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- A Japanese translation of this document and of the OpenSSH FAQ is
- available at
- Thanks to HARUYAMA Seigo <>
This is the port of OpenBSD's excellent OpenSSH[0] to Linux and other
OpenSSH is based on the last free version of Tatu Ylonen's sample
implementation with all patent-encumbered algorithms removed (to
external libraries), all known security bugs fixed, new features
reintroduced and many other clean-ups. OpenSSH has been created by
Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos, Theo de Raadt,
and Dug Song. It has a homepage at
This port consists of the re-introduction of autoconf support, PAM
support (for Linux and Solaris), EGD[1]/PRNGD[2] support and replacements
for OpenBSD library functions that are (regrettably) absent from other
unices. This port has been best tested on Linux, Solaris, HP-UX, NetBSD
and Irix. Support for AIX, SCO, NeXT and other Unices is underway.
This version actively tracks changes in the OpenBSD CVS repository.
The PAM support is now more functional than the popular packages of
commercial ssh-1.2.x. It checks "account" and "session" modules for
all logins, not just when using password authentication.
OpenSSH depends on Zlib[3], OpenSSL[4] and optionally PAM[5].
There is now several mailing lists for this port of OpenSSH. Please
refer to for details on how to join.
Please send bug reports and patches to the mailing list The list is open to posting by
unsubscribed users.
If you are a citizen of an USA-embargoed country to which export of
cryptographic products is restricted, then please refrain from sending
crypto-related code or patches to the list. We cannot accept them.
Other code contribution are accepted, but please follow the OpenBSD
style guidelines[6].
Please refer to the INSTALL document for information on how to install
OpenSSH on your system. There are a number of differences between this
port of OpenSSH and F-Secure SSH 1.x, please refer to the OpenSSH FAQ[7]
for details and general tips.
Damien Miller <>
Miscellania -
This version of OpenSSH is based upon code retrieved from the OpenBSD
CVS repository which in turn was based on the last free sample
implementation released by Tatu Ylonen.
References -
[5] (PAM is standard on Solaris
and HP-UX 11)
$Id: README,v 1.50 2001/12/24 03:17:21 djm Exp $