ubuntu 20.04 install openssl code example

Example: install openssl 1.0 ubuntu 20.04

wget https://www.openssl.org/source/old/1.1.0/openssl-1.1.0g.tar.gz
tar xzvf openssl-1.0.2l.tar.gz
cd openssl-1.0.2l
./config
make
sudo make install

openssl version -a