If your bridge is behind a firewall or NAT, make sure to open both ports.

Note that both Tor's OR port and its obfs4 port must be reachable.

To work around systemd hardening, you will also need to set NoNewPrivileges=no in /usr/lib/systemd/system/tor.service and then run systemctl daemon-reload. Sudo setcap cap_net_bind_service=+ep /usr/bin/obfs4proxy

If you decide to use a fixed obfs4 port smaller than 1024 (for example 80 or 443), you will need to give obfs4 CAP_NET_BIND_SERVICE capabilities to bind the port with a non-root user:.

This is optional.ĭon't forget to change the ORPort, ServerTransportListenAddr, ContactInfo, and Nickname options. # Pick a nickname that you like for your bridge. # Replace '' with your email address so we can contact you if # 'Ext' means 'extended', not 'external'. # Local communication port between Tor and obfs4. ServerTransportListenAddr obfs4 0.0.0.0:TODO2 # Tor and censors may be scanning the Internet for this port. # Avoid port 9001 because it's commonly associated with # externally reachable and must be different from the one specified for ORPort. # Replace 'TODO2' with an obfs4 port of your choice. ServerTransportPlugin obfs4 exec /usr/bin/obfs4proxy # censors may be scanning the Internet for this port.

Avoid port 9001 because it's commonly associated with Tor and # Replace 'TODO1' with a Tor port of your choice. Edit your Tor config file, usually located at /etc/tor/torrc and replace its content with: BridgeRelay 1 Any use of the provided files is at your own risk.įor more information on installing or building obfs4proxy from source, please refer to its official documentation.Ĥ.

Should you opted to use AUR, once makepkg must not run as root, here is how obfs4proxy can be installed on Arch Linux using an unprivileged user account with sudo permissions: $ sudo pacman -Syu gitĭISCLAIMER: AUR packages are user produced content. Sadly there's no package available on Arch Linux's official repositories to install it, so we must either build and it from source, or use the AUR (ArchLinux User Repository). We are opting here to install and use obfs4 as pluggable transport, so we are going to install obfs4proxy. To install the tor package on Arch Linux, please run: # pacman -Syu tor One of the most important things to keep your relay secure is to install security updates timely and ideally automatically so you can not forget about it.įollow the instructions to enable automatic software updates for your operating system.

Install tor browser arch linux