参考文章：http://www.howtoforge.com/how-to-set-up-mysql-database-replication-with-ssl-encryption-on-centos-5.4
外国人写文章真严谨，步骤详尽，讲解明了，我除了安装方式使用了源代码编译，其余部分基本都是照做，操作步骤写在这里，仅做记录。
测试环境准备：
准备两台计算机，一台master，一台slave，配置随便，反正centos只安装字符界面，不需要太好配置，当然配置越低，编译安装速度越慢，如果你找不到计算机，手头只有一台计算机，那么用virtualbox虚拟然后搭网桥一样可以模拟一台局域网计算机，为了学习技术，有条件上，没有条件也要创造条件上！
master服务器
192.168.90.216
centOS 5.3 x86_64
mysql-5.0.67
slave服务器
192.168.90.89
centOS 5.3 x86_64
mysql-5.0.67
编译安装mysql，主从服务器的操作都一样
- tar zxvf mysql-5.0.67.tgz
- cd mysql-5.0.67
- ./configure --prefix=/usr/local/mysql --sysconfdir=/etc --with-openssl --with-vio
- make
- make install
准备配置文件和启动脚本
- cp support-files/my-medium.cnf /etc/my.cnf
- cp support-files/mysql.server /etc/rc.d/init.d/mysqld
设置自动启动
- chmod 700 /etc/rc.d/init.d/mysqld
- chkconfig --add mysqld
- chkconfig --level 345 mysqld on
初始化授权表
- cd /usr/local/mysql/bin
- ./mysql_install_db --user=mysql
启动mysql
- service mysqld start
加入环境变量
- for i in *; do ln -s /usr/local/mysql/bin/$i /usr/bin/$i; done
给数据库root用户加上密码
- mysqladmin -u root password 密码
登录mysql检查
- mysql -u root -p
- Enter password:
- Welcome to the MySQL monitor. Commands end with ; or \g.
- Your MySQL connection id is 2
- Server version: 5.0.67-log Source distribution
- Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
- mysql> show variables like '%ssl%';
- +---------------+----------+
- | Variable_name | Value |
- +---------------+----------+
- | have_openssl | DISABLED |
- | have_ssl | DISABLED |
- | ssl_ca | |
- | ssl_capath | |
- | ssl_cert | |
- | ssl_cipher | |
- | ssl_key | |
- +---------------+----------+
- 7 rows in set (0.00 sec)
如果mysql输出如上所述，那么继续操作开启ssl；如果不是，重新编译安装mysql，注意生成makefile时填写参数正确。
退出mysql，编辑/etc/my.cnf
在[mysqld]章节最后，即[mysqld]和[mysqldump]之间，加入下列配置信息：
- user=mysql
- # Default to using old password format for compatibility with mysql 3.x
- # clients (those using the mysqlclient10 compatibility package).
- old_passwords=1
- ssl
- [mysqld_safe]
- log-error=/var/log/mysqld.log
- pid-file=/var/run/mysqld/mysqld.pid
保存后重新启动mysql，再次登录mysql
- mysql -u root -p
- Enter password:
- Welcome to the MySQL monitor. Commands end with ; or \g.
- Your MySQL connection id is 1
- Server version: 5.0.67-log Source distribution
- Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
- mysql> show variables like '%ssl%';
- +---------------+-------+
- | Variable_name | Value |
- +---------------+-------+
- | have_openssl | YES |
- | have_ssl | YES |
- | ssl_ca | |
- | ssl_capath | |
- | ssl_cert | |
- | ssl_cipher | |
- | ssl_key | |
- +---------------+-------+
- 7 rows in set (0.00 sec)
输出结果显示YES，现在ssl被完美启动起来了。
对主从服务器进行配置
在master服务器上为mysql的bin-log创建存放日志的目录
- mkdir /var/log/mysql
- chown mysql:mysql /var/log/mysql
在master服务器上生成ssl秘钥
- mkdir -p /etc/mysql/newcerts
- cd /etc/mysql/newcerts
- openssl genrsa 2048 > ca-key.pem
- openssl req -new -x509 -nodes -days 1000 -key ca-key.pem > ca-cert.pem
- openssl req -newkey rsa:2048 -days 1000 -nodes -keyout server-key.pem > server-req.pem
- openssl x509 -req -in server-req.pem -days 1000 -CA ca-cert.pem -CAkey ca-key.pem -set_serial 01 > server-cert.pem
- openssl req -newkey rsa:2048 -days 1000 -nodes -keyout client-key.pem > client-req.pem
- openssl x509 -req -in client-req.pem -days 1000 -CA ca-cert.pem -CAkey ca-key.pem -set_serial 01 > client-cert.pem
查看一下都生成了什么文件
- ls -alh
- total 40K
- drwxr-xr-x 2 root root 4.0K Feb 20 15:08 .
- drwxr-xr-x 3 root root 4.0K Feb 20 15:02 ..
- -rw-r--r-- 1 root root 1.6K Feb 20 15:06 ca-cert.pem
- -rw-r--r-- 1 root root 1.7K Feb 20 15:03 ca-key.pem
- -rw-r--r-- 1 root root 1.3K Feb 20 15:08 client-cert.pem
- -rw-r--r-- 1 root root 1.7K Feb 20 15:08 client-key.pem
- -rw-r--r-- 1 root root 1.1K Feb 20 15:08 client-req.pem
- -rw-r--r-- 1 root root 1.3K Feb 20 15:07 server-cert.pem
- -rw-r--r-- 1 root root 1.7K Feb 20 15:07 server-key.pem
- -rw-r--r-- 1 root root 1.1K Feb 20 15:07 server-req.pem
好了，秘钥生成了，下面需要做的是把ca-cert.pem、client-cert.pem、and client-key.pem拷贝到slave服务器上，首先我们在slave服务器上创建同样的文件夹。
- mkdir -p /etc/mysql/newcerts
现在在master服务器上把秘钥文件拷贝到slave服务器上
- scp /etc/mysql/newcerts/ca-cert.pem /etc/mysql/newcerts/client-cert.pem /etc/mysql/newcerts/client-key.pem root@192.168.0.101:/etc/mysql/newcerts
我们继续修改master服务器上的mysql配置文件，打开/etc/my.cnf
在我们刚才添加的配置代码中增加三行，如下：
- user=mysql
- # Default to using old password format for compatibility with mysql 3.x
- # clients (those using the mysqlclient10 compatibility package).
- old_passwords=1
- ssl
- ssl-ca=/etc/mysql/newcerts/ca-cert.pem
- ssl-cert=/etc/mysql/newcerts/server-cert.pem
- ssl-key=/etc/mysql/newcerts/server-key.pem
- [mysqld_safe]
- log-error=/var/log/mysqld.log
- pid-file=/var/run/mysqld/mysqld.pid
重新启动mysql
现在我们在master服务器上登录mysql，创建帐号并提供给slave服务器以便访问master服务器。
- mysql -u root -p
输入如下命令创建帐号：
- GRANT REPLICATION SLAVE ON *.* TO 'slave用户名'@'%' IDENTIFIED BY 'slave密码' REQUIRE SSL;
- FLUSH PRIVILEGES;
- quit;
我们继续修改master服务器的mysql配置文件，填写需要读写分离的数据库名。打开/etc/my.cnf，
修改我们前面填写的配置代码如下：
- user=mysql
- # Default to using old password format for compatibility with mysql 3.x
- # clients (those using the mysqlclient10 compatibility package).
- old_passwords=1
- ssl
- ssl-ca=/etc/mysql/newcerts/ca-cert.pem
- ssl-cert=/etc/mysql/newcerts/server-cert.pem
- ssl-key=/etc/mysql/newcerts/server-key.pem
- server-id = 1
- log_bin = /var/log/mysql/mysql-bin.log
- expire_logs_days = 10
- max_binlog_size = 100M
- binlog_do_db = test
- [mysqld_safe]
- log-error=/var/log/mysqld.log
- pid-file=/var/run/mysqld/mysqld.pid
重新启动master服务器上的mysql
登录mysql，把需要读写分离的数据库导出生成sql文件并提供给slave服务器用，操作期间需要锁表，等操作完毕，再解锁。
- mysql -u root -p
- USE test;
- FLUSH TABLES WITH READ LOCK;
继续查看master状态，查看mysql输出信息如下：
- mysql> show master status;
- +------------------+----------+--------------+------------------+
- | File | Position | Binlog_Do_DB | Binlog_Ignore_DB |
- +------------------+----------+--------------+------------------+
- | mysql-bin.000002 | 98 | test | |
- +------------------+----------+--------------+------------------+
- 1 row in set (0.00 sec)
连接mysql的shell别关闭，因为一旦关闭mysql就解锁了。再打开一个终端窗口，导出sql文件并拷贝到slave服务器上。
- cd /tmp
- mysqldump -u root -p密码 --opt test > test.sql
- scp test.sql root@192.168.90.89:/tmp
好了，现在我们可以把master服务器上的mysql终端关闭退出了，继续输入：
- UNLOCK TABLES;
- quit;
让我们开始配置slave服务器，打开编辑mysql的配置文件/etc/my.cnf
在[mysqld]和[mysqldump]之间的章节加入如下配置代码：
- user=mysql
- # Default to using old password format for compatibility with mysql 3.x
- # clients (those using the mysqlclient10 compatibility package).
- old_passwords=1
- ssl
- # server-id 必须唯一，尤其要与master服务器上的配置区别开来
- server-id=2
- master-connect-retry=60
- replicate-do-db=test
- [mysqld_safe]
- log-error=/var/log/mysqld.log
- pid-file=/var/run/mysqld/mysqld.pid
重新启动slave服务器上的mysql
接下来我们首先停掉slave服务器上的mysql slave服务
- mysqladmin --user=root --password=密码 stop-slave
然后我们导入sql文件
- mysql -u root -p密码 test < test.sql
现在登录slave服务器上的mysql
- mysql -u root -p
参考刚才在master服务器mysql终端输入show master status命令打印出来的结果，我们输入以下命令并执行：
- CHANGE MASTER TO MASTER_HOST='master服务器地址', MASTER_USER='slave用户名', MASTER_PASSWORD='slave密码', MASTER_LOG_FILE='打印结果的File值', MASTER_LOG_POS=打印结果的Position值, MASTER_SSL=1, MASTER_SSL_CA = '/etc/mysql/newcerts/ca-cert.pem', MASTER_SSL_CERT = '/etc/mysql/newcerts/client-cert.pem', MASTER_SSL_KEY = '/etc/mysql/newcerts/client-key.pem';
启动slave服务：
- START SLAVE;
现在来看一下slave的状态，mysql返回结果为：
- mysql> show slave status\G;
- *************************** 1. row ***************************
- Slave_IO_State: Waiting for master to send event
- Master_Host: 192.168.90.216
- Master_User: slaveusr
- Master_Port: 3306
- Connect_Retry: 60
- Master_Log_File: mysql-bin.000002
- Read_Master_Log_Pos: 98
- Relay_Log_File: slave-relay-bin.000002
- Relay_Log_Pos: 235
- Relay_Master_Log_File: mysql-bin.000002
- Slave_IO_Running: Yes
- Slave_SQL_Running: Yes
- Replicate_Do_DB: test
- Replicate_Ignore_DB:
- Replicate_Do_Table:
- Replicate_Ignore_Table:
- Replicate_Wild_Do_Table:
- Replicate_Wild_Ignore_Table:
- Last_Errno: 0
- Last_Error:
- Skip_Counter: 0
- Exec_Master_Log_Pos: 98
- Relay_Log_Space: 235
- Until_Condition: None
- Until_Log_File:
- Until_Log_Pos: 0
- Master_SSL_Allowed: Yes
- Master_SSL_CA_File: /etc/mysql/newcerts/ca-cert.pem
- Master_SSL_CA_Path:
- Master_SSL_Cert: /etc/mysql/newcerts/client-cert.pem
- Master_SSL_Cipher:
- Master_SSL_Key: /etc/mysql/newcerts/client-key.pem
- Seconds_Behind_Master: 0
- 1 row in set (0.00 sec)
好了，现在我们在master服务器上操作mysql插入一条数据，slave服务器的mysql也会更新同样的一条数据，删除亦会同步，mysql replication配置完毕。
本文转自holy2009 51CTO博客，原文链接:http://blog.51cto.com/holy2010/508744
