On the university server azteca or inca (must use vpn or sassh through-pass) export http_proxy=proxy.univ-tlse3.fr:3128 export https_proxy=proxy.univ-tlse3.fr:3128 Then, ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Linuxbrew/install/master/install)" But on linux with gcc-4.4.7 only, I had also to follow the instructions on https://github.com/Linuxbrew/homebrew-core/issues/4077. It will first install glibc 2.20 install gcc-5 and others then upgrade to glibc 2.23 brew install --only-...