---
name: "fwknop_serv"
section: "8"
platform: "linux"
package: "fwknop-server"
version: "1.9.12-2"
release: "Debian 6.0 (Squeeze)"
platforms: ["linux"]
url: "https://new.carta.tech/fwknop_serv"
---

# fwknop\_serv(8)

Fwknop server for the TOR network.

## NAME

**fwknop\_serv** - Fwknop server for the TOR network.

## DESCRIPTION

**fwknop\_serv** is a simplisitc TCP server that is only used if SPA packets are sent over the  TOR anonymizing network (http://www.torproject.org). Use of this server results in bidirectional communication, so it technically breaks the usual  unidirectional nature of the SPA protocol; More information can be found at the following : url http://www.cipherdyne.org/fwknop/docs/talks/dc14\_fwknop\_slides.pdf.

## SEE ALSO

[**fwknop**(8)](/fwknop/8.md), [**fwknopd**(8)](/fwknopd/8.md),

## AUTHOR

Michael Rash \<mbr@cipherdyne.org\>

## DISTRIBUTION

**fwknop\_serv** is distributed under the GNU General Public License (GPL), and the latest version may be downloaded from **http://www.cipherdyne.org/**
