全網最詳細的CentOS7裡安裝MySQL時出現No package mysql-server available錯誤的解決辦法（圖文詳解）

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直接yum install mysql的話會報錯，原因在於yum安裝庫裡沒有直接可以用的安裝包，此時需要用到MariaDB了，MariaDB是MySQL社區開發的分支，也是一個增強型的替代品。

 

 

 

安裝ossec時需要使用到mysql-server，直接安裝報錯：

[[email protected] ~]# yum install mysql-serverLoaded plugins: fastestmirror, langpacksLoading mirror speeds from cached hostfileNo package mysql-server available.Error: Nothing to do

　　原因是yum安裝庫裡沒有直接可以用的安裝包，這時候就需要用到MariaDB了，MariaDB是MySQL社區開發的分支，也是一個增強型的替代品。

 

 

1.安裝mariadb

yum -y  install MariaDB-server MariaDB MariaDB-develsystemctl start mariadbsystemctl enable mariadbmysql_secure_installationfirewall-cmd --permanent --add-service mysqlsystemctl restart firewalld.serviceiptables -L -n|grep 3306

[[email protected] Desktop]# yum -y install mariadb-server mariadb mariadb-devel

Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
Package 1:mariadb-server-5.5.47-1.el7_2.x86_64 already installed and latest version
Package 1:mariadb-5.5.47-1.el7_2.x86_64 already installed and latest version
Package 1:mariadb-devel-5.5.47-1.el7_2.x86_64 already installed and latest version
Nothing to do
[[email protected] Desktop]# systemctl start mariadb
[[email protected] Desktop]# systemctl start mariadb
[[email protected] Desktop]# systemctl enable mariadb
[[email protected] Desktop]# mysql_secure_installation
/usr/bin/mysql_secure_installation: line 379: find_mysql_client: command not found

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!

In order to log into MariaDB to secure it, we‘ll need the current
password for the root user. If you‘ve just installed MariaDB, and
you haven‘t set the root password yet, the password will be blank,
so you should just press enter here.

Enter current password for root (enter for none): 
OK, successfully used password, moving on...

Setting the root password ensures that nobody can log into the MariaDB
root user without the proper authorisation.

Set root password? [Y/n] 
New password: 
Re-enter new password: 
Password updated successfully!
Reloading privilege tables..
... Success!

By default, a MariaDB installation has an anonymous user, allowing anyone
to log into MariaDB without having to have a user account created for
them. This is intended only for testing, and to make the installation
go a bit smoother. You should remove them before moving into a
production environment.

Remove anonymous users? [Y/n] 
... Success!

Normally, root should only be allowed to connect from ‘localhost‘. This
ensures that someone cannot guess at the root password from the network.

Disallow root login remotely? [Y/n] 
... Success!

By default, MariaDB comes with a database named ‘test‘ that anyone can
access. This is also intended only for testing, and should be removed
before moving into a production environment.

Remove test database and access to it? [Y/n] 
- Dropping test database...
... Success!
- Removing privileges on test database...
... Success!

Reloading the privilege tables will ensure that all changes made so far
will take effect immediately.

Reload privilege tables now? [Y/n] 
... Success!

Cleaning up...

All done! If you‘ve completed all of the above steps, your MariaDB
installation should now be secure.

Thanks for using MariaDB!
[[email protected] Desktop]# firewall-cmd --permanent --add-service mysql
success
[[email protected] Desktop]# systemctl restart firewalld.service
[[email protected] Desktop]# iptables -L -n|grep 3306
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:3306 ctstate NEW
[[email protected] Desktop]#

 2.登入資料庫查看是否設定成功

mysql -uroot -pshow databases;

[[email protected] Desktop]# mysql -uroot -p

Enter password: 
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 13
Server version: 5.5.47-MariaDB MariaDB Server

Copyright (c) 2000, 2015, Oracle, MariaDB Corporation Ab and others.

Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.

MariaDB [(none)]> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
+--------------------+
3 rows in set (0.00 sec)

MariaDB [(none)]>

 mariadb相關命令：

systemctl start mariadb  #啟動MariaDBsystemctl stop mariadb  #停止MariaDBsystemctl restart mariadb  #重啟MariaDBsystemctl enable mariadb  #設定開機啟動

 

 

 

 

 

 

 

 

 

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全網最詳細的CentOS7裡安裝MySQL時出現No package mysql-server available錯誤的解決辦法（圖文詳解）