SSH: The Secure Shell
The Definitive Guide
by Daniel J. Barrett, Ph. D., Richard E. Silverman, and
Robert G. Byrnes.
This site is operated by the authors of the O'Reilly book on SSH. The
first edition was published in February of 2001, by Dan Barrett and
Richard Silverman. Joined by Robert Byrnes, we completed the second
edition in May of 2005.
We have also written O'Reilly's Linux Security Cookbook.
Here are a few articles by the authors:
- Richard Silverman
- Robert Byrnes
What is SSH?
SSH is a tool for secure remote login over insecure networks. It provides
an encrypted terminal session with strong authentication of both the
server and client, using public-key cryptography. Features include:
- a variety of user authentication methods
- tunneling arbitrary TCP connections through the SSH session, protecting
normally insecure protocols such as IMAP and allowing secure passage
through firewalls
- automatic forwarding of X windows connections
- support for external authentication methods, including Kerberos and
SecurID
- secure file transfers
SSH is based on a documented protocol on the IETF standards track; see the SECSH Working
Group.
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