Secure Shell
implementations: OpenSSH
OpenSSH is
a FREE version of the SSH protocol suite of network connectivity tools that increasing
numbers of people on the Internet are coming to rely on. Many users of telnet,
rlogin, ftp, and other such programs might not realize that their password is
transmitted across the Internet unencrypted, but it is. OpenSSH encrypts all traffic
(including passwords) to effectively eliminate eavesdropping, connection hijacking,
and other network-level attacks. Additionally, OpenSSH provides a myriad of secure
tunneling capabilities, as well as a variety of authentication methods.
OpenSSH manual
pages
Web manual pages are
available from OpenBSD for the following commands. These manual pages reflect
the latest development release of OpenSSH.
- ssh
- The basic rlogin/rsh-like client program.
- sshd
- The daemon that permits you to login.
- ssh-agent
- An authentication agent that can store private keys.
- ssh-add
- Tool which adds keys to in the above agent.
- sftp
- FTP-like program that works over SSH1 and SSH2 protocol.
- scp
- File copy program that acts like rcp(1).
- ssh-keygen
- Key generation tool.
- sftp-server
- SFTP server subsystem (started automatically by sshd).
- ssh-keyscan
- Utility for gathering public host keys from a number of hosts.
- ssh-keysign
- Helper program for hostbased authentication.
Tipps & tricks
General
-
Secure Communications with OpenSSH,
A document on network security, cryptography, and an introduction into SSH
usage with OpenSSH.
-
OpenSSH key management, Part 1,
Introduction into DSA and RSA authentication protocols.
- OpenSSH
key management, Part 2,
Description of the ssh-agent program usage.
- OpenSSH
key management, Part 3,
Using agent forwarding to authenticate on untrusted hosts.
-
Tips and tricks of advanced SSH usage,
Expert use of SSH for the administrator.
HP-UX
Mac OS X
AIX
Solaris
Last
update by Hermann Heimhardt on December 30, 2002
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