Post-installation Security Advice
Whonix ™ comes with many security features [archive]. Whonix ™ is Kicksecure ™ Security Hardened by default and also provides extensive Documentation including a Security Hardening Checklist. The more you know, the safer you can be.
This page provides security advice, including steps that can be applied after installation of Whonix ™ for better security.
On Whonix-Gateway ™ and Whonix-Workstation ™
Increase Virtual Machine RAM
- Whonix-Workstation ™: No changes are required for most users.
- Whonix-Gateway ™: If you have enough RAM on the host, ideally the virtual RAM setting of Whonix-Gateway ™ should be increased to
2048MB RAM. 
- If it is infeasible to increase the virtual RAM setting, this is okay too. 
- Windows 10:
Task Manager in More details view→
Click/tap on the Performance tab→
Click/tap on Memory; or
Open a command prompt→
wmic MemoryChip get /format:list
About This Mac
Open a terminal→
- To add RAM in VirtualBox the VM must first be powered down.
Change Keyboard Layout
If you are using a keyboard layout other than
qwerty (US), you might want to change your keyboard layout. Refer to the dedicated Keyboard Layout article on how to do that.
Test Keyboard Layout
Start menu →
Open ~/testfile in an editor as a regular, non-root user.
Try typing the words
qwerty. Trying typing some more to make sure you are using the desired keyboard layout.
After Whonix ™ has finished installing, immediately change the passwords for both the user
user and user
When having issues gaining root consider using dsudo.
Another option is to boot into recovery mode and change passwords there.
Regularly check for security updates and apply them in a timely fashion; see Operating System Updates.
Network Time Syncing
This is a short summary of the Network Time Synchronization wiki page which is recommended reading.
1. Timezone information.
2. reasonably accurate host clock required
A reasonably accurate host clock is required for many general security properties because an inaccurate clock can lead to
- A) Broken internet connectivity, and
- B) Time Attacks.
Therefore, at all times it is recommended to have a host clock with accuracy of up to ± 30 minutes.
3. pause / suspend / save / hibernate
Simplified, for most users, for most VMs it is strongly discouraged to use the pause / suspend / save / hibernate features. For details, in what situation this is possible see Network Time Synchronization.
This chapter is aimed at newcomers and only provides a short and simple overview for basic protection. Anonymity and platform security can be improved by following recommendations outlined in the Security Guide and Advanced Security Guide sections, along with the Time Attacks and Network Time Synchronization page.
How do I Check the Current Whonix ™ Version?
Open a terminal.
Open a terminal.
- Qubes has dynamic RAM assignment.
- This provides higher performance during upgrades and lowers the likelihood of issues [archive].
- Although non-ideal, swap-file-creator [archive] will create an encrypted swap file and the system is configured to swap as little as possible [archive].
- https://www.tenforums.com/tutorials/66809-determine-system-memory-size-speed-type-windows-10-a.html [archive]
- https://vitux.com/how-to-check-installed-ram-on-debian/ [archive]
- https://support.apple.com/en-us/HT201191 [archive]
- This command works in Red Hat, CentOS, Suse, Ubuntu, Fedora, Debian and other distributions. Alternative commands include:
cat /proc/meminfo |grep MemTotal,
- By default, Qubes VMs use the same keyboard layout as Qubes dom0.
- By default, Qubes does not require a password for superuser access.
- https://www.qubes-os.org/doc/vm-sudo/ [archive]
- Type the command in the terminal and press
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