linux install openssl

If the openssl version is incorrect, please install the corresponding version OPENSSL,
  cd openssl-1.0.2/
./config --prefix=/opt/robustlink/openssl/ssl
make && make install
create a soft link
ln -s /opt/robustlink/ openssl/ssl/bin/openssl /usr/bin/openssl
ln -s /opt/robustlink/openssl/ssl/include/openssl /usr/include/openssl
and check the corresponding version openssl version -a

If it is confirmed that openssl is installed successfully and the version The check is also correct, but it still prompts that the version is too low, please delete the two soft links /usr/bin/openssl /usr/include/openssl

If relevant path permissions are not allowed, please chown it