Fixing dom0 Qubes-Whonix UpdatesProxy Settings

If you see the following warning...

WARNING: Execution of /usr/bin/apt-get prevented by /etc/uwt.d/40_qubes.conf because no torified Qubes updates proxy found.

If this warning message is transient, it can be safely ignored. Otherwise try the fix below.

Update dom0

To launch a dom0 terminal, click the Qubes App Launcher (blue/grey "Q") and then open the Terminal Emulator (Xfce Terminal).

Upgrade Qubes dom0.

sudo qubes-dom0-update

sudo qubes-dom0-update

Salt Fix

Use salt for dom0 settings setup.

sudo qubesctl state.sls qvm.anon-whonix

sudo qubesctl state.sls qvm.anon-whonix

Try if it works now.

To see if it is fixed, try running in Whonix TemplateVM:

sudo systemctl restart qubes-whonix-torified-updates-proxy-check

sudo systemctl restart qubes-whonix-torified-updates-proxy-check

Then try to update / use apt-get again.

If not fixed, try manual fix below.

Manual Fix

Please make sure Whonix-Gateway (commonly called sys-whonix) is running.

• If you are using Qubes R3.2: The NetVM of this TemplateVM should be set to Whonix-Gateway (commonly called sys-whonix).

• If you are using Qubes R4 or higher: Check your dom0 /etc/qubes-rpc/policy/qubes.UpdatesProxy settings.

At the very top of that file you should see the following.

$tag:whonix-updatevm $default allow,target=sys-whonix

$tag:whonix-updatevm $default allow,target=sys-whonix

If it is not there, add it.

If you like to see an example /etc/qubes-rpc/policy/qubes.UpdatesProxy please press on expand on the right.

/etc/qubes-rpc/policy/qubes.UpdatesProxy (raw):

## Note that policy parsing stops at the first match,
## so adding anything below "$anyvm $anyvm action" line will have no effect

## Please use a single # to start your custom comments

# Upgrade all TemplateVMs through sys-whonix.
#$type:TemplateVM $default allow,target=sys-whonix

# Upgrade Whonix TemplateVMs through sys-whonix.
$tag:whonix-updatevm $default allow,target=sys-whonix

# Deny Whonix TemplateVMs using UpdatesProxy of any other VM.
$tag:whonix-updatevm $anyvm deny

# Default rule for all TemplateVMs - direct the connection to sys-net
$type:TemplateVM $default allow,target=sys-net

$anyvm $anyvm deny

If you are using Multiple Qubes-Whonix TemplateVMs (such as if you made a clone of a Whonix TemplateVM), please press on expand on the right site.

Should have the following syntax:

Name-Of-Whonix-TemplateVM $default allow,target=Whonix-Gateway-TemplateBased-ProxyVM

Example entry for Whonix-Gateway TemplateVM:

whonix-gw-14 $default allow,target=sys-whonix

whonix-gw-14 $default allow,target=sys-whonix

Example entry for Whonix-Workstation TemplateVM:

whonix-ws-14 $default allow,target=sys-whonix

whonix-ws-14 $default allow,target=sys-whonix

To see if it is fixed, try running in Whonix TemplateVM:

sudo systemctl restart qubes-whonix-torified-updates-proxy-check

sudo systemctl restart qubes-whonix-torified-updates-proxy-check

Then try to update / use apt-get again.

Reinstall Fix

If it still does not work try to Qubes/Reinstall.

If still not fixed, ask for support in https://forums.whonix.org.

Development

• https://github.com/Whonix/qubes-whonix/blob/master/etc/uwt.d/40_qubes.conf
• https://github.com/Whonix/qubes-whonix/blob/master/usr/share/uwt/qubes_torfied_dom0.txt
• https://github.com/Whonix/qubes-whonix/blob/master/lib/systemd/system/qubes-whonix-torified-updates-proxy-check.service
• https://github.com/Whonix/qubes-whonix/blob/master/usr/lib/qubes-whonix/init/torified-updates-proxy-check
• https://github.com/QubesOS/qubes-core-admin/blob/master/qubes-rpc-policy/qubes.UpdatesProxy.policy
• https://github.com/Whonix/uwt

Footnotes

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