为了让数据传输更加安全，因此

实验环境: 两台centos 7.2，一台mysql服务器，一台客户端

为了方便实验，CA证书也在mysql服务器上

服务端操作(192.168.153.128)

1，先安装mariadb和OpenSSL

yum install mariadb-server openssl -y

2,配置证书

cd /etc/pki/CA/
touch index.txt
echo 01 > serial

(umask 066;openssl genrsa -out private/cakey.pem 4096)

openssl req -new -x509 -key private/cakey.pem -out cacert.pem -days 3600

mkdir /var/lib/mysql/ssl                #创建mysql的私钥等的目录
cd /var/lib/mysql/ssl

(umask 066;openssl genrsa -out mysql.key 2048)

openssl req -new -key mysql.key -days 365 -out mysql.csr

openssl ca -in mysql.csr -out mysql.crt -days 365

3，修改mariadb配置文件

vim /etc/my.cnf

innodb_file_per_table=ON
skip_name_resolve=ON
ssl
ssl-ca=/etc/pki/CA/cacert.pem
ssl-cert=/var/lib/mysql/ssl/mysql.crt
ssl-key=/var/lib/mysql/ssl/mysql.key

4，修改权限，否则ssl 会失败(可以通过log得知该信息)

setfacl -m u:mysql:rwx /var/lib/mysql/ssl/mysql.key

5，重启服务

6，授权一个需要ssl访问的用户

grant all on *.* to 'xixi'@'192.168.153.129' identified by 'xixi' require ssl;
flush privileges;

7，将配置文件复制到mysql客户端

scp /etc/pki/CA/cacert.pem 192.168.153.129:/etc/mysqlssl/
scp /var/lib/mysql/ssl/* 192.168.153.129:/etc/mysqlssl/

mysql客户端操作

8，测试访问

yum install mariadb -y

mysql -uxixi -pxixi -h192.168.153.128 --ssl-ca=/etc/mysqlssl/cacert.pem --ssl-cert=/etc/mysqlssl/mysql.crt --ssl-key=/etc/mysqlssl/mysql.key

10,为了方便访问

也可以将ssl信息写在配置文件中

vim /etc/my.cnf

[mysql]
ssl-ca=/etc/mysqlssl/cacert.pem
ssl-cert=/etc/mysqlssl/mysql.crt
ssl-key=/etc/mysqlssl/mysql.key