CentOS7 二進位制安裝MySQL5 6 42

1.  檢查是否有mariadb和mysql，如果有則解除安裝掉

3. 解壓到/usr/local中改名，並建立軟鏈結

# tar xf mysql-5.6.42-linux-glibc2.12-x86_64.tar.gz  -c /usr/local/# mv /usr/local/mysql-5.6.42-linux-glibc2.12-x86_64 /usr/local/mysql-5.6.42# ln -s /usr/local/mysql-5.6.42/ /usr/local/mysql

# ll /usr/local/total 
4drwxr-xr-x.  2 root root    6 apr 11
2018
bin  drwxr-xr-x.  2 root root    6 apr 11
2018
etc  drwxr-xr-x.  2 root root    6 apr 11
2018
games
drwxr-xr-x.  2 root root    6 apr 11
2018
include
drwxr-xr-x.  2 root root    6 apr 11
2018
lib  drwxr-xr-x.  2 root root    6 apr 11
2018
lib64
drwxr-xr-x.  2 root root    6 apr 11
2018
libexec
lrwxrwxrwx   
1 root root   24 nov 29
19:40 mysql -> /usr/local/mysql-5.6.42/drwxr-xr-x  13 root root 4096 nov 29
19:39 mysql-5.6.42
drwxr-xr-x.  2 root root    6 apr 11
2018
sbin
drwxr-xr-x.  5 root root   46 apr 11
2018
share
drwxr-xr-x.  2 root root    6 apr 11
2018 src

4. 建立使用者組和使用者名稱

# groupadd mysql

# useradd -g mysql mysql -s /sbin/nologin

5. 修改配置檔案

# cp /usr/local/mysql/support-files/my-default.cnf /etc/my.cnf

# mkdir /var/lib/mysql/
# chown -r mysql.mysql /var/lib/mysql
# cat /etc/my.cnf
[mysql]
default-character-set=utf8 
[mysqld]
skip-name-resolve
port = 3306
server_id = 1
log_bin = mysql-bin
socket=/var/lib/mysql/mysql.sock
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
max_connections=200
character-set-server=utf8
default-storage-engine=innodb
lower_case_table_name=1
max_allowed_packet=16m
sql_mode=no_engine_substitution,strict_trans_tables 
[client]
socket  = /var/lib/mysql/mysql.sock

6. 進入mysql目錄初始化資料

# chown mysql.mysql -r /usr/local/mysql

# cd /usr/local/mysql/scripts/
# ./mysql_install_db  --user=mysql  --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data

7. 配置環境變數

# echo "mysql_home=/usr/local/mysql" >>/etc/profile

# echo "path=$path:$mysql_home/bin" >> /etc/profile
# source /etc/profile

8. 啟動mysql，並設定開機自啟

# cp /usr/local/mysql/support-files/mysql.server /etc/rc.d/init.d/mysqld

# chkconfig --add mysqld
# chkconfig mysqld on
# /etc/init.d/mysqld start

9. 設定資料庫登入密碼

# mysqladmin -uroot password '

123456
'

10. 登入資料庫刪除無用的帳號

# mysql -uroot -p'

123456
'mysql> delete from mysql.user where user=''
;  query ok, 
2 rows affected (0.00
sec)
mysql> delete from mysql.user where host='
::1'
;  query ok, 
1 row affected (0.00
sec)
mysql> select
user,host from mysql.user;
+------+----------------------------+
| user | host                       |
+------+----------------------------+
| root | 127.0.0.1                  |
| root | 192-168-7-77               |
| root | localhost                  |
+------+----------------------------+
3 rows in set (0.00 sec)

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