OBFSPROXY(1) | OBFSPROXY(1) |
NAME¶
obfsproxy - a pluggable transports proxySYNOPSIS¶
obfsproxy [--log-file log_file] [--log-min-severity severity] [--no-log] [--no-safe-logging] managed obfsproxy [--log-file log_file] [--log-min-severity severity] [--no-log] [--no-safe-logging] transport [-h] [--dest dest] [--ext-cookie-file ext_cookie_file] ... mode listen_addr obfsproxy --helpDESCRIPTION¶
obfsproxy is a tool that attempts to circumvent censorship, by transforming the Tor traffic between the client and the bridge. This way, censors, who usually monitor traffic between the client and the bridge, will see innocent-looking transformed traffic instead of the actual Tor traffic.OPTIONS¶
--log-file log_fileSet logfile location.
--log-min-severity severity
Set minimum logging severity (default: no logging).
severity must be one of error, warning, info,
debug.
--no-log
Disable logging.
--no-safe-logging
Disable safe (scrubbed address) logging.
-h, --help
Show help message and exit.
MANAGED TRANSPORT¶
Using managed as TRANSPORT allows Tor to start and control obfsproxy by itself. Add a line like the following to torrc to use it when acting as a bridge:ServerTransportPlugin obfs3,scramblesuit exec /usr/bin/obfsproxy managed
ClientTransportPlugin obfs3,scramblesuit exec /usr/bin/obfsproxy managed
DUMMY TRANSPORT¶
Use a protocol that simply proxies data without obfuscating them. For tests only. No extra options.B64 TRANSPORT¶
Use a protocol that encodes data with base64 before pushing them to the network. No extra options.OBFS2 TRANSPORT¶
Use the obfs2 protocol. obfs2 is known to be fingerprintable and is deprecated. See https://gitweb.torproject.org/obfsproxy.git/blob/HEAD:/doc/obfs2/protocol-spec.txt for the specification. No extra options.OBFS3 TRANSPORT¶
Use the obfs3 protocol. See https://gitweb.torproject.org/pluggable-transports/obfsproxy.git/blob/HEAD:/doc/obfs3/obfs3-protocol-spec.txt for the specification. No extra options.SCRAMBLESUIT TRANSPORT¶
Use the scramblesuit protocol. See https://gitweb.torproject.org/pluggable-transports/obfsproxy.git/blob/HEAD:/doc/scramblesuit/scramblesuit-spec.txt for the specification. --password passwordShared secret for UniformDH. In server mode, a secret
will be automatically generated if unspecified.
In order to configure a password with Tor on the server side, the following can
be added to torrc:
ServerTransportOptions scramblesuit password=WFVTIHBLAHNBXWSUD6WYTEST42LPIPRT
Bridge scramblesuit 192.0.2.42:2032 password=WFVTIHBLAHNBXWSUD6WYTEST42LPIPRT
COMMON TRANSPORT OPTIONS¶
Here’s the common synopsis: Options common for all transports: transportOne of managed, dummy, b64,
obfs2, obfs3 or scramblesuit. See above for
details.
-h
Show help message and exit.
--dest dest
Set destination address. Mandatory in all modes except
socks.
--ext-cookie-file ext_cookie_file
Configure the filesystem path where the Extended ORPort
authentication cookie is stored.
mode
Mode must be one of server (old-style
ServerTransportPlugin), ext_server (support for Extended ORPort),
client (bridge client) or socks (client using SOCKS to connect
to bridges).
listen_addr
Address on which the proxy will listen.
BUGS¶
Plenty, probably. obfsproxy is still in development. Please report them.AUTHORS¶
George Kadianakis <asn@torproject.org> Philipp Winter <phw@torproject.org> Brandon Wiley <brandon@blanu.net>09/03/2014 |