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/CA

touch index.txt

echo 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/CA

openssl 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、×××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/mysql

socket=/var/lib/mysql/mysql.sock

# Disabling symbolic-links is recommended to prevent assorted security risks

symbolic-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/Systemd

skip_name_resolve

open_files_limit=8192

#ssl configure

ssl_ca=/home/mysql/cacert.crt

ssl_cert=/home/mysql/mysql.crt

ssl_key=/home/mysql/mysql.key

log-bin=mysql-bin

expire_logs_days=5

server-id=1

replicate-ignore-db=mysql

replicate-ignore-db=zabbix

slow_query_log_file=/var/log/mysql/slow.log

log_queries_not_using_indexes=1

long_query_time=5

innodb_file_per_table=1

innodb_buffer_pool_size=64M

log_slave_updates

relay-log=relay-bin

relay-log-space-limit=512000000

slave-net-timeout=360

[mysql]

default_character_set=utf8

[mysqld_safe]

log-error=/var/log/mysqld.log

pid-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/mysql

socket=/var/lib/mysql/mysql.sock

# Disabling symbolic-links is recommended to prevent assorted security risks

symbolic-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/Systemd

skip_name_resolve

open_files_limit=8192

#ssl configure

ssl_ca=/home/mysql/cacert.crt

ssl_cert=/home/mysql/mysql.crt

ssl_key=/home/mysql/mysql.key

log-bin=mysql-bin

expire_logs_days=5

server-id=2

replicate-ignore-db=mysql

replicate-ignore-db=zabbix

slow_query_log_file=/var/log/mysql/slow.log

log_queries_not_using_indexes=1

long_query_time=5

innodb_file_per_table=1

innodb_buffer_pool_size=64M

log_slave_updates

relay-log=relay-bin

relay-log-space-limit=512000000

slave-net-timeout=360

[mysql]

default_character_set=utf8

[mysqld_safe]

log-error=/var/log/mysqld.log

pid-file=/var/run/mysqld/mysqld.pid

[client]

ssl_ca=/home/mysql/cacert.crt

ssl_cert=/home/mysql/mysql.crt

ssl_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: 0

Master_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: 1

1 row in set (0.00 sec)

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