什么是mysql基于ssl的主从复制

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当mysql/mariadb跨越互联网进行复制时别人可以窃取到mysql/mariadb的复制信息, 这些信息是明文的, 因此存在不安全性, 这里通过ssl对复制的信息进行加密

1. 创建证书中心

在主云服务器上创建证书中心

cd /etc/pki/CA生成私钥(umask 077;openssl genrsa -out private/cakey.pem 2048)生成自签名证书openssl req -new -x509 -key /etc/pki/CA/private/cakey.pem -out /etc/pki/CA/cacert.pem -days 7300创建证书编号mkdir certs crl newcertstouch index.txtecho 00 > serial

2. 为主云服务器创建证书

云服务器的名称必须固定, 在申请证书时要输入云服务器名称, 这书和云服务器名称对应;

创建私钥mkdir /usr/lcoal/mysql/sslcd /usr/local/mysql/ssl(umask 077;openssl genrsa -out /etc/mysql/ssl/master.key 2048)生成证书申请openssl req -new -key master.key -out master.csr在证书云服务器上对master的证书进行签发openssl ca -in master.csr -out master.crt -days 365

3. 创建从云服务器证书

(umask 077;openssl genrsa -out /etc/mysql/ssl/slave.key 2048)openssl req -new -key slave.key -out slave.csr将从云服务器的证书申请文件复制到证书云服务器上进行签发openssl ca -in slave.csr -out slave.crt -days 365

4. ×××权限和mysql配置文件

将证书的公钥cacert.pem复制到主从云服务器的目录下cd /etc/mysql/sslcp /etc/pki/CA/cacert.pem ./chown -R mysql.mysql master.crt master.key cacert.pemchmod 600 master.crt master.key cacert.pemvim /etc/my.cnflog-bin=master-logserver-id=1skip_name_resolve = ONinnodb_file_per_table = ONsslssl_ca      = /etc/mysql/ssl/cacert.pemssl_cert    = /etc/mysql/ssl/master.crtssl_key     = /etc/mysql/ssl/master.key修改从云服务器配置 cd /etc/mysql/sslcp /etc/pki/CA/cacert.pem ./chown -R mysql.mysql slave.crt slave.key cacert.pemchmod 600 slave.crt slave.key cacert.pemvim /etc/my.cnfrelay-log=relay-logserver-id=2skip_name_resolve = ONinnodb_file_per_table = ONsslssl_ca      = /etc/mysql/ssl/cacert.pemssl_cert    = /etc/mysql/ssl/slave.crtssl_key     = /etc/mysql/ssl/slave.key

5. 在主服务上创建复制用户

MariaDB [(none)]> GTANT REPLICATION SLAVE,REPLICATION CLIENT ON *.* TO 'repluser'@'10.1.52.%' IDENTIFIED BY 'replpass' REQUIRE SSL;MariaDB [(none)]> FLUSH PRIVILEGES;查看主云服务器当前二进制位置MariaDB [(none)]> SHOW MASTER STATUS;+-------------------+----------+--------------+------------------+| File              | Position | Binlog_Do_DB | Binlog_Ignore_DB |+-------------------+----------+--------------+------------------+| master-log.000005 |     7918 |              |                  |+-------------------+----------+--------------+------------------+1 row in set (0.00 sec)

6. 在从云服务器上开始复制

MariaDB [(none)]> CHANGE MASTER TO    -> MASTER_HOST='10.1.52.11',    -> MASTER_USER='repluser',    -> MASTER_PASSWORD='replpass',    -> MASTER_LOG_FILE='master-log.000001',    -> MASTER_LOG_POS=495,    -> MASTER_SSL=1,    -> MASTER_SSL_CA='/etc/mysql/ssl/cacert.pem',    -> MASTER_SSL_CERT='/etc/mysql/ssl/slave.crt',    -> MASTER_SSL_KEY='/etc/mysql/ssl/slave.key';MariaDB [(none)]> START SLAVE;

7. 查看从云服务器的状态

MariaDB [(none)]> SHOW SLAVE STATUS\G*************************** 1. row ***************************               Slave_IO_State: Waiting for master to send event                  Master_Host: 10.1.52.11                  Master_User: repluser                  Master_Port: 3306                Connect_Retry: 60              Master_Log_File: master-log.000005          Read_Master_Log_Pos: 7918               Relay_Log_File: relay-log.000002                Relay_Log_Pos: 7940        Relay_Master_Log_File: master-log.000005             Slave_IO_Running: Yes            Slave_SQL_Running: Yes              Replicate_Do_DB:          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: 7918              Relay_Log_Space: 8228              Until_Condition: None               Until_Log_File:                Until_Log_Pos: 0           Master_SSL_Allowed: Yes           Master_SSL_CA_File: /etc/mysql/ssl/cacert.pem           Master_SSL_CA_Path:              Master_SSL_Cert: /etc/mysql/ssl/slave.crt            Master_SSL_Cipher:               Master_SSL_Key: /etc/mysql/ssl/slave.key        Seconds_Behind_Master: 0Master_SSL_Verify_Server_Cert: No                Last_IO_Errno: 0                Last_IO_Error:               Last_SQL_Errno: 0               Last_SQL_Error:  Replicate_Ignore_Server_Ids:             Master_Server_Id: 11 row in set (0.00 sec)

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