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* [nncp-devel] [EN] NNCP 5.1.0 release announcement
@ 2019-11-24 15:22 Sergey Matveev
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From: Sergey Matveev @ 2019-11-24 15:22 UTC (permalink / raw)
  To: nncp-devel

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I am pleased to announce NNCP 5.1.0 release availability!

NNCP (Node to Node copy) is a collection of utilities simplifying
secure store-and-forward files and mail exchanging.

This utilities are intended to help build up small size (dozens of
nodes) ad-hoc friend-to-friend (F2F) statically routed darknet
delay-tolerant networks for fire-and-forget secure reliable files, file
requests, Internet mail and commands transmission. All packets are
integrity checked, end-to-end encrypted (E2EE), explicitly authenticated
by known participants public keys. Onion encryption is applied to
relayed packets. Each node acts both as a client and server, can use
push and poll behaviour model.

Out-of-box offline sneakernet/floppynet, dead drops, sequential and
append-only CD-ROM/tape storages, air-gapped computers support. But
online TCP daemon with full-duplex resumable data transmission exists.

------------------------ >8 ------------------------

Thanks to John Goerzen for his comments, suggestions and Debian package

------------------------ >8 ------------------------

The main improvements for that release are:

* "nncp-file" can send directories, automatically creating pax
  archive on the fly
* Free disk space is checked during outbound packets creation
* "freq", "freqminsize", "freqchunked" configuration file options
  replaced with the structure: "freq: {path: ..., minsize: ...,
  chunked: ...}"
* Added "freq.maxsize" configuration file option, forbidding of freq
  sending larger than specified size
* Ability to notify about successfully executed commands (exec) with
  "notify.exec" configuration file option

------------------------ >8 ------------------------

NNCP's home page is:

Source code and its signature for that version can be found here: (1103 KiB)

SHA256 hash: 6F5B74EC 952EAFEC 2A787463 CE1E808E CC990F03 D46F28E9 A89BAB55 5A2C2214
GPG key ID: 0x2B25868E75A1A953 NNCP releases <releases@nncpgo•org>
Fingerprint: 92C2 F0AE FE73 208E 46BF  F3DE 2B25 868E 75A1 A953

Please send questions regarding the use of NNCP, bug reports and patches
to mailing list:

Sergey Matveev (
OpenPGP: CF60 E89A 5923 1E76 E263  6422 AE1A 8109 E498 57EF

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