1、下载 openssl
openssl官方下载地址：https://www.openssl.org/source/
[root@localhost ~]# wget https://github.com/openssl/openssl/archive/OpenSSL_1_1_1d.tar.gz
2、编译安装
[root@localhost ~]# ./config --prefix=/usr/local/openssl // 指定安装路径
[root@localhost ~]# make && make install
3、替换当前系统的旧版本
[root@localhost ~]# mv /usr/bin/openssl /usr/bin/openssl.old
[root@localhost ~]# mv /usr/lib64/openssl /usr/lib64/openssl.old
[root@localhost ~]# mv /usr/lib64/libssl.so /usr/lib64/libssl.so.old
[root@localhost ~]# ln -s /usr/local/openssl/bin/openssl /usr/bin/openssl
[root@localhost ~]# ln -s /usr/local/openssl/include/openssl /usr/include/openssl
[root@localhost ~]# ln -s /usr/local/openssl/lib/libssl.so /usr/lib64/libssl.so
[root@localhost ~]# echo "/usr/local/openssl/lib" >> /etc/ld.so.conf
[root@localhost ~]# ldconfig -v // 建立动态链接
[root@localhost ~]# openssl version #查看升级后的版本