- MariaDB [(none)]>show global variables like 'port'; #查看端口號
- MariaDB [(none)]>status; #查看mariadb的基本信息
- [root@localhost ~]# mysql -u root -p123456 -P33077 -h192.168.9.85 #從庫連接主庫-p密碼-P端口-h地址IP
- 修改MariaDB端口
- mysql更改端口
修改/etc/my.cnf
添加port=3308
修改後如下 -
- [mysqld]
- datadir=/var/lib/mysql
- socket=/var/lib/mysql/mysql.sock
- port=3308
- user=mysql
- # Disabling symbolic-links is recommended to prevent assorted security risks
- symbolic-links=0
- default-character-set=utf8
- [mysqld_safe]
- log-error=/var/log/mysqld.log
- pid-file=/var/run/mysqld/mysqld.pid
如果你開啓了selinux,mysql會無法啓動,你會在日誌中看到以下錯誤
[ERROR] Can't start server: Bind on TCP/IP port: Permission denied
[ERROR] Do you already have another mysqld server running on port: 3308那麼,你需要關掉selinux,不想重啓服務器,而關掉selinux,使用以下命令
/usr/sbin/setenforce 0
修改linux下mysql端口時候報錯:Can't start server: Bind on TCP/IP port: Permission denied
需要修改: vim /etc/selinux/config
SELINUX=disabled
然後重啓服務器即可
在修改端口之後設置主從複製,則在設置主從的時候添加端口,否則會選擇默認端口導致2003錯誤
CHANGE MASTER TO MASTER_HOST='192.168.0.93',MASTER_PORT=3366,MASTER_USER='root', MASTER_PASSWORD='4008008888', MASTER_LOG_FILE='master-bin.000001', MASTER_LOG_POS= 401;