doc/about.texi

   1 @strong{NNCP} (Node to Node copy) is a collection of utilities
   2 simplifying secure store-and-forward files, mail and command exchanging.
   3
   4 See also this page @ref{Об утилитах, on russian}.
   5
   6 This utilities are intended to help build up small size (dozens of
   7 nodes) ad-hoc @url{https://en.wikipedia.org/wiki/Friend-to-friend,
   8 friend-to-friend} (F2F) statically routed
   9 @url{https://en.wikipedia.org/wiki/Darknet, darknet}
  10 @url{https://en.wikipedia.org/wiki/Delay-tolerant_networking, delay-tolerant}
  11 networks for fire-and-forget secure reliable files, file requests,
  12 Internet mail and commands transmission. All packets are integrity
  13 checked, @url{https://en.wikipedia.org/wiki/End-to-end_encryption,
  14 end-to-end} encrypted, explicitly authenticated by known participants
  15 public keys. @url{https://en.wikipedia.org/wiki/Onion_routing, Onion
  16 encryption} is applied to relayed packets. Each node acts both as a
  17 client and server, can use push and poll behaviour model.
  18 Also there is @ref{Multicast, multicasting} areas support.
  19
  20 Out-of-box offline @url{https://en.wikipedia.org/wiki/Sneakernet,
  21 sneakernet/floppynet}, @url{https://en.wikipedia.org/wiki/Dead_drop,
  22 dead drops}, sequential and append-only
  23 @url{https://en.wikipedia.org/wiki/CD-ROM,
  24 CD-ROM}/@url{https://en.wikipedia.org/wiki/Tape_drive, tape} storages,
  25 @url{https://en.wikipedia.org/wiki/Air_gap_(networking), air-gapped}
  26 computers support. But online TCP daemon with full-duplex resumable data
  27 transmission exists.
  28
  29 Look for possible @ref{Use cases, use cases}!
  30
  31 NNCP is @url{https://www.gnu.org/philosophy/pragmatic.html, copylefted}
  32 @url{https://www.gnu.org/philosophy/free-sw.html, free software}
  33 licenced under @url{https://www.gnu.org/licenses/gpl-3.0.html, GNU GPLv3}.
  34 It should work on all @url{https://en.wikipedia.org/wiki/POSIX,
  35 POSIX}-compatible systems. Easy @ref{Integration, integration} with existing
  36 @url{https://en.wikipedia.org/wiki/SMTP, SMTP} servers. Single
  37 @url{https://hjson.org/, Hjson} configuration file.
  38
  39 Why create yet another store-and-forward solution when UUCP, FTN and
  40 even SMTP exists? Look in @ref{Comparison, comparison} section!
  41 Simplicity, cryptographic security, sneakernet compatibility and easy
  42 integration with current SMTP servers are the reasons.