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[openssh.git] / README

[ A Japanese translation of this document is available at
[ http://www.unixuser.org/%7Eharuyama/security/openssh/index.html
[ Thanks to HARUYAMA Seigo <haruyama@nt.phys.s.u-tokyo.ac.jp>

This is the port of OpenBSD's excellent OpenSSH to Linux and other
Unices.

OpenSSH is based on the last free version of Tatu Ylonen's SSH with
all patent-encumbered algorithms removed (to external libraries), all
known security bugs fixed, new features reintroduced and many other
clean-ups. More information about SSH itself can be found in the file
README.Ylonen. OpenSSH has been created by Aaron Campbell, Bob Beck,
Markus Friedl, Niels Provos, Theo de Raadt, and Dug Song. It has a
homepage at http://www.openssh.com/

This port consists of the re-introduction of autoconf support, PAM
support (for Linux and Solaris), EGD[1] support, SOCKS support (using
the Dante [6] libraries and replacements for OpenBSD library functions
that are (regrettably) absent from other unices. This port has been
best tested on Linux, Solaris, HPUX, 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.

All new code is released under a XFree style license, which is very
liberal. Please refer to the source files for details. The code in
bsd-*.[ch] is from the OpenBSD project and has its own license (again,
see the source files for details).

OpenSSH depends on Zlib[2], OpenSSL[3] and optionally PAM[4] and
Dante[6]. To build the GNOME[5] pass-phrase requester
(--with-gnome-askpass), you will need the GNOME libraries installed.
If you are building OpenSSH on a Unix which lacks a kernel random
number pool (/dev/random), you will need to install EGD[1]. 

There is now several mailing lists for this port of OpenSSH. Please
refer to http://violet.ibs.com.au/openssh/list.html for details on how
to join.

Please send bug reports and patches to the mailing list
openssh-unix-dev@mindrot.org. The list is currently open to posting by
unsubscribed users.

Please refer to the INSTALL document for information on how to install
OpenSSH on your system. The UPGRADING document details differences 
between this port of OpenSSH and F-Secure SSH 1.x.

Damien Miller <djm@ibs.com.au>
Internet Business Solutions

Miscellania - 

This version of SSH is based upon code retrieved from the OpenBSD CVS
repository which in turn was based on the last free 
version of SSH released by Tatu Ylonen.

Code in bsd-misc.[ch] and gnome-ssh-askpass.c is Copyright 1999 Damien
Miller & Internet Business Solutions and is released under a X11-style
license (see source files for details).

References -

[1] http://www.lothar.com/tech/crypto/
[2] http://www.cdrom.com/pub/infozip/zlib/
[3] http://www.openssl.org/
[4] http://www.kernel.org/pub/linux/libs/pam/ (PAM is standard on Solaris)
[5] http://www.gnome.org/
[6] http://www.inet.no/dante