Centos 8.5 安装Zabbix 6.0 + mysql 8.0
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系统运维,网络运维

706 字
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15 分钟

部署背景

以前部署使用的zabbix6.0 默认装的都是MariaDB ，但是MariaDB在日常维护过程，比较不方便。

在重启服务时，如果InnoDB 需要将内存（Buffer Pool）中修改过但还没写到磁盘的数据全部刷入磁盘。如果innodb_buffer_pool_size 很大且写入频繁，这个过程会很久。

如果重启是因为崩溃（Crash）或异常终止，MariaDB 启动时会进行 Crash Recovery。如果有未提交的大事务，它必须逐条回滚。

而且原有的服务器装在了HDD上，硬盘读写也不给力，这次重新新建，也顺便将其迁移到SSD存储上。

环境

OS: Centos 8.5.2.111

部署过程

系统的安装不再叙述。

设置网络ip地址/DNS等

[root@localhost]# ip add
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group defaul                                                                                                                              t qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: ens192: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group de                                                                                                                              fault qlen 1000
    link/ether 00:50:56:8c:80:f3 brd ff:ff:ff:ff:ff:ff
    inet 10.165.44.16/24 brd 10.165.44.255 scope global noprefixroute ens192
       valid_lft forever preferred_lft forever
    inet6 fe80::3105:fddd:357a:49e5/64 scope link noprefixroute
       valid_lft forever preferred_lft forever
[root@localhost]# vi /etc/sysconfig/network-scripts/ifcfg-ens192
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=none
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens192
UUID=4536252b-62ef-41db-9a9f-9ff8983587aa
DEVICE=ens192
ONBOOT=yes
IPADDR=10.165.44.16
NETMASK=255.255.255.0
GATEWAY=10.165.44.1
DNS1=10.165.32.21
DNS2=223.5.5.5
IPV6_PRIVACY=no
[root@localhost]#systemctl restart NetworkManager
注：

ONBOOT=yes 需要注意开启，否则网卡将不会在系统启动时自动激活

部署源

交互式选择源（各大高校、大厂的都列在里面，省去了自己找源和 配置文件等繁琐的事情），更加方便。

bash <(curl -sSL https://gitee.com/SuperManito/LinuxMirrors/raw/main/ChangeMirrors.sh)

直接运行，选择对应的源即可；如果没有安装curl，自行使用 yum install curl 安装一下。

测试源

[root@localhost]# yum makecache
CentOS Linux 8.5.2111 - AppStream                10 kB/s | 4.3 kB     00:00
CentOS Linux 8.5.2111 - BaseOS                   19 kB/s | 3.9 kB     00:00
CentOS Linux 8.5.2111 - Extras                  5.3 kB/s | 1.5 kB     00:00
CentOS Linux 8.5.2111 - PowerTools               28 kB/s | 4.3 kB     00:00
Extra Packages for Enterprise Linux 8 - x86_64   17 kB/s | 4.0 kB     00:00
MySQL 8.0 Community Server                      7.0 kB/s | 3.0 kB     00:00
MySQL Connectors Community                      7.9 kB/s | 3.0 kB     00:00
MySQL Tools Community                           7.9 kB/s | 3.0 kB     00:00
Zabbix Official Repository - x86_64              13 kB/s | 3.0 kB     00:00
Zabbix Official Repository (non-supported) - x8  22 kB/s | 2.9 kB     00:00
Zabbix Official Repository (Agent2 Plugins) - x 7.1 kB/s | 2.9 kB     00:00

基本配置

关闭防火墙
systemctl stop firewalld.service
开机不启动防火墙
systemctl disable firewalld.service
关闭linux 内核安全措施
setenforce 0
关闭日后linux 内核安全启动措施
sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config
防火墙状态
systemctl status firewalld
systemctl status selinux-autorelabel
修改hostname
hostnamectl set-hostname 修改的主机名字
修改dns
echo "nameserver 223.5.5.5" > /etc/resolv.conf  # 阿里云 DNS  按需修改

安装mysql

yum remove -y mysql #卸载之前安装的mysql
下载
wget https://dev.mysql.com/get/mysql80-community-release-el8-1.noarch.rpm
如果没有安装wget 运行安装 yum install  wget
yum install mysql80-community-release-el8-1.noarch.rpm
yum module disable mysql
yum install mysql-community-server --nogpgcheck

执行完以后，修改mysql配置
[root@localhost ~]# vi /etc/my.cnf
##找到底下这一行，注释掉
default-authentication-plugin=mysql_native_password

datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock

log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

#以下配置，根据自己需求修改，我是16G内存的主机，如果监控的主机数量不多，可以适当降低一半或者更多
innodb_buffer_pool_size = 4G    
innodb_log_file_size = 512M 
innodb_log_buffer_size = 32M
innodb_file_per_table = 1
max_connections = 500
# 字符集
character-set-server = utf8mb4
collation-server = utf8mb4_general_ci 

mysql初始化
[root@localhost ~]# mysql -V
mysql  Ver 8.0.45 for Linux on x86_64 (MySQL Community Server - GPL)
[root@localhost ~]# systemctl restart mysqld
[root@localhost ~]# service mysqld status
Redirecting to /bin/systemctl status mysqld.service
● mysqld.service - MySQL Server
   Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor pres>
   Active: active (running) since Wed 2026-03-11 22:56:38 EDT; 4h 12min ago
     Docs: man:mysqld(8)
           http://dev.mysql.com/doc/refman/en/using-systemd.html
  Process: 1233 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0>
 Main PID: 3171 (mysqld)
   Status: "Server is operational"
    Tasks: 90 (limit: 101099)
   Memory: 1.9G
   CGroup: /system.slice/mysqld.service
           └─3171 /usr/sbin/mysqld

3月 11 22:56:34 localhost.localdomain systemd[1]: Starting MySQL Server...
3月 11 22:56:38 localhost.localdomain systemd[1]: Started MySQL Server.
lines 1-15/15 (END)


确认服务正常运行后，查看安装时的临时密码
具体命令：grep 'temporary password' /var/log/mysqld.log

[root@localhost ~]# grep 'temporary password' /var/log/mysqld.log
2026-03-12T01:58:06.853656Z 6 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: -0>CoSFSADAS

记录临时密码后，用临时密码登陆进去修改密码
[root@localhost ~]# mysql -u root -p


ALTER USER 'root'@'localhost' IDENTIFIED BY 'yourPassWord'; #创建一个复杂一点的密码，如果想使用简单一点的密码，方便记录，可以先修改一个复杂的密码，再修改密码复杂度。

因为MySQL 默认的密码策略会检查密码的长度、复杂度（是否包含大小写字母、数字、特殊符号）等。

修改完密码后，可以再降低密码复杂度，再修改
SET GLOBAL validate_password.length = 6;          -- 密码最小长度设为6
SET GLOBAL validate_password.mixed_case_count = 0; -- 不需要大小写混合
SET GLOBAL validate_password.number_count = 0;     -- 不需要包含数字
SET GLOBAL validate_password.special_char_count = 0; -- 不需要特殊符号

-- 重新设置密码
ALTER USER 'root'@'localhost' IDENTIFIED BY 'zabbix';

-- 刷新权限（确保生效）
FLUSH PRIVILEGES;

grant all privileges on *.* to 'root'@'%' with grant option; #授权

exit #退出mysql

初始化mysql

用刚修改的密码重新验证登陆一下，开始初始化配置

mysql -u root -p
 
mysql> create database zabbix character set utf8mb4 collate utf8mb4_bin; # 创建zabbix数据库
 
mysql> create user zabbix@localhost identified WITH sha256_password BY 'password'; #创建zabbix数据库密码password
 
mysql> grant all privileges on zabbix.* to zabbix@localhost;
 
mysql> set global log_bin_trust_function_creators = 1;
 
mysql>use mysql;
 
mysql>delete from user where user=' ';
 
mysql>flush privileges;
 
mysql> quit;

部署zabbix

rpm -Uvh https://repo.zabbix.com/zabbix/6.0/rhel/8/x86_64/zabbix-release-6.0-4.el8.noarch.rpm
dnf clean all
cd /etc/yum.repos.d


vim zabbix.repo 
# repo文件开始
[zabbix]
name=Zabbix Official Repository - $basearch
#baseurl=https://repo.zabbix.com/zabbix/6.0/rhel/8/$basearch/
baseurl=https://mirrors.tuna.tsinghua.edu.cn/zabbix/zabbix/6.0/rhel/8/x86_64/
#上面是 zabbix清华源
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-ZABBIX-A14FE591
 
[zabbix-non-supported]
name=Zabbix Official Repository (non-supported) - $basearch
#baseurl=https://repo.zabbix.com/non-supported/rhel/8/$basearch/
baseurl=https://mirrors.tuna.tsinghua.edu.cn/zabbix/non-supported/rhel/8/x86_64/
#上面是 zabbix-non-supported清华源
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-ZABBIX
gpgcheck=1
 
[zabbix-unstable]
name=Zabbix Official Repository (unstable) - $basearch
baseurl=https://repo.zabbix.com/zabbix/5.5/rhel/8/$basearch/
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-ZABBIX-A14FE591
# repo文件结束

vim zabbix-agent2-plugins.repo
# repo文件开始
[zabbix-agent2-plugins]
name=Zabbix Official Repository (Agent2 Plugins) - $basearch
#baseurl=https://repo.zabbix.com/zabbix-agent2-plugins/1/rhel/8/$basearch/
baseurl=https://mirrors.tuna.tsinghua.edu.cn/zabbix/zabbix-agent2-plugins/1/rhel/8/x86_64/
# agent2清华源
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-ZABBIX
gpgcheck=1
# repo文件结束

安装zabbix模块

	
dnf install zabbix-server-mysql zabbix-web-mysql zabbix-apache-conf zabbix-sql-scripts zabbix-selinux-policy zabbix-agent2


导入初始化数据库脚本
zcat /usr/share/zabbix-sql-scripts/mysql/server.sql.gz | mysql --default-character-set=utf8mb4 -uzabbix -p zabbix

mysql -u root -p
mysql> set global log_bin_trust_function_creators =
mysql> quit;

配置启动zabbix

vim /etc/zabbix/zabbix_server.conf # 取消注释 DBPassword= 并设置数据库密码
重启zabbix服务

启动服务
systemctl restart zabbix-server zabbix-agent2 httpd php-fpm
 
systemctl enable zabbix-server zabbix-agent2 httpd php-fpm

修复php 7.2问题并进入zabbix

启动服务后，正常可以进入web，但是web提示php低于7.3，无法进入。

# 用 PHP 下载 Composer
php -r "copy('https://getcomposer.org/composer.phar', '/usr/local/bin/composer');"

# 赋予执行权限
chmod +x /usr/local/bin/composer

# 验证 Composer
composer -V
# 进入 Zabbix 前端目录
cd /usr/share/zabbix

# 执行安装（跳过所有检查）
composer install --ignore-platform-reqs --no-dev --no-interaction

# 配置 PHP 并重启服务
cat >> /etc/php.ini << EOF
max_execution_time = 300
memory_limit = 128M
post_max_size = 16M
upload_max_filesize = 2M
max_input_time = 300
date.timezone = Asia/Shanghai
short_open_tag = On
EOF

# 重启服务
systemctl restart zabbix-server zabbix-agent2 httpd php-fpm
systemctl enable zabbix-server zabbix-agent2 httpd php-fpm

默认账号：Admin 密码：zabbix

zabbix监控运维
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