mysql 基于 ssl 的主从复制

1、创建证书中心创建证书颁发机构，首先要生成ca自己的私钥，如下：cd /etc/pki/CA(umask 077;openssl genrsa -out /etc/pki/CA/private/cakey.pem 2048)生成自签证书,由于需要输入大量用户信息（在私有的CA上创建证书要注意所有的用户信息需要一致，从国家到部门都要相同，否则会造成证书无法使用）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 3650-x509是创建自签证书是需要的参数，在创建其他证书时不能加该参数然后创建ca所需文件，如下：
cd /etc/pki/CAtouch index.txtecho 01 > serial
2、为master服务器创建证书服务器的名称必须固定，在申请证书时要输入服务器的通用名称，此通用名称必须与服务器外网申请的域名相同。创建私钥mkdir /home/mysql/cd /home/mysql(umask 077;openssl genrsa -out master.key 2048)生成证书申请文件openssl req -new -key master.key -out master.csr在证书服务器上对master的证书进行签发cd /etc/pki/CAopenssl ca -in /home/mysql/master.csr -out /home/mysql/master.crt -days 365
3、创建slave服务器证书(umask 077;openssl genrsa -out slave.key 2048) openssl req -new -key slave.key -out slave.csr将slave服务器的证书申请文件复制到证书服务器上进行签发opessl ca -in slave.csr -out slave.crt -days 356
4、修改证书权限和mysql配置文件将ca的证书cacert.pem复制到master、slave服务器的相应目录下 cd /home/mysql cp /etc/pki/CA/cacert.pem ./ chown -R mysql:mysql /home/mysql chmod 600 /home/mysql/*.key修改master服务器的/etc/my.cnf配置文件： vim /etc/my.cnf [mysqld] ssl_ca = /home/mysql/cacrt.pem ssl_cert = /home/mysql/master.crt ssl_key = /home/mysql/master.key
修改slave服务器配置vim /etc/my.cnf [client] ssl_ca = /home/mysql/cacrt.pem ssl_cert = /home/mysql/slave.crt ssl_key = /home/mysql/slave.key
5、在主服务器上创建复制用户> grant replication slave on *.* to 'repl'@‘192.168.%' identified by 'repl' require ssl;> flush privileges;
查看主服务器当前二进制位置mysql> show master status ; +————————-+————+———————+————————–+————————–+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set | +————————-+————+———————+————————–+————————–+ | mysql-bin.000007 | 1015 | | | | +————————-+————+———————+————————–+—————————+ 1 row in set (0.00 sec)
6、在从服务器上开始复制 change master to master_host=‘192.168.0.66', master_user='repl', master_password='repl', master_log_file='mysql-bin.000007', master_log_pos=1015, master_ssl=1, master_ssl_ca='/home/mysql/cacrt.pem', master_ssl_cert='/home/mysql/slave.crt', master_ssl_key='/home/mysql/slave.key'; start slave; show slave status;
7 排错导致lave_IO_Running 为connecting 的原因主要有以下 3 个方面： 网络不通
密码不对
pos不对
解决步骤：对于第一个问题，一般情况下都是可以排除的，也是最容易排除的。
在主库上修改用来复制的用户的密码。
在做chang to 的时候注意log_pos 是否跟此时主机的相同
在主机上 show master status \G ;可以查看到

8 线上实例服务器端配置如下：[ec2-user@vps1 ~]$ cat /etc/my.cnf[mysqld]datadir=/var/lib/mysqlsocket=/var/lib/mysql/mysql.sock# Disabling symbolic-links is recommended to prevent assorted security riskssymbolic-links=0# Settings user and group are ignored when systemd is used.# If you need to run mysqld under a different user or group,# customize your systemd unit file for mysqld according to the# instructions in http://fedoraproject.org/wiki/Systemdskip_name_resolve open_files_limit=8192#ssl configuressl_ca=/home/mysql/cacert.crtssl_cert=/home/mysql/mysql.crtssl_key=/home/mysql/mysql.key
log-bin=mysql-binexpire_logs_days=5server-id=1replicate-ignore-db=mysqlreplicate-ignore-db=zabbix
slow_query_log_file=/var/log/mysql/slow.loglog_queries_not_using_indexes=1long_query_time=5
innodb_file_per_table=1innodb_buffer_pool_size=64M
log_slave_updatesrelay-log=relay-binrelay-log-space-limit=512000000slave-net-timeout=360
[mysql]default_character_set=utf8
[mysqld_safe]log-error=/var/log/mysqld.logpid-file=/var/run/mysqld/mysqld.pid
[ec2-user@vps1 ~]$ ll /home/mysql/总用量 16-rw-r--r-- 1 mysql mysql 1318 6月 23 06:09 cacert.crt-rw-r--r-- 1 mysql mysql 3715 6月 23 06:05 mysql.crt-rw-r--r-- 1 mysql mysql 651 6月 23 06:03 mysql.csr-rw------- 1 mysql mysql 891 6月 23 06:02 mysql.key[ec2-user@vps1 ~]$
slave端配置如下：[ec2-user@vps2 ~]$ cat /etc/my.cnf[mysqld]datadir=/var/lib/mysqlsocket=/var/lib/mysql/mysql.sock# Disabling symbolic-links is recommended to prevent assorted security riskssymbolic-links=0# Settings user and group are ignored when systemd is used.# If you need to run mysqld under a different user or group,# customize your systemd unit file for mysqld according to the# instructions in http://fedoraproject.org/wiki/Systemdskip_name_resolve open_files_limit=8192#ssl configuressl_ca=/home/mysql/cacert.crtssl_cert=/home/mysql/mysql.crtssl_key=/home/mysql/mysql.key
log-bin=mysql-binexpire_logs_days=5server-id=2replicate-ignore-db=mysqlreplicate-ignore-db=zabbix
slow_query_log_file=/var/log/mysql/slow.loglog_queries_not_using_indexes=1long_query_time=5
innodb_file_per_table=1innodb_buffer_pool_size=64M
log_slave_updatesrelay-log=relay-binrelay-log-space-limit=512000000slave-net-timeout=360
[mysql]default_character_set=utf8
[mysqld_safe]log-error=/var/log/mysqld.logpid-file=/var/run/mysqld/mysqld.pid
[client]ssl_ca=/home/mysql/cacert.crtssl_cert=/home/mysql/mysql.crtssl_key=/home/mysql/mysql.key[ec2-user@vps2 ~]$
mysql> show slave status \G*************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: 192.168.0.66 Master_User: repl Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000001 Read_Master_Log_Pos: 259 Relay_Log_File: relay-bin.000002 Relay_Log_Pos: 253 Relay_Master_Log_File: mysql-bin.000001 Slave_IO_Running: Yes Slave_SQL_Running: Yes Replicate_Do_DB: Replicate_Ignore_DB: mysql,zabbix 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: 259 Relay_Log_Space: 403 Until_Condition: None Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: Yes Master_SSL_CA_File: /home/mysql/cacert.crt Master_SSL_CA_Path: Master_SSL_Cert: /home/mysql/mysql.crt Master_SSL_Cipher: Master_SSL_Key: /home/mysql/mysql.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)mysql>