A GNU implementation of the Secure Shell protocols
lsh is a free implementation (in the GNU sense) of the ssh version
2 protocol, currently being standardised by the IETF SECSH working
This page should help you find any lsh related resources you need.
The lsh source distribution comes with a texinfo manual. You
can also read the manual online. If you're
interested in hacking lsh, make sure to read the
README and doc/HACKING files in the distribution.
The CVS server for lsh is located at cvs.lysator.liu.se. Both
anonymous pserver access (cvs -d
:pserver:email@example.com co lsh) and a cvsweb
interface is available.
There's also an mailing
list you might want to subscribe to.
lsh uses linux-style version numbers, i.e. 1.2.x, 1.4.x etc are
intended to be stable, while 1.1.x, 1.3.x, 1.5.x etc are development
lsh releases are signed using GNU
Privacy Guard, with
this public key (HTTP from Sweden, or
FTP from Sweden)
You can get the latest lsh releases from
There are also some mirror sites:
- Australia: FTP and HTTP
(nightly at 0230 local time)
- Greece: FTP
- Hungary: FTP
(nightly at 0320 local time)
- A Mac port of lsh by Jean Pierre Stierlin.
- Other free ssh programs
- SSH Communications
- The company making the original (non-free) ssh program.
- GNU Privacy Guard
- A free PGP replacement implementing the IETF's
- Linux FreeS/WAN
- A project implementing the IETF's
end-to-end network level encryption for Linux.
- The operating system,
which ships with IPSEC and OpenSSH as standard since version 2.6.
- The International Linux Kernel
- Adds kernel level support for encryption - e.g. for
encrypted loopback filesystems.
- The Kerberos FAQ.
- The eBones Kerberos distribution<\
- Other Kerberos info at KTH in Sweden.
- A free implementation of Kerberos 5, also from KTH.
- A free telnet implementation using the IETF's
Layer Security (TLS) and X.509 certificates for authentication and
- The Secure Remote
Password protocol, offers a simpler alternative to Kerberos.
- Supports Kerberos, SRP and TLS for authentication and encryption.