centos7下安裝mysql6初始化安裝密碼的方法

更新時(shí)間：2020年06月05日 08:44:55 作者：一夜聽春雨

這篇文章主要介紹了centos7下安裝mysql6初始化安裝密碼的方法，本文給大家介紹的非常詳細(xì)，對(duì)大家的學(xué)習(xí)或工作具有一定的參考借鑒價(jià)值,需要的朋友可以參考下

1.先停止數(shù)據(jù)庫(kù)服務(wù)器

service mysqld stop

2.vim /etc/my.cnf

3.配置文件添加skip-grant-tables

[root@VM_0_8_centos ~]# vim /etc/my.cnf

# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.6/en/server-configuration-defaults.html

[mysqld]
#
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
#
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
#
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
skip-grant-tables      此處?。。。。?！
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0

4.重啟數(shù)據(jù)庫(kù)

systemctl restart mysql

5.登錄數(shù)據(jù)庫(kù)

mysql -uroot -p

如果詢問(wèn)密碼，直接空密碼登錄

6.set password for root@localhost = password('123456');括號(hào)里面的密碼你自己修改。

7.mysql -uroot -p123456 登錄成功

PS：下面看下Mysql初始化root密碼和允許遠(yuǎn)程訪問(wèn)

mysql默認(rèn)root用戶沒有密碼，輸入mysql –u root 進(jìn)入mysql

1、初始化root密碼

進(jìn)入mysql數(shù)據(jù)庫(kù)

mysql>update user set password=PASSWORD(‘123456') where User='root';

2、允許mysql遠(yuǎn)程訪問(wèn),可以使用以下三種方式:

a、改表。

mysql -u root –p
mysql>use mysql;
mysql>update user set host = '%' where user = 'root';
mysql>select host, user from user;

b、授權(quán)。

例如，你想root使用123456從任何主機(jī)連接到mysql服務(wù)器。

mysql>GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;

如果你想允許用戶jack從ip為10.10.50.127的主機(jī)連接到mysql服務(wù)器，并使用654321作為密碼

mysql>GRANT ALL PRIVILEGES ON *.* TO 'jack'@'10.10.50.127' IDENTIFIED BY '654321' WITH GRANT OPTION;
mysql>FLUSH RIVILEGES

c:在安裝mysql的機(jī)器上運(yùn)行：

//進(jìn)入MySQL服務(wù)器
d:\mysql\bin\>mysql -h localhost -u root
//賦予任何主機(jī)訪問(wèn)數(shù)據(jù)的權(quán)限
mysql>GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' WITH GRANT OPTION
//使修改生效
mysql>FLUSH PRIVILEGES
//退出MySQL服務(wù)器
mysql>EXIT

總結(jié)

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