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使用下面的命令检查是否安装有mysql server
[root@localhost etc]# rpm -qa | grep mysql // 这个命令就会查看该操作系统上是否已经安装了mysql数据库
有的话，我们就通过 rpm -e 命令 或者 rpm -e --nodeps 命令来卸载掉
[root@localhost ~]# rpm -e mysql // 普通删除模式 [root@localhost ~]# rpm -e --nodeps mysql // 强力删除模式，如果使用上面命令删除时，提示有依赖的其它文件，则用该命令可以对其进行强力删除
在删除完以后我们可以通过 rpm -qa | grep mysql 命令来查看mysql是否已经卸载成功！！
官网yum repository 下载安装包
[root@localhost ~]# wget http://dev.mysql.com/get/mysql57-community-release-el6-10.noarch.rpm --2017-04-24 18:53:49-- http://dev.mysql.com/get/mysql57-community-release-el6-10.noarch.rpm resolving dev.mysql.com... 137.254.60.11 connecting to dev.mysql.com|137.254.60.11|:80... connected. http request sent, awaiting response... 301 moved permanently location: https://dev.mysql.com/get/mysql57-community-release-el6-10.noarch.rpm [following] --2017-04-24 18:53:49-- https://dev.mysql.com/get/mysql57-community-release-el6-10.noarch.rpm connecting to dev.mysql.com|137.254.60.11|:443... connected. error: certificate common name “www.mysql.com” doesn't match requested host name “dev.mysql.com”. to connect to dev.mysql.com insecurely, use ‘--no-check-certificate'
本地安装下载下来的rpm包
[root@localhost ~]# yum localinstall mysql57-community-release-el6-10.noarch.rpm loaded plugins: fastestmirror, refresh-packagekit, security setting up local package process examining mysql57-community-release-el6-10.noarch.rpm: mysql57-community-release-el6-10.noarch marking mysql57-community-release-el6-10.noarch.rpm to be installed loading mirror speeds from cached hostfile * base: mirrors.cn99.com * extras: mirrors.cn99.com * updates: mirrors.cn99.com resolving dependencies --> running transaction check ---> package mysql57-community-release.noarch 0:el6-10 will be installed --> finished dependency resolution dependencies resolved =============================================================================================================================================================================================== package arch version repository size =============================================================================================================================================================================================== installing: mysql57-community-release noarch el6-10 /mysql57-community-release-el6-10.noarch 30 k transaction summary =============================================================================================================================================================================================== install 1 package(s) total size: 30 k installed size: 30 k is this ok [y/n]: y downloading packages: running rpm_check_debug running transaction test transaction test succeeded running transaction installing : mysql57-community-release-el6-10.noarch 1/1 verifying : mysql57-community-release-el6-10.noarch 1/1 installed: mysql57-community-release.noarch 0:el6-10 complete!
查看可用的安装包
[root@localhost ~]# yum repolist enabled|grep mysql mysql-connectors-community mysql connectors community 33 mysql-tools-community mysql tools community 47 mysql57-community mysql 5.7 community server 183
安装前装gcc所有包，防止报错[errno -1] package does not match intended download
[root@localhost yum.repos.d]# yum install gcc*
安装mysql
[root@localhost yum.repos.d]# yum install -y mysql-community-server loaded plugins: fastestmirror, refresh-packagekit, security loading mirror speeds from cached hostfile * base: mirrors.cn99.com * extras: mirrors.cn99.com * updates: mirrors.cn99.com setting up install process resolving dependencies --> running transaction check ---> package mysql-community-server.x86_64 0:5.7.18-1.el6 will be installed --> processing dependency: mysql-community-common(x86-64) = 5.7.18-1.el6 for package: mysql-community-server-5.7.18-1.el6.x86_64 --> processing dependency: mysql-community-client(x86-64) >= 5.7.9 for package: mysql-community-server-5.7.18-1.el6.x86_64 --> running transaction check ---> package mysql-community-client.x86_64 0:5.7.18-1.el6 will be installed --> processing dependency: mysql-community-libs(x86-64) >= 5.7.9 for package: mysql-community-client-5.7.18-1.el6.x86_64 ---> package mysql-community-common.x86_64 0:5.7.18-1.el6 will be installed --> running transaction check ---> package mysql-community-libs.x86_64 0:5.7.18-1.el6 will be obsoleting ---> package mysql-libs.x86_64 0:5.1.71-1.el6 will be obsoleted --> processing dependency: libmysqlclient.so.16()(64bit) for package: 2:postfix-2.6.6-2.2.el6_1.x86_64 --> processing dependency: libmysqlclient.so.16(libmysqlclient_16)(64bit) for package: 2:postfix-2.6.6-2.2.el6_1.x86_64 --> running transaction check ---> package mysql-community-libs-compat.x86_64 0:5.7.18-1.el6 will be obsoleting ---> package postfix.x86_64 2:2.6.6-2.2.el6_1 will be updated ---> package postfix.x86_64 2:2.6.6-8.el6 will be an update --> finished dependency resolution dependencies resolved ============================================================================================================================= package arch version repository size ============================================================================================================================= installing: mysql-community-libs x86_64 5.7.18-1.el6 mysql57-community 2.1 m replacing mysql-libs.x86_64 5.1.71-1.el6 mysql-community-libs-compat x86_64 5.7.18-1.el6 mysql57-community 1.6 m replacing mysql-libs.x86_64 5.1.71-1.el6 mysql-community-server x86_64 5.7.18-1.el6 mysql57-community 152 m installing for dependencies: mysql-community-client x86_64 5.7.18-1.el6 mysql57-community 23 m mysql-community-common x86_64 5.7.18-1.el6 mysql57-community 328 k updating for dependencies: postfix x86_64 2:2.6.6-8.el6 base 2.0 m transaction summary ============================================================================================================================= install 5 package(s) upgrade 1 package(s) total size: 180 m total download size: 152 m downloading packages: mysql-community-server-5.7.18-1.el6.x86_64.rpm | 152 mb 01:41 warning: rpmts_hdrfromfdno: header v3 dsa/sha1 signature, key id 5072e1f5: nokey retrieving key from file:///etc/pki/rpm-gpg/rpm-gpg-key-mysql importing gpg key 0x5072e1f5: userid : mysql release engineering <mysql-build@oss.oracle.com> package: mysql57-community-release-el6-10.noarch (@/mysql57-community-release-el6-10.noarch) from : /etc/pki/rpm-gpg/rpm-gpg-key-mysql running rpm_check_debug running transaction test transaction test succeeded running transaction installing : mysql-community-common-5.7.18-1.el6.x86_64 1/8 installing : mysql-community-libs-5.7.18-1.el6.x86_64 2/8 installing : mysql-community-libs-compat-5.7.18-1.el6.x86_64 3/8 installing : mysql-community-client-5.7.18-1.el6.x86_64 4/8 installing : mysql-community-server-5.7.18-1.el6.x86_64 5/8 updating : 2:postfix-2.6.6-8.el6.x86_64 6/8 cleanup : 2:postfix-2.6.6-2.2.el6_1.x86_64 7/8 erasing : mysql-libs-5.1.71-1.el6.x86_64 8/8 verifying : 2:postfix-2.6.6-8.el6.x86_64 1/8 verifying : mysql-community-libs-compat-5.7.18-1.el6.x86_64 2/8 verifying : mysql-community-server-5.7.18-1.el6.x86_64 3/8 verifying : mysql-community-libs-5.7.18-1.el6.x86_64 4/8 verifying : mysql-community-common-5.7.18-1.el6.x86_64 5/8 verifying : mysql-community-client-5.7.18-1.el6.x86_64 6/8 verifying : 2:postfix-2.6.6-2.2.el6_1.x86_64 7/8 verifying : mysql-libs-5.1.71-1.el6.x86_64 8/8 installed: mysql-community-libs.x86_64 0:5.7.18-1.el6 mysql-community-libs-compat.x86_64 0:5.7.18-1.el6 mysql-community-server.x86_64 0:5.7.18-1.el6 dependency installed: mysql-community-client.x86_64 0:5.7.18-1.el6 mysql-community-common.x86_64 0:5.7.18-1.el6 dependency updated: postfix.x86_64 2:2.6.6-8.el6 replaced: mysql-libs.x86_64 0:5.1.71-1.el6 complete!
启动mysql
[root@localhost yum.repos.d]# service mysqld start initializing mysql database: [ ok ] installing validate password plugin: [ ok ] starting mysqld:
进入mysql安全模式
我要评论
[root@localhost yum.repos.d]# killall -term mysqld
[root@localhost yum.repos.d]# mysqld_safe --skip-grant-tables &
[1] 40422
[root@localhost yum.repos.d]# 2017-04-25t07:45:39.222061z mysqld_safe logging to '/var/log/mysqld.log'.
2017-04-25t07:45:39.246117z mysqld_safe starting mysqld daemon with databases from /var/lib/mysql
mysql -uroot -p
enter password:
welcome to the mysql monitor. commands end with ; or \g.
your mysql connection id is 3
server version: 5.7.18 mysql community server (gpl)
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> use mysql
reading table information for completion of table and column names
you can turn off this feature to get a quicker startup with -a
database changed
mysql> select * from users;
error 1146 (42s02): table 'mysql.users' doesn't exist
mysql> select * from user;
mysql> update user set authentication_string=password('mysql') where user='root';
query ok, 1 row affected, 1 warning (0.00 sec)
rows matched: 1 changed: 1 warnings: 1
mysql> quit
bye
[2]+ exit 1 mysqld_safe --skip-grant-tables
[root@localhost yum.repos.d]# service mysqld start
starting mysqld: [ ok ]
[root@localhost yum.repos.d]# mysql -uroot -p
enter password:
welcome to the mysql monitor. commands end with ; or \g.
your mysql connection id is 5
server version: 5.7.18 mysql community server (gpl)
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 -h主机地址 -u用户名 －p用户密码
1、例1：连接到本机上的mysql
找到mysql的安装目录，一般可以直接键入命令mysql -uroot -p，回车后提示你输密码，如果刚安装好mysql，超级用户root是没有密码的，故直接回车即可进入到mysql中
了，mysql的提示符是：mysql>
2、连接到远程主机上的mysql
假设远程主机的ip为：10.0.0.1，用户名为root,密码为123。则键入以下命令：
mysql -h10.0.0.1 -uroot -p123
（注：u与root可以不用加空格，其它也一样）
配置防火墙
防火墙的3306端口默认没有开启，若要远程访问，需要开启这个端口
打开/etc/sysconfig/iptables
在“-a input –m state --state new –m tcp –p tcp –dport 22 –j accept”，下添加：
-a input -m state --state new -m tcp -p tcp --dport 3306 -j accept
然后保存，并关闭该文件，在终端内运行下面的命令，刷新防火墙配置：
service iptables restart ok，一切配置完毕，你可以访问你的mysql了~
注意：增加的开放3306端口的语句一定要在icmp-host-prohibited之前
mysql -uroot -p enter password: welcome to the mysql monitor. commands end with ; or \g. your mysql connection id is 3 server version: 5.7.18 mysql community server (gpl)
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.
以上所述是小编给大家介绍的centos 6.5下 mysql-community-server. 5.7.18-1.el6安装，希望对大家有所帮助
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