'''1.''' Open the Debian sources.list file using an editor with root rights. {{CodeSelect|code= sudo nano {{{filename}}} }} '''2.''' Reference the onionized Debian repositories. Cut and paste the following .onion mirrors and comment out (#) the corresponding https repositories. {{CodeSelect|code= #deb https://deb.debian.org/debian {{Stable project version based on Debian codename}} main contrib non-free deb tor+http://{{Debian_onion}}/debian {{Stable project version based on Debian codename}} main contrib non-free #deb https://deb.debian.org/debian-security {{Stable project version based on Debian codename}}-security main contrib non-free deb tor+http://{{security.debian.org_onion}} {{Stable project version based on Debian codename}}-security main contrib non-free #Optional Backports #deb https://deb.debian.org/debian {{Stable project version based on Debian codename}}-backports main contrib non-free deb tor+http://{{Debian_onion}}/debian {{Stable project version based on Debian codename}}-backports main contrib non-free }} Save and exit. '''3.''' Confirm the onionized repositories are functional. {{CodeSelect|code= sudo apt update && sudo apt full-upgrade }}