Error - Mining ZCash on VPS (with Linux, Ubuntu Desktop 16.04) with CPU

Hi, I want to mine ZCash on VPS with Ubuntu but I can not install nheqminer. There is a log from SSH console.

root@--------:/downloads# git clone https://github.com/feeleep75/nheqminer.git
Cloning into ‘nheqminer’…
fatal: unable to access ‘https://github.com/feeleep75/nheqminer.git/’: Could not resolve host: github.com

Can anyone help please?