Step by step monitoring platform ZABBIX

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One 、zabbix brief introduction

1、 What is? zabbix

• zabbix It's based on Web The interface provides enterprise level open source solutions for distributed system monitoring and network monitoring .
• zabbix Can monitor all kinds of network parameters , Ensure the safe operation of the server system ; And provide a flexible notification mechanism to allow system administrators to quickly locate / Solve all kinds of problems .
• zabbix from 2 Part of the form ,zabbix server With optional components zabbix agent. adopt C/S Mode acquisition data , adopt B/S Patterns in Web End display and configuration .
• zabbix server Can pass SNMP,zabbix agent,ping, Port monitoring and other methods are provided for remote servers / Monitoring of network status , Data collection and other functions , It can run in Linux Platforms such as .
• zabbix agent It needs to be installed on the monitored target server , It mainly completes the hardware information or memory related to the operating system ,CPU And so on .

2、zabbix Monitoring principle ：

zabbix agent Installed on the monitored host ,zabbix agent Responsible for collecting local data of client regularly , And send it to zabbix server End ,zabbix server After receiving the data , Store data in database , User based Zabbix WEB You can see the data showing the image in the front end . When zabbix Monitor a specific project , The project sets a trigger threshold , When the monitored index exceeds the threshold set by the trigger , Will do some necessary actions , Actions include ： Send a message （ mail 、 WeChat 、 SMS ）、 dispatch orders （shell command 、reboot、restart、install etc. ）.

3、zabbix common 5 Procedures

abbix Monitoring is deployed in the system , Contains five common programs : zabbix_server、zabbix_agent、zabbix_proxy、zabbix_get、zabbix_sender etc. .

• zabbix server：zabbix Server daemons , among zabbix_agent、zabbix_get、zabbix_sender、zabbix_proxy All the data will eventually be submitted to zabbix server;
• zabbix agent： Client daemons , Responsible for collecting client data , for example : collect CPU load 、 Memory 、 Hard disk usage, etc ;
• zabbix proxy：zabbix Distributed agent daemon , Usually greater than 500 Console host , Distributed monitoring architecture deployment is required ;
• zabbix get：zabbix Data receiving tools , Commands used alone , Usually in server perhaps proxy Command to obtain remote client information ;
• zabbix sender：zabbix Data sending tool , Users send data to server or proxy End , Usually, the user takes a long time to check .

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Two 、 install zabbix

Experiment preparation

zabbix-server：20.0.0.5
zabbix-agent：20.0.0.6

1.## Turn off firewall , Modify hostname 
systemctl disable --now firewalld
setenforce 0
hostnamectl set-hostname zbx-server
su

##2、 obtain zabbix  Download source 
rpm -ivh https://mirrors.aliyun.com/zabbix/zabbix/5.0/rhel/7/x86_64/zabbix-release-5.0-1.el7.noarch.rpm 
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##3、 Replace  zabbix.repo  For aliyuan , install zabbix-server-mysql and zabbix-agent
cd /etc/yum.repos.d
sed -i 's#http://repo.zabbix.com#https://mirrors.aliyun.com/zabbix#' zabbix.repo​
yum clean all && yum makecache
 ​
yum install -y zabbix-server-mysql zabbix-agent

# install SCL（Software Collections）, It is convenient for later installation of higher version of  php, Default  yum  Installed  php  Version is  5.4, Version is too low ,zabbix 5.0  Version pair  php  The minimum version is  7.2.0  edition .SCL  You can use multiple versions of software on the same machine , Without affecting the dependent environment of the whole system . The package will be installed in  /etc/opt/rh  Under the table of contents .
yum install -y centos-release-scl 
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##4、 modify  zabbix-front  Front end source , install  zabbix  Front end environment to  scl  In the environment 
vim /etc/yum.repos.d/zabbix.repo
 ......
 [zabbix-frontend]
 ......
 enabled=1          # Open the installation source 
 ......
 ​
yum install -y zabbix-web-mysql-scl zabbix-apache-conf-scl   # install zabbix Front end environment to  scl  In the environment 
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##5、 install  zabbix  The required database 
yum install -y mariadb-server mariadb​
systemctl enable --now mariadb    # Set the database to start automatically , And start immediately ​
mysql_secure_installation         # Initialize database , And set the password , Such as  abc123

##6、 Add database users , as well as  zabbix  Required database information 
mysql -u root -pabc123      # Log in to the database 
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CREATE DATABASE zabbix character set utf8 collate utf8_bin;    # Set up utf8 Character set 
GRANT all ON zabbix.* TO 'zabbix'@'%' IDENTIFIED BY 'zabbix';  # Create and authorize users , bring zabbix Access to database 
flush privileges;   # Refresh the permissions 
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# Query for installed zabbix-server-mysql List of files , find  sql.gz  The location of the file 
rpm -ql zabbix-server-mysql
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# Import database information , Use zcat take sql.gz File import database 
zcat /usr/share/doc/zabbix-server-mysql-5.0.25/create.sql.gz | mysql -uroot -pabc123 zabbix   
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##7、 modify  zabbix-server  The configuration file , Change the password of the database 
vim /etc/zabbix/zabbix_server.conf 
......
DBPassword=zabbix     #124 That's ok , uncomment , Appoint  zabbix  Database password ,DBPassword The value of is database authorization zabbix User's password .
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##8、 modify  zabbix  Of  php  The configuration file 
vim /etc/opt/rh/rh-php72/php-fpm.d/zabbix.conf
 ......
php_value[date.timezone] = Asia/Shanghai        #25 That's ok , uncomment , Change the time zone 

## start-up  zabbix  Related services 
systemctl restart zabbix-server zabbix-agent httpd rh-php72-php-fpm
systemctl enable zabbix-server zabbix-agent httpd rh-php72-php-fpm

 Browser access ：http://20.0.0.5/zabbix
 Click next , Set the password of the database  zabbix
 After installation , The default login account and password are ：Admin/zabbix
 Set the file interface ： Click on the menu bar on the left 【User settings】,【Language】 choice  Chinese(zh_CN), Click again  Update  to update .

solve zabbix-server Web Page Chinese garbled problem

yum install -y wqy-microhei-fonts
cp -f /usr/share/fonts/wqy-microhei/wqy-microhei.ttc /usr/share/fonts/dejavu/DejaVuSans.ttf

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