wget https://www.openssl.org/source/openssl-1.0.2d.tar.gz
tar zxvf openssl-1.0.2d.tar.gz  
cd openssl-1.0.2d  
./config --prefix=/usr/local/openssl  make && make install mv /usr/bin/openssl /usr/bin/openssl.OFF  
mv /usr/include/openssl /usr/include/openssl.OFF ln -s /usr/local/openssl/bin/openssl /usr/bin/openssl ln -s /usr/local/openssl/include/openssl /usr/include/openssl  
echo "/usr/local/openssl/lib">>/etc/ld.so.conf  
ldconfig -v  
openssl version -a