Whonix-Workstation Firewall
From Whonix
How to open a Port in Whonix-Workstation ™ Firewall[edit]
Modify Whonix-Workstation ™ User Firewall Settings
Note: If no changes have yet been made to Whonix Firewall Settings, then the Whonix User Firewall Settings File /etc/whonix_firewall.d/50_user.conf appears empty (because it does not exist). This is expected.
If using Qubes-Whonix ™, complete these steps.
In Whonix-Workstation ™ AppVM. Make sure folder /usr/local/etc/whonix_firewall.d exists.
sudo mkdir -p /usr/local/etc/whonix_firewall.d
Qubes App Launcher (blue/grey "Q") → Whonix-Workstation ™ AppVM (commonly called anon-whonix) → Whonix User Firewall Settings
If using a graphical Whonix-Workstation ™, complete these steps.
Start Menu → Applications → System → User Firewall Settings
If using a terminal-only Whonix-Workstation ™, complete these steps.
Open /usr/local/etc/whonix_firewall.d/50_user.conf with root rights.
sudoedit /usr/local/etc/whonix_firewall.d/50_user.conf
For more help, press on Expand on the right.
Note: This is for informational purposes only! Do not edit /etc/whonix_firewall.d/30_whonix_workstation_default.conf.
The Whonix Global Firewall Settings File /etc/whonix_firewall.d/30_whonix_workstation_default.conf contains default settings and explanatory comments about their purpose. By default, the file is opened read-only and is not meant to be directly edited. Below, it is recommended to open the file without root rights. The file contains an explanatory comment on how to change firewall settings.
## Please use "/etc/whonix_firewall.d/50_user.conf" for your custom configuration, ## which will override the defaults found here. When Whonix is updated, this ## file may be overwritten.
See also Whonix modular flexible .d style configuration folders.
To view the file, follow these instructions.
If using Qubes-Whonix ™, complete these steps.
Qubes App Launcher (blue/grey "Q") → Template: whonix-ws-15 → Whonix Global Firewall Settings
If using a graphical Whonix-Workstation ™, complete these steps.
Start Menu → Applications → Settings → Global Firewall Settings
If using a terminal-only Whonix-Workstation ™, complete these steps.
In Whonix-Workstation ™, open the whonix_firewall configuration file in an editor.
nano /etc/whonix_firewall.d/30_whonix_workstation_default.conf
Add. Replace 80 with the actual port you would like to open.
EXTERNAL_OPEN_PORTS+=" 80 "
Save.
Reload Whonix-Workstation ™ Firewall.
If you are using Qubes-Whonix ™, complete the following steps.
Qubes App Launcher (blue/grey "Q") → Whonix-Workstation ™ AppVM (commonly named anon-whonix) → Reload Whonix Firewall
If you are using a graphical Whonix-Workstation ™, complete the following steps.
Start Menu → Applications → System → Reload Whonix Firewall
If you are using a terminal-only Whonix-Workstation ™, run.
sudo whonix_firewall
How to open All Ports in Whonix-Workstation ™ Firewall[edit]
This is usually not required and should be avoided.
Modify Whonix-Workstation ™ User Firewall Settings
Note: If no changes have yet been made to Whonix Firewall Settings, then the Whonix User Firewall Settings File /etc/whonix_firewall.d/50_user.conf appears empty (because it does not exist). This is expected.
If using Qubes-Whonix ™, complete these steps.
In Whonix-Workstation ™ AppVM. Make sure folder /usr/local/etc/whonix_firewall.d exists.
sudo mkdir -p /usr/local/etc/whonix_firewall.d
Qubes App Launcher (blue/grey "Q") → Whonix-Workstation ™ AppVM (commonly called anon-whonix) → Whonix User Firewall Settings
If using a graphical Whonix-Workstation ™, complete these steps.
Start Menu → Applications → System → User Firewall Settings
If using a terminal-only Whonix-Workstation ™, complete these steps.
Open /usr/local/etc/whonix_firewall.d/50_user.conf with root rights.
sudoedit /usr/local/etc/whonix_firewall.d/50_user.conf
For more help, press on Expand on the right.
Note: This is for informational purposes only! Do not edit /etc/whonix_firewall.d/30_whonix_workstation_default.conf.
The Whonix Global Firewall Settings File /etc/whonix_firewall.d/30_whonix_workstation_default.conf contains default settings and explanatory comments about their purpose. By default, the file is opened read-only and is not meant to be directly edited. Below, it is recommended to open the file without root rights. The file contains an explanatory comment on how to change firewall settings.
## Please use "/etc/whonix_firewall.d/50_user.conf" for your custom configuration, ## which will override the defaults found here. When Whonix is updated, this ## file may be overwritten.
See also Whonix modular flexible .d style configuration folders.
To view the file, follow these instructions.
If using Qubes-Whonix ™, complete these steps.
Qubes App Launcher (blue/grey "Q") → Template: whonix-ws-15 → Whonix Global Firewall Settings
If using a graphical Whonix-Workstation ™, complete these steps.
Start Menu → Applications → Settings → Global Firewall Settings
If using a terminal-only Whonix-Workstation ™, complete these steps.
In Whonix-Workstation ™, open the whonix_firewall configuration file in an editor.
nano /etc/whonix_firewall.d/30_whonix_workstation_default.conf
Add. Replace 80 with the actual port you would like to open.
EXTERNAL_OPEN_ALL=true
Save.
Reload Whonix-Workstation ™ Firewall.
If you are using Qubes-Whonix ™, complete the following steps.
Qubes App Launcher (blue/grey "Q") → Whonix-Workstation ™ AppVM (commonly named anon-whonix) → Reload Whonix Firewall
If you are using a graphical Whonix-Workstation ™, complete the following steps.
Start Menu → Applications → System → Reload Whonix Firewall
If you are using a terminal-only Whonix-Workstation ™, run.
sudo whonix_firewall
Disable Whonix-Workstation ™ Firewall Until Reboot[edit]
Inside Whonix-Workstation ™.
See Dev/Firewall_Unload.
Permanently Disable Whonix-Workstation ™ Firewall[edit]
Inside Whonix-Workstation ™.
sudo systemctl mask whonix-firewall
No firewall rules will load after rebooting.
ping[edit]
Ping commands should NOT work for external addresses from your Whonix-Workstation ™; ICMP traffic [3] is not proxied, and filtered by Whonix ™ Firewall (/usr/bin/whonix_firewall) because Tor does not support UDP. For example, ping google.com will not work. To make ping work, see chapter Allow UDP.
When SUID Disabler and Permission Hardener gets enabled (not enabled by default at time of writing but will be enabled in by default in future), the CAP_NET_RAW capability will be removed from ping to reduce attack surface since it wold not work anyway. [4] When that will happen, to re-enable ping this, chapter Whitelist Specific Capability Binaries.
Forum discussion:
https://forums.whonix.org/t/ping-operation-permitted/11056/ [archive]
Allow UDP[edit]
The Tor software does not yet support UDP, [5] although Tor provides a DnsPort.
If UDP is urgently required in Whonix ™, a limited workaround is provided. For the most secure method, see Tunnel UDP over Tor.
To allow allow UDP, follow the following steps.
Modify Whonix-Workstation ™ User Firewall Settings
Note: If no changes have yet been made to Whonix Firewall Settings, then the Whonix User Firewall Settings File /etc/whonix_firewall.d/50_user.conf appears empty (because it does not exist). This is expected.
If using Qubes-Whonix ™, complete these steps.
In Whonix-Workstation ™ AppVM. Make sure folder /usr/local/etc/whonix_firewall.d exists.
sudo mkdir -p /usr/local/etc/whonix_firewall.d
Qubes App Launcher (blue/grey "Q") → Whonix-Workstation ™ AppVM (commonly called anon-whonix) → Whonix User Firewall Settings
If using a graphical Whonix-Workstation ™, complete these steps.
Start Menu → Applications → System → User Firewall Settings
If using a terminal-only Whonix-Workstation ™, complete these steps.
Open /usr/local/etc/whonix_firewall.d/50_user.conf with root rights.
sudoedit /usr/local/etc/whonix_firewall.d/50_user.conf
For more help, press on Expand on the right.
Note: This is for informational purposes only! Do not edit /etc/whonix_firewall.d/30_whonix_workstation_default.conf.
The Whonix Global Firewall Settings File /etc/whonix_firewall.d/30_whonix_workstation_default.conf contains default settings and explanatory comments about their purpose. By default, the file is opened read-only and is not meant to be directly edited. Below, it is recommended to open the file without root rights. The file contains an explanatory comment on how to change firewall settings.
## Please use "/etc/whonix_firewall.d/50_user.conf" for your custom configuration, ## which will override the defaults found here. When Whonix is updated, this ## file may be overwritten.
See also Whonix modular flexible .d style configuration folders.
To view the file, follow these instructions.
If using Qubes-Whonix ™, complete these steps.
Qubes App Launcher (blue/grey "Q") → Template: whonix-ws-15 → Whonix Global Firewall Settings
If using a graphical Whonix-Workstation ™, complete these steps.
Start Menu → Applications → Settings → Global Firewall Settings
If using a terminal-only Whonix-Workstation ™, complete these steps.
In Whonix-Workstation ™, open the whonix_firewall configuration file in an editor.
nano /etc/whonix_firewall.d/30_whonix_workstation_default.conf
Add. [6]
firewall_allow_udp=true
Save.
Reload Whonix-Workstation ™ Firewall.
If you are using Qubes-Whonix ™, complete the following steps.
Qubes App Launcher (blue/grey "Q") → Whonix-Workstation ™ AppVM (commonly named anon-whonix) → Reload Whonix Firewall
If you are using a graphical Whonix-Workstation ™, complete the following steps.
Start Menu → Applications → System → Reload Whonix Firewall
If you are using a terminal-only Whonix-Workstation ™, run.
sudo whonix_firewall
Done, Whonix-Workstation ™ firewall does now permit UDP.
Purpose[edit]
https://github.com/Whonix/whonix-firewall/blob/master/man/whonix_firewall.8.ronn#whonix-workstation-firewall-design-notes [archive]
See Also[edit]
- Whonix-Workstation ™ is Firewalled
- Ports
- Whonix ™ Configuration Drop-In Folders
- https://github.com/Whonix/whonix-firewall/blob/master/etc/whonix_firewall.d/30_whonix_workstation_default.conf [archive]
- https://github.com/Whonix/whonix-firewall/blob/master/usr/bin/whonix-workstation-firewall [archive]
- https://github.com/Whonix/whonix-firewall [archive]
Footnotes[edit]
- ↑ https://github.com/Whonix/whonix-ws-firewall/blob/Whonix13/man/whonix_firewall.8.ronn [archive]
- ↑
man whonix_firewall
- ↑ http://en.wikipedia.org/wiki/Internet_Control_Message_Protocol [archive]
- ↑ https://github.com/Whonix/anon-apps-config/blob/master/etc/permission-hardening.d/30_ping.conf [archive]
- ↑ https://trac.torproject.org/projects/tor/ticket/7830 [archive]
- ↑
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