Shulou(Shulou.com)06/02 Report--

First, compile and install Zabbix client under Linux

# abbix Agent compile and install yum install-y gcc gcc-c++ make pcre-develuseradd-s / sbin/nologin zabbixcd / usr/local/src/wget 'https://nchc.dl.sourceforge.net/project/zabbix/ZABBIX%20Latest%20Stable/4.0.3/zabbix-4.0.3.tar.gz'tar-zxvf zabbix-4.0.3.tar.gzcd zabbix-4.0.3./configure-- prefix=/usr/local/zabbix-- enable-agentmake & & make installchown zabbix:zabbix -R / usr/local/zabbix/# environment variable configuration vim / etc/profileexport PATH=$PATH:/usr/local/zabbix/sbin/:/usr/local/zabbix/bin/#zabbix agent configuration The ivrpPidFile=/usr/local/zabbix/zabbix_agentd.pidLogFile=/usr/local/zabbix/zabbix_agentd.logHostname=xxx configured on Server and ServerActive is zabbix server's ivrpPidFile=/usr/local/zabbix/zabbix_agentd.pidLogFile=/usr/local/zabbix/zabbix_agentd.logHostname=xxx # fill in the hostname or the hostname in zabbix Server=xxx # # zabbix server address ServerActive=xxx # # zabbix server address is equivalent to access whitelist UnsafeUserParameters=1Include=/usr/local/zabbix/etc/zabbix_agentd.conf.d/*.confzabbix agent startup / usr/local/zabbix/sbin/zabbix_agentd

Second, zabbix_agent monitors cpu disk traffic, etc.

Zabbix_get

Zabbix provides a zabbix_get tool that can communicate with zabbix agent to obtain monitoring information.

Usage: zabbix_get-s xxx-k xxx

Zabbix agent view all items that can be monitored: zabbix_agentd-p

Add through templat

Monitor cpu load

Key: system.cpu.load [all,avg1] float type

Key: system.cpu.load [all,avg5] float type

Key: system.cpu.load [all,avg15] float type

Monitor cpu usage and Idle

System.cpu.util [, iowait,] float type

System.cpu.util [, system,] float type

System.cpu.util [, user,] float type

System.cpu.util [, idle,] float type idle

Monitor the remaining memory (buffers\ cached is actually remaining)

Vm.memory.size [available] integer

Monitoring disk

Name: Disk pfree on $1

Name: inode pfree on $1

Vfs.fs.size [/, pfree] float type

Vfs.fs.inode [/, pfree] float type

Monitoring traffic

The net.if.in [eth0] integer (rate per second) returns bytes by default, which requires 8.

The net.if.out [eth0] integer (rate per second) returns bytes by default, which requires 8.

Monitoring traffic needs preprocessing

Third, zabbix active and passive mode

Active active:agent requests server to obtain a list of active monitoring items, and actively submits the data to be detected in the monitoring items to server/proxy

Server is less stressful, but some types do not support it.

Server has a timeout limit for retrieving data. The maximum timeout time is 30 seconds. If data retrieval is often more than 30 seconds, it is not recommended to use agent in active mode. You can use the following types of agent active

Passive: server requests agent to obtain data of monitoring items, and agent returns data

Passive mode:

Supported items communication process

Server opens a TCP connection

Server sends request agent.ping\ n

Agent receives the request and responds to 1

Server processes received data 1

Close the TCP connection

Not supported items communication process (type not supported)

Server opens a TCP connection

Server sends request vfs.fs.size [/ nono]\ n

Agent receives the request and returns the response data ZBX_NOTSUPPORTED\ 0Cannot obtain filesystem information: [2] No such file or directory

Server receives and processes data, changing the status of item to "not supported"

Active mode

Agent opens TCP connection (active detection becomes Agent open)

Agent request items check list

Server returns the items list

Agent handles the response

Close the TCP connection

Agent starts collecting data

Use templates to monitor linux

Use the template linux os template in the template to monitor linux-related system information (pay attention to clear the relevant useless monitoring items, because the database writing pressure is very high with the increase of monitoring)

Automatic discovery in template linux os requires both hostname and computer name to be found automatically by check now immediately.

If not, you may report Cannot send request: host is not monitored. Error

Four: zabbix custom key monitoring linux server

Custom key description

All languages, as long as you can run the returned results

Common languages of operation and maintenance: Shell, Python

Custom key is divided into parameter script and no parameter script.

No parameter script

For example:

Free-m | grep 'Mem:' | awk' {print $NF}'# in the agent machine, vim / usr/local/zabbix/etc/zabbix_agentd.conf.d/mem.confUserParameter=mem.available,sh / tmp/memavailable.sh # # UserParameter name is key name chmod astatx memavailable.sh # # restart agent, test zabbix_get-s 192.168.0.102-k mem.available## if not soupout is displayed, check script firewall port, etc.

Adding a custom key is similar to adding an item for a template. Note that adding a trigger tigers is based on the value returned by the script.

The key name is the name in the configuration file

Script with parameters

Compared with no parameter script, parameter script can follow parameters when writing item.

# shell script / tmp/mem.shcase "$1" in "available") free-m | grep 'Mem:' | awk' {print $NF}';; "total") free-m | grep 'Mem:' | awk' {print $2}';; "used") free-m | grep 'Mem:' | awk' {print $3}';; *) echo "not supported" EsacUserParameter=mem.check [*], sh / tmp/mem.sh $1 million # Test zabbix_get-s 192.168.0.101-k mem.check [availabl]

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