问题--connection to database 'zabbix' failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) /var/lib/mysql/mysql.sock 文件不存在
解:编辑 vim /etc/my.cnf
socket = /var/lib/mysql/mysql.sock 更改此处
重启zabbix-server , mysqld