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THIS IS PRELIMINARY WORK AT AN EARLY STAGE. ANONYMITY IS NOT A GAME, SO PLEASE DO NOT JUST ASSUME THESE GUIDES ARE FINE AS-IS. YOU HAVE BEEN WARNED.
FreeBSD is a Unix-derived operating system focused on reliability and performance. FreeBSD maintains a large user base in the backend infrastructures of the world, not to mention in products and services such as WhatsApp, Juniper, Netflix, NetApp and Isilon. Widely used systems such as pfSense and FreeNAS are also based on FreeBSD.
FreeBSD is an ideal platform for running a Tor relay. This guide aims to provide insights for those interested in running a Tor relay on FreeBSD. It assumes a certain level of basic comfort with traditional Unix tools such as editors and starting and stopping daemons, not to mention navigating through the install process and general setup. This is not a full step-by-step instructional for those who are new to the Unix shell.
For installing applications, the FreeBSD ports system is the preferred method, as it maintains the most current versions, as opposed to the new pkg system.
There are version FreeBSD branches in regular development. It is recommended to use the most recent production release, which is the 10-branch.
This guide is based on the FreeBSD 10-branch.
Refer to the Documentation Style Guide for information about syntax in this document.
FreeBSD maintains documentation in the [FreeBSD Handbook] and in the [manual pages]. The man pages are also available directly on a FreeBSD system.
These are the basic steps to configure a Tor relay with FreeBSD. This will create an operational relay.
Install FreeBSD 10 and update to most recent -STABLE version
Populate and/or update the ports tree under /usr/ports
% svnlite update /usr/ports
Install either the stable or development version of Tor from the ports tree. The -devel or alpha version of Tor is likely the better choice.
% cd /usr/ports/security/tor && make install clean
% cd /usr/ports/security/tor-devel && make install clean
Copy the torrc.sample file to torrc
% cp /usr/local/etc/tor/torrc.sample /usr/local/etc/tor/torrc
Edit /usr/local/etc/tor/torrc appropriately. The torrc file is well-commented and instructive, but for a quicker implementation, this torrc is a good starting point.
Create the appropriate log file with the correct permissions:
% touch /var/log/tor && chown _tor:_tor /var/log/tor && chmod 600 /var/log/tor
Add “tor_enable=YES” in the /etc/rc.conf file
% echo “tor_enable=YES” >>/etc/rc.conf
Enable random IP ID numbers, and make it permanent by adding to /etc/sysctl.conf as per the post-install message:
% sysctl net.inet.ip.random_id=1
% echo “net.inet.ip.random_id=1” >>/etc/sysctl.conf
% /usr/local/etc/rc.d/tor start
Use tail(4) to confirm Tor starts correctly:
% tail -f /var/log/tor.log
Reboot to confirm that Tor starts after a reboot.
Copyright © 2017 by The Tor BSD Diversity Project (TDP). All Rights Reserved.
last updated: Sun Sep 3 14:07:32 2017 UTC