安装 Zabbix 前端包，提示cannot find a valid baseurl for repo：centos-sclo-rh/x86 64
安装zabbix前端包
# yum install zabbix-web-mysql-scl zabbix-apache-conf-scl
解决办法：
原因是：CentOS7的SCL源在2024年6月30日停止维护了。
1.将之前的源进行备份
cd /etc/yum.repos.d/
mv CentOS-SCLo-scl.repo CentOS-SCLo-scl.repo.bak
mv CentOS-SCLo-scl-rh.repo CentOS-SCLo-scl-rh.repo.bak2.创建一个新的文件
vim CentOS-SCLo-rh.repo
写入下面信息
[centos-sclo-rh]
name=CentOS-7 - SCLo rh
baseurl=https://mirrors.aliyun.com/centos/7/sclo/x86_64/rh/
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-SIG-SCLo
3.然后清理缓存，生成新的缓存，重新下载安装zabbix的前端包即可。
yum clean all
yum makecache启动zabbix-server报错
[root@localhost ~]# systemctl restart zabbix-server zabbix-agent httpd rh-php72-php-fpm
Job for zabbix-server.service failed. See "systemctl status zabbix-server.service" and "journalctl -xe" for details.查看状态
查看日志找到问题
解决办法：
mysql> use mysql;
mysql> select user,host,plugin,authentication_string from user;
+------------------+-----------+-----------------------+------------------------------------------------------------------------+
| user | host | plugin | authentication_string |
+------------------+-----------+-----------------------+------------------------------------------------------------------------+
| mysql.infoschema | localhost | caching_sha2_password | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED |
| mysql.session | localhost | caching_sha2_password | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED |
| mysql.sys | localhost | caching_sha2_password | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED |
| root | localhost | caching_sha2_password | $A$005$IIAg]pS0qSl?MX8 MR6PV3wPTeb2KWmw0nAS2chotfYlSM4Th30lSQKvGQB |
| zabbix | localhost | caching_sha2_password | $A$005$*JV0Ai0&ufL?<oI,UySKFiS/jjZRXR3YQA7H6TBcrduPFUPHWe/IEkV8Rjp4 |
+------------------+-----------+-----------------------+------------------------------------------------------------------------+
5 rows in set (0.00 sec)
修改my.cnf或my.ini配置文件
[mysqld]
mysql_native_password=ON #添加此行
之后重启MySQL服务
systemctl restart mysqld 
mysql> use mysql;
mysql> select user,host,plugin from mysql.user;
+------------------+-----------+-----------------------+
| user | host | plugin |
+------------------+-----------+-----------------------+
| mysql.infoschema | localhost | caching_sha2_password |
| mysql.session | localhost | caching_sha2_password |
| mysql.sys | localhost | caching_sha2_password |
| root | localhost | mysql_native_password |
| zabbix | localhost | caching_sha2_password |
+------------------+-----------+-----------------------+
修改密码认证
mysql> ALTER USER 'zabbix'@'localhost' IDENTIFIED WITH mysql_native_password BY 'Aa@123456';
Query OK, 0 rows affected (0.00 sec)
刷新权限
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.01 sec)
mysql> select user,host,plugin from mysql.user;
+------------------+-----------+-----------------------+
| user | host | plugin |
+------------------+-----------+-----------------------+
| mysql.infoschema | localhost | caching_sha2_password |
| mysql.session | localhost | caching_sha2_password |
| mysql.sys | localhost | caching_sha2_password |
| root | localhost | mysql_native_password |
| zabbix | localhost | mysql_native_password |
+------------------+-----------+-----------------------+
5 rows in set (0.00 sec)
[root@localhost etc]# systemctl restart zabbix-server
