[root@ljctest nginx-1.12.1]# cd /usr/src/
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[root@ljctest src]# ls
debug kernels nginx-1.12.1 nginx-1.12.1.tar.gz
[root@ljctest****src]#wget https://cdn.MySQL.com//Downloads/MySQL-5.7/mysql-5.7.19-1.el6.x86_64.rpm-bundle.tar
--2017-10-12 11:16:50-- https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.19-1.el6.x86_64.rpm-bundle.tar
Resolving cdn.mysql.com… 104.95.206.140
Connecting to cdn.mysql.com|104.95.206.140|:443… connected.
HTTP request sent, awaiting response… 200 OK
Length: 472432640 (451M) [application/x-tar]
Saving to: “mysql-5.7.19-1.el6.x86_64.rpm-bundle.tar”
100%[===========================================================================================
2017-10-12 11:20:48 (1.90 MB/s) - “mysql-5.7.19-1.el6.x86_64.rpm-bundle.tar” saved [472432640/47
[root@ljctest src]# file mysql-5.7.19-1.el6.x86_64.rpm-bundle.tar
mysql-5.7.19-1.el6.x86_64.rpm-bundle.tar: POSIX tar archive (GNU)
[root@ljctest src]# mkdir mysql-5.7
[root@ljctest src]# tar -xf mysql-5.7.19-1.el6.x86_64.rpm-bundle.tar -C mysql-5.7/
[root@mydb1 backup]# rpm -qa |grep mysql
qt-mysql-4.6.2-26.el6_4.x86_64
mysql-5.1.71-1.el6.x86_64
mysql-server-5.1.71-1.el6.x86_64
mysql-devel-5.1.71-1.el6.x86_64
mysql-libs-5.1.71-1.el6.x86_64
删除MyQL(RedHat6.3服务器自带的mysql-libs是mysql-libs-5.1.61-4.el6.x86_64，可能会和高版本的mysql-libs有冲突)
yum remove mysql-libs
[root@ljctest mysql-5.7]# rpm -ivh mysql-community-server-5.7.19-1.el6.x86_64.rpm
warning: mysql-community-server-5.7.19-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
error: Failed dependencies:
libnuma.so.1()(64bit) is needed by mysql-community-server-5.7.19-1.el6.x86_64
libnuma.so.1(libnuma_1.1)(64bit) is needed by mysql-community-server-5.7.19-1.el6.x86_64
libnuma.so.1(libnuma_1.2)(64bit) is needed by mysql-community-server-5.7.19-1.el6.x86_64
mysql-community-client(x86-64) >= 5.7.9 is needed by mysql-community-server-5.7.19-1.el6.x86_64
mysql-community-common(x86-64) = 5.7.19-1.el6 is needed by mysql-community-server-5.7.19-1.el6.x86_64
[root@ljctest mysql-5.7]# ll
total 461372
-rw-r--r-- 1 7155 31415 23618024 Jun 24 20:08 mysql-community-client-5.7.19-1.el6.x86_64.rpm
-rw-r--r-- 1 7155 31415 336268 Jun 24 20:08 mysql-community-common-5.7.19-1.el6.x86_64.rpm
-rw-r--r-- 1 7155 31415 3747580 Jun 24 20:08 mysql-community-devel-5.7.19-1.el6.x86_64.rpm
-rw-r--r-- 1 7155 31415 39248236 Jun 24 20:08 mysql-community-embedded-5.7.19-1.el6.x86_64.rpm
-rw-r--r-- 1 7155 31415 136599912 Jun 24 20:08 mysql-community-embedded-devel-5.7.19-1.el6.x86_64.rpm
-rw-r--r-- 1 7155 31415 2177644 Jun 24 20:09 mysql-community-libs-5.7.19-1.el6.x86_64.rpm
-rw-r--r-- 1 7155 31415 1723316 Jun 24 20:09 mysql-community-libs-compat-5.7.19-1.el6.x86_64.rpm
-rw-r--r-- 1 7155 31415 159680896 Jun 24 20:09 mysql-community-server-5.7.19-1.el6.x86_64.rpm
-rw-r--r-- 1 7155 31415 105292128 Jun 24 20:09 mysql-community-test-5.7.19-1.el6.x86_64.rpm
[root@ljctest mysql-5.7]# yum install ./*.rpm
[root@ljctest mysql-5.7]# service mysqld start
Initializing MySQL database: [ OK ]
Starting mysqld: [ OK ]
[root@ljctest mysql-5.7]#
[root@ljctest mysql-5.7]# grep 'temporary password' /var/log/mysqld.log
2017-10-12T07:20:33.419494Z 1 [Note] A temporary password is generated for root@localhost: ?OJo0_Wrpv70
[root@ljctest mysql-5.7]#
[root@ljctest mysql-5.7]# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 5
Server version: 5.7.19
Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
ALTER USER 'root'@'localhost' IDENTIFIED BY '新密码';
以上，MySQL 5.7.10安装完成。
之后还可以放开防火墙、设定自启动、增强MySQL安全设置等。
iptables -I INPUT -p tcp -m state --state NEW -m tcp --dport 3306 -j ACCEPT
/etc/init.d/iptables save
chkconfig mysqld on
mysql_secure_installation
