$ wget https://www.openssl.org/source/openssl-1.1.1i.tar.gz
$ tar xvf openssl-1.1.1i.tar.gz 
$ cd openssl-1.1.1i/
$ mkdir build
$ cd build
$ ../config --prefix=/opt/openssl/1.1.1i --openssldir=/opt/openssl/1.1.1i --with-zlib-include=/opt/zlib/1.2.11/include --with-zlib-lib=/opt/zlib/1.2.11/lib shared zlib
$ make
$ make install