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docker: tor obfs4 bridge 🐳

Tor bridge running obfs4 obfuscation protocol via lyrebird on Alpine

Alpine port of https://dip.torproject.org/torproject/anti-censorship/docker-obfs4-bridge

usage

$OR_PORT and $PT_PORT can be random but must match docker

(see /proc/sys/net/ipv4/ip_local_port_range for range)

docker run --name tor_obfs4_bridge \
    -e OR_PORT=42218 -p 42218:42218 \
    -e PT_PORT=51804 -p 51804:51804 \
    -e CONTACT_INFO=admin@optional.com \
    -e NICKNAME=nickname \
    fphammerle/tor-obfs4-bridge

add -v tor_obfs4_bridge_data:/var/lib/tor to keep server's identity key when restarting the container

additionally add --read-only --tmpfs /tmp:rw,size=4k to make the container's root filesystem read only

verify status of bridge at https://metrics.torproject.org/rs.html

further reading

https://community.torproject.org/relay/setup/bridge/