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Build Documentation apt-cache

Using an apt cache will greatly improve build speed when building several times in a row (e.g. when debugging, during development).

If you are interested, click on Expand on the right.

torified apt-cacher-ng

The following torified apt-cacher-ng setup only has to be applied, if you are building using onion apt sources using --connection onion.

However, if you are building behind a Tor transparent proxy such as Whonix-Gateway, you can use the simpler clearnet apt-cacher-ng instructions below instead.

Install apt-cacher-ng-, torsocks and tor.

sudo apt-get install apt-cacher-ng torsocks tor

Create folder apt-cacher-ng systemd drop-in folder /lib/systemd/system/apt-cacher-ng.service.d.

sudo mkdir -p /lib/systemd/system/apt-cacher-ng.service.d

Open /lib/systemd/system/apt-cacher-ng.service.d/50_user.conf in an editor with root rights.

If you are using a graphical Whonix or Qubes-Whonix with KDE, run.

kdesudo kwrite /lib/systemd/system/apt-cacher-ng.service.d/50_user.conf

If you are using a graphical Whonix or Qubes-Whonix with XFCE, run.

kdesudo mousepad /lib/systemd/system/apt-cacher-ng.service.d/50_user.conf

If you are using a terminal-only Whonix, run.

sudo nano /lib/systemd/system/apt-cacher-ng.service.d/50_user.conf

Add.

[Service]
ExecStart=torsocks /usr/sbin/apt-cacher-ng SocketPath=/run/apt-cacher-ng/socket -c /etc/apt-cacher-ng ForeGround=1

Save.

Reload systemd.

sudo systemctl daemon-reload

Restart apt-cacher-ng.

sudo systemctl apt-cacher-ng restart

clearnet apt-cacher-ng

sudo apt-get install apt-cacher-ng

Be sure to have a firewall, so the whole internet can not use the apt-cacher-ng service.

Prepend REPO_PROXY=http://127.0.0.1:3142 before the build command.

sudo REPO_PROXY=http://127.0.0.1:3142 ./whonix_build ...

When building inside a non-Whonix VM, an apt cache can be used on the host. In that case, adjust the IP accordingly and manually test that it is reachable. When building inside a (Whonix) VM, just install the apt cache inside the VM and point to a localhost apt cache.

From 14.0.1.0.7-developers-only and above Whonix automatically uses apt-cacher-ng.


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