[root@www.woai.it ~]# service mysql stop
[root@www.woai.it ~]# mysqld_safe --skip-grant-tables &
[root@www.woai.it ~]# mysqld_safe --skip-grant-tables --skip-networking &
[root@www.woai.it ~]# mysql -p
mysql> update mysql.user set authentication_string=password("123qwe") where user="root" and Host = "localhost";
mysql> flush privileges;mysql> quit;修改完毕。重启
[root@localhost ~]# service mysql restart然后mysql就可以连接了
mysql> alter user "root"@"localhost" identified by "123";这样也可以:
mysql> set password for "root"@"localhost"=password("123");重点给大家介绍下mysql 5.7 root密码修改
[root@bright ~]# cat /root/.mysql_secret# Password set for user "root@localhost" at 2015-03-27 23:12:10:Jj+FTiqvyrF[root@bright ~]# cd /usr/local/mysql/bin/[root@bright bin]# ./mysqladmin -u root -h localhost password "123456" -pEnter password: #此行输入.mysql_secret里第二行内容
mysqladmin: [Warning] Using a password on the command line interface can be insecure.Warning: Since password will be sent to server in plain text, use ssl connection to ensure password safety.官方的方式,笔者无论是否使用--skip-grant-tables启动mysql都测试失败,亲们可以测试:
shell>mysql -uroot -p"password" #password即.mysql_secret里的密码mysql>SET PASSWORD = PASSWORD("newpasswd");
旧版本,安装后ROOT无密码,按如下操作:
方法一:
shell>service mysqld stop #停止mysql服务shell>mysqld_safe --skip-grant-tables & #以不启用grant-tables模式启动mysqlshell>mysql -uroot -p #输入命令回车进入,出现输入密码提示直接回车。mysql>use mysql;mysql>update user set password=PASSWORD("123456")where user="root"; #更改密码为 newpassordmysql>flush privileges; #更新权限mysql>quit #退出方法二:
shell>service mysqld stop #停止mysql服务shell>mysqld_safe --skip-grant-tables & #以不启用grant-tables模式启动mysqlshell>mysql -uroot -p #输入命令回车进入,出现输入密码提示直接回车。mysql > set password for root@localhost = password("mysqlroot");方法三:
shell>/path/mysqladmin -u UserName -h Host password "new_password" -p