Centos7安裝mysql5.7社區版

##- Centos7安裝mysql5.7社區版

ps：本教程是在必定程度上參考了網絡上的資源結合實際操做總結而成，若有不當指出請大神們批評指正，謝謝！(●'◡'●)

###1.從官網下載mysql-5.7.16-1.el7.x86_64.rpm-bundle.tar： http://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.16-1.el7.x86_64.rpm-bundle.tar

###2.解壓

[root@localhost ~]# tar -xvf mysql-5.7.16-1.el7.x86_64.rpm-bundle.tar
mysql-community-libs-compat-5.7.16-1.el7.x86_64.rpm
mysql-community-devel-5.7.16-1.el7.x86_64.rpm
mysql-community-minimal-debuginfo-5.7.16-1.el7.x86_64.rpm
mysql-community-libs-5.7.16-1.el7.x86_64.rpm
mysql-community-common-5.7.16-1.el7.x86_64.rpm
mysql-community-embedded-compat-5.7.16-1.el7.x86_64.rpm
mysql-community-test-5.7.16-1.el7.x86_64.rpm
mysql-community-embedded-devel-5.7.16-1.el7.x86_64.rpm
mysql-community-server-minimal-5.7.16-1.el7.x86_64.rpm
mysql-community-server-5.7.16-1.el7.x86_64.rpm
mysql-community-client-5.7.16-1.el7.x86_64.rpm
mysql-community-embedded-5.7.16-1.el7.x86_64.rpm

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###2.安裝：

[root@localhost ~]# rpm -i mysql-community-common-5.7.16-1.el7.x86_64.rpm 
warning: mysql-community-common-5.7.16-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
	file /usr/share/mysql/czech/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/danish/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/dutch/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/english/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/estonian/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/french/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/german/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/greek/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/hungarian/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/italian/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/japanese/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/korean/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/norwegian-ny/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/norwegian/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/polish/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/portuguese/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/romanian/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/russian/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/serbian/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/slovak/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/spanish/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/swedish/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/ukrainian/errmsg.sys from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/Index.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/armscii8.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/ascii.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/cp1250.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/cp1256.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/cp1257.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/cp850.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/cp852.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/cp866.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/dec8.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/geostd8.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/greek.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/hebrew.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/hp8.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/keybcs2.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/koi8r.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/koi8u.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/latin1.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/latin2.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/latin5.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/latin7.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/macce.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/macroman.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64
	file /usr/share/mysql/charsets/swe7.xml from install of mysql-community-common-5.7.16-1.el7.x86_64 conflicts with file from package mariadb-libs-1:5.5.44-2.el7.centos.x86_64

說明安裝過程當中與mariadb-libs發生了了衝突

卸載mariadb-libs

[root@localhost ~]# yum -y remove mariadb-libs.x86_64
Existing lock /var/run/yum.pid: another copy is running as pid 4060.
Another app is currently holding the yum lock; waiting for it to exit...
  The other application is: PackageKit
    Memory : 118 M RSS (1.4 GB VSZ)
    Started: Sun Nov 20 09:57:20 2016 - 04:54 ago
    State  : Sleeping, pid: 4060

提示yum被鎖住了pid是4060

kill -9 4060

再次卸載mariadb-libs

[root@localhost ~]# yum -y remove mariadb-libs.x86_64
BDB2053 Freeing read locks for locker 0x3da: 4060/140620739848000
BDB2053 Freeing read locks for locker 0x3dc: 4060/140620739848000
Loaded plugins: fastestmirror, langpacks
Resolving Dependencies
--> Running transaction check
---> Package mariadb-libs.x86_64 1:5.5.44-2.el7.centos will be erased
--> Processing Dependency: libmysqlclient.so.18()(64bit) for package: 2:postfix-2.10.1-6.el7.x86_64
--> Processing Dependency: libmysqlclient.so.18(libmysqlclient_18)(64bit) for package: 2:postfix-2.10.1-6.el7.x86_64
--> Running transaction check
---> Package postfix.x86_64 2:2.10.1-6.el7 will be erased
--> Finished Dependency Resolution

Dependencies Resolved

===============================================================================================================================================================================================================
 Package                                           Arch                                        Version                                                    Repository                                      Size
===============================================================================================================================================================================================================
Removing:
 mariadb-libs                                      x86_64                                      1:5.5.44-2.el7.centos                                      @anaconda                                      4.4 M
Removing for dependencies:
 postfix                                           x86_64                                      2:2.10.1-6.el7                                             @anaconda                                       12 M

Transaction Summary
===============================================================================================================================================================================================================
Remove  1 Package (+1 Dependent package)

Installed size: 17 M
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Erasing    : 2:postfix-2.10.1-6.el7.x86_64                                                                                                                                                               1/2 
  Erasing    : 1:mariadb-libs-5.5.44-2.el7.centos.x86_64                                                                                                                                                   2/2 
  Verifying  : 1:mariadb-libs-5.5.44-2.el7.centos.x86_64                                                                                                                                                   1/2 
  Verifying  : 2:postfix-2.10.1-6.el7.x86_64                                                                                                                                                               2/2 

Removed:
  mariadb-libs.x86_64 1:5.5.44-2.el7.centos                                                                                                                                                                    

Dependency Removed:
  postfix.x86_64 2:2.10.1-6.el7                                                                                                                                                                                

Complete!

卸載mariadb-libs完成！

從新安裝mysql-community-common-5.7.16-1.el7.x86_64.rpm

[root@localhost ~]# rpm -i mysql-community-common-5.7.16-1.el7.x86_64.rpm 
warning: mysql-community-common-5.7.16-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY

搞定！

接下來依次安裝：

[root@localhost ~]# rpm -i mysql-community-libs-5.7.16-1.el7.x86_64.rpm
warning: mysql-community-libs-5.7.16-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
 
[root@localhost ~]# rpm -i mysql-community-client-5.7.16-1.el7.x86_64.rpm
warning: mysql-community-client-5.7.16-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY

[root@localhost ~]# rpm -i mysql-community-server-5.7.16-1.el7.x86_64.rpm
warning: mysql-community-server-5.7.16-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY

---

###3.啓動mysql：

[root@localhost ~]# service mysqld start
Redirecting to /bin/systemctl start  mysqld.service

---

###4.查看密碼： 因爲該版本安裝後，mysql會自動生成一個隨機密碼在/var/log/mysqld.log中

查看密碼

[root@localhost ~]# cat /var/log/mysqld.log|grep -n password

會看到其中有一行相似下面：

6:2016-11-20T15:12:19.209149Z 1 [Note] A temporary password is generated for root@localhost: Jj!LR+pj>2ad

其中Jj!LR+pj>2ad就是密碼了。

---

###5.登陸：

[root@localhost ~]# mysql -u root -p
Enter password:

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###6.登陸成功後用命令修改密碼

mysql> alter user 'root'@'localhost' identified by '123456';
ERROR 1819 (HY000): Your password does not satisfy the current policy requirements
//密碼強度不夠校驗沒經過

---

###7.下降密碼強度(可選)

mysql> set global validate_password_policy =0; //默認是1，即MEDIUM，因此剛開始設置的密碼必須符合長度，且必須含有數字，小寫或大寫字母，特殊字符。
mysql> set global validate_password_length=4; //指定了密碼中數據的長度

---

###8.修改密碼

mysql> alter user root@localhost identified by '123456';
Query OK, 0 rows affected (0.00 sec)

成功

---

###9.建立數據庫

mysql> create database rise;

rise是數據庫名

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###10.建立用戶遠程並賦予遠程鏈接的權限

mysql> grant all privileges on rise.* to val@'%' identified by '123456';
mysql> flush privileges;

%表示任意IP（能夠指定IP）、val是用戶名、123456是密碼

---

###11.使用nativecat遠程鏈接數據

提示：2003 -Can't connect to MySQL server on '10.0.0.18'(10038)

說明端口不通

---

###12.開通3306端口 Centos升級到7以後，發現沒法使用iptables控制Linuxs的端口，google以後發現Centos 7使用firewalld代替了原來的iptables。 下面記錄如何使用firewalld開放Linux端口：

開啓端口

[root@localhost ~]# firewall-cmd --zone=public --add-port=3306/tcp --permanent

命令含義： --zone #做用域 --add-port=3306/tcp #添加端口，格式爲：端口/通信協議 --permanent #永久生效，沒有此參數重啓後失效

重啓防火牆

[root@localhost ~]# firewall-cmd --reload

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###- OK,搞定