https://www.cnblogs.com/cobcmw/p/11137712.html
对于centos7.9和centos7.8需要修改操作
1、获得源代码:https://www.openssl.org/source/
wget https://www.openssl.org/source/openssl-1.1.1i.tar.gz
2、准备编译环境:
sudo yum -y install perl perl-devel gcc gcc-c++ cpan
#centos7.8以上需要,否则make test 不通过,或者不做cpan,可以忽略make test直接make install
cpan -i Text :: Template
3、编译
./config
./make
./make test
./make install
4、连接
ln -s /usr/local/lib64/libssl.so.1.1 /usr/lib64/libssl.so.1.1
ln -s /usr/local/lib64/libcrypto.so.1.1 /usr/lib64/libcrypto.so.1.1
5、检查:openssl version