<a id="pt-spec.txt-A"></a>

# Appendix A: Example Client Pluggable Transport Session

Environment variables:

TOR_PT_MANAGED_TRANSPORT_VER=1
TOR_PT_STATE_LOCATION=/var/lib/tor/pt_state/
TOR_PT_EXIT_ON_STDIN_CLOSE=1
TOR_PT_PROXY=socks5://127.0.0.1:8001
TOR_PT_CLIENT_TRANSPORTS=obfs3,obfs4

Messages the PT Proxy writes to stdin:

VERSION 1
PROXY DONE
CMETHOD obfs3 socks5 127.0.0.1:32525
CMETHOD obfs4 socks5 127.0.0.1:37347
CMETHODS DONE