CentOS 7.8 x64 安装zabbix 5.0 LTS

官网教程

https://www.zabbix.com/download?zabbix=5.0&os_distribution=centos&os_version=7&db=mysql&ws=nginx

手把手安装

安装zabbix库

$ rpm -Uvh https://repo.zabbix.com/zabbix/5.0/rhel/7/x86_64/zabbix-release-5.0-1.el7.noarch.rpm	
$ yum clean all	【清除yum缓存】

安装zabbix server 和 agent

$ yum install zabbix-server-mysql zabbix-agent
【后面出现的交互确认 全部选择Y】

安装zabbix前端

$ yum install centos-release-scl	【安装前端release】

$ vi /etc/yum.repos.d/zabbix.repo
【修改配置】
	...
	enabled=1
	...

安装mysql数据库
- 本次mysql安装我们选择rpm安装方式，安装的mysql版本为5.7.30
1. 下载mysql 5.7.30 rpm包
  - wget -i -c http://dev.mysql.com/get/mysql-5.7.30-1.el7.x86_64.rpm-bundle.tar
2. 解压
  - tar -xvf mysql-5.7.30-1.el7.x86_64.rpm-bundle.tar
3. 查看系统里是否已经有安装过mysql，有则卸载
  - rpm -qa|grep mariadb 【查看】
  - rpm -e --nodeps mariadb-libs-5.5.65-1.el7.x86_64【卸载】
4. 安装mysql5.7所需要的依赖
  - yum install libaio
  - yum install perl
  - yum install net-tools
5. 安装mysql
  - rpm -ivh mysql-community-common-5.7.30-1.el7.x86_64.rpm
  - rpm -ivh mysql-community-libs-5.7.30-1.el7.x86_64.rpm
  - rpm -ivh mysql-community-libs-compat-5.7.30-1.el7.x86_64.rpm
  - rpm -ivh mysql-community-client-5.7.30-1.el7.x86_64.rpm
  - rpm -ivh mysql-community-server-5.7.30-1.el7.x86_64.rpm
6. 配置mysql数据库
  - 启动mysql
    - systemctl start mysqld.service
  - 查看mysql运行状态
    - systemctl status mysqld.service
  - 找到root初始密码
    - grep "password" /var/log/mysqld.log
  - 修改root密码
    - ALTER USER 'root'@'localhost' IDENTIFIED BY 'new password';
  - 开启mysql的远程访问【下面命令开启的IP是 192.168.0.1，如要开启所有的，用%代替IP】
    - grant all privileges on . to 'root'@'192.168.0.1' identified by 'password' with grant option;
    - flush privileges;
    - exit
  - 为firewalld添加开放端口【添加mysql端口3306和Tomcat端口8080】
    - firewall-cmd --zone=public --add-port=3306/tcp --permanent
    - firewall-cmd --zone=public --add-port=8080/tcp --permanent
    - 或者选择吧firewalld服务临时关闭【service firewalld stop】
  - 修改字符集
    - 描述【重新登录mysql，然后输入status，经过观察，不难发现里面有两个不是utf-8】
    - 改为utf-8方法：
      - vi /etc/my.cnf
      - 新增下列四行 [client] default-character-set=utf8 character-set-server=utf8 collation-server=utf8_general_ci
      - 实现的效果如下所示： ``` [client] default-character-set=utf8 # For advice on how to change settings please see # http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html [mysqld] # # Remove leading # and set to the amount of RAM for the most important data # cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%. # innodb_buffer_pool_size = 128M # # Remove leading # to turn on a very important data integrity option: logging # changes to the binary log between backups. # log_bin # # Remove leading # to set options mainly useful for reporting servers. # The server defaults are faster for transactions and fast SELECTs. # Adjust sizes as needed, experiment to find the optimal values. # join_buffer_size = 128M # sort_buffer_size = 2M # read_rnd_buffer_size = 2M datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock character-set-server=utf8 collation-server=utf8_general_ci # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid ```
      - 重启mysqld 服务
初始化zabbix的数据库
- note：
  - ```
  mysql口令：root abcD_123
  zabbix口令：zabbix abcD_123
```
- mysql> create database zabbix character set utf8 collate utf8_bin; 【修改字符集】
- mysql> create user zabbix@localhost identified by 'password';【创建用户zabbix和密码】
- mysql> grant all privileges on zabbix.* to zabbix@localhost;【授权登录】
- mysql> quit;
- ```
$ zcat /usr/share/doc/zabbix-server-mysql*/create.sql.gz | mysql -uzabbix -p zabbix 【导入初始化的schema和数据】
```

zabbix server配置

$ vi /etc/zabbix/zabbix_server.conf
DBPassword=password【将数据库password填入】

zabbx前端php配置

$ vi /etc/opt/rh/rh-nginx116/nginx/conf.d/zabbix.conf
【解开注释】
# listen 80;
# server_name example.com;

$ vi /etc/opt/rh/rh-php72/php-fpm.d/zabbix.conf
【修改为】
listen.acl_users = apache,nginx

【解开注释】
php_value[date.timezone] = Asia/Shanghai

启动zabbix server and agent 进程

$ systemctl restart zabbix-server zabbix-agent rh-nginx116-nginx rh-php72-php-fpm
$ systemctl enable zabbix-server zabbix-agent rh-nginx116-nginx rh-php72-php-fpm

登录zabbix
- 官方quick start：https://www.zabbix.com/documentation/5.0/manual/quickstart/login
- 默认密码是Admin/zabbix
安装完成后遇到的问题
- 问题描述：登录zabbix前端，发现界面下方一直有报错，报错释义”zabbix server启动失败“
- 查看日志：/var/log/zabbix/zabbix_server.log , 发现无法绑定socket到zabbix_server_alerter.sock，访问被拒绝
- 原因：selinux问题
- 解决方法：关闭selunx
  - ```
  $ sestatus【查看selinux状态】
  $ vi /etc/selinux/config
  【配置修改如下】
  ...
  SELINUX=disabled
  ...
  SELINUXTYPE=targeted 
  
  $ reboot 【修改配置文件，重启永久关闭】
  或者 $ setenforce 0【临时关闭】
```