf.d/*.conf

####### USER-DEFINED MONITORED PARAMETERS #######

### Option: UnsafeUserParameters

# Allow all characters to be passed in arguments to user-defined parameters.

# The following characters are not allowed:

# \ ' " ` * ? [ ] { } ~ $ ! & ; ( ) < > | # @

# Additionally, newline characters are not allowed.

# 0 - do not allow

# 1 - allow

#

# Mandatory: no

# Range: 0-1

# Default:

# UnsafeUserParameters=0

允许所有字符的参数传递给用户定义的参数。

### Option: UserParameter

# User-defined parameter to monitor. There can be several user-defined parameters.

# Format: UserParameter=<key>,<shell command>

# See 'zabbix_agentd' directory for examples.

#

# Mandatory: no

# Default:

# UserParameter=

用户自定义key

####### LOADABLE MODULES #######

### Option: LoadModulePath

# Full path to location of agent modules.

# Default depends on compilation options.

#

# Mandatory: no

# Default:

# LoadModulePath=${libdir}/modules

模块路径，绝对路径

### Option: LoadModule

# Module to load at agent startup. Modules are used to extend functionality of the agent.

# Format: LoadModule=<module.so>

# The modules must be located in directory specified by LoadModulePath.

# It is allowed to include multiple LoadModule parameters.

#

# Mandatory: no

# Default:

# LoadModule=

加载模块文件，可以写多个

格式: LoadModule=

必须配置LoadModulePath，指定模块目录

以下应该是关于认证的一些选项内容，具体后边再看。