1. 官方下载地址

https://www.openssl.org/source/

2. 依赖安装

yum install gcc libffi-devel zlib* openssl-devel

3. 编译

./config --prefix=/usr/local/openssl shared zlib
其中 --prefix=/usr/local/openssl  指定编译到那个目录下
make && make install

4. 备份

which openssl  或  find / -name openssl
 mv /usr/bin/openssl /usr/bin/openssl.1.0.1e

5. 建立软连接

ln -s /usr/local/openssl/bin/openssl /usr/bin/openssl
ln -s /usr/local/openssl/include/openssl /usr/include/openssl

6. 设定动态链接库

echo "/usr/local/openssl/lib" >> /etc/ld.so.conf
ldconfig -v

7. 验证

openssl version -a