To point to the Stanford Debian Local Archive, you must configure your system to find the archive and install the Stanford archive keys.
1. Install the Stanford Debian Local Archive key package. To do this, navigate your browser to http://debian.stanford.edu/debian-stanford/pool/main/s/stanford-keyring/ and look for the file ending in ".deb". Download that file to your system and install the file by using dpkg.
2. Create a new file /etc/apt/sources.list.d/stanford.list with this content:
# The Stanford-specific Debian archive and source tree (world-accessible). deb http://debian.stanford.edu/debian-stanford stretch main non-free contrib deb-src http://debian.stanford.edu/debian-stanford stretch main non-free contrib # The Stanford restricted Debian archive and source tree. deb http://debian.stanford.edu/debian-local stretch main non-free contrib deb-src http://debian.stanford.edu/debian-local stretch main non-free contrib
3. Update your apt cache
apt-get update
