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Secure Distributed Network Time Synchronization

Time keeping is crucial for security, privacy, and anonymity. Sdwdate is a Tor friendly replacement for rdate and ntpdate that sets the system's clock by communicating via onion encrypted TCP with Tor onion webservers.

At randomized intervals, sdwdate connects to a variety of webservers and extracts the time stamps from http headers (RFC 2616). Using sclockadj option, time is gradually adjusted preventing bigger clock jumps that could confuse logs, servers, Tor, i2p, etc.

This package contains the sdwdate time fetcher and daemon. No installation on remote servers required. To avoid conflicts, this daemon should not be enabled together with ntp or tlsdated.

How to install sdwdate using apt-get

1. Add Whonix's Signing Key.

sudo apt-key --keyring /etc/apt/trusted.gpg.d/whonix.gpg adv --keyserver hkp://ipv4.pool.sks-keyservers.net:80 --recv-keys 916B8D99C38EAF5E8ADC7A2A8D66066A2EEACCDA

3. Add Whonix's APT repository.

echo "deb http://deb.whonix.org buster main contrib non-free" | sudo tee /etc/apt/sources.list.d/whonix.list

4. Update your package lists.

sudo apt-get update

5. Install sdwdate.

sudo apt-get install sdwdate

How to Build deb Package

Replace apparmor-profile-torbrowser with the actual name of this package with sdwdate and see instructions.

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sdwdate requires donations to stay alive!

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Secure Distributed Web Date; privacy, anonymity and Tor friendly; console time fetcher and daemon; optional graphical user interface etc. Website: https://www.whonix.org/wiki/sdwdate

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