Redhat：安装MySQL5.5

#install mysql
$ rpm -ivh MySQL-client-5.5.28-1.rhel5.x86_64.rpm --nodeps
$ rpm -ivh MySQL-server-5.5.28-1.rhel5.x86_64.rpm --nodeps
# config MySql
$ mv /usr/share/mysql/my-medium.cnf /etc/my.cnf	
#修改my.cnf，配置字符集，最大连接数，表名是否大小写敏感
#[client] 
 innodb_flush_log_at_trx_commit=0
 default-character-set=utf8
      #[mysqld]
 lower_case_table_names=1
 max_connections=1000
 character_set_server=utf8
#保存退出，启动mysql
$ service mysql restart
#登陆mysql
$ mysql -u root -p
mysql> use test_db
#授权任何机器都可以远程登陆
mysql>grant all privileges on *.* to root@"%" identified by "admin" with grant option;
mysql>flush privileges;