Free SSH with OpenSSH (Unix Power Tools, 3rd Edition)

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51.3. Free SSH with OpenSSH

In some systems, such as Mac OS X, SSH (Section 46.6) is built-in. In other cases you can use commercial products, such as SecureCRT. However, there is a freely available application you can download called OpenSSH, available at http://www.openssh.com.

There are installation packages for OpenSSH for Linux, Solaris, FreeBSD, AIX -- in fact, most versions of Unix.

OpenSSH has multiple tools, used in place of existing connectivity applications:

ssh: Replaces telnet and rlogin
scp: Replaces rcp for copying files
sftp: Replaces ftp

In addition, the installation features the necessary server-side installation as well as utilities to assist in the setup and maintenance of the application.

To configure OpenSSH with FreeBSD, check the documentation page at http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/openssh.html. To use OpenSSH with Redhat Linux, check the web pages at http://www.redhat.com/docs/manuals/linux/RHL-7.3-Manual/custom-guide/ch-openssh.html. Check your Unix system documentation for OpenSSH installation specific to your environment.

-- SP


51.2. Protecting Access Through SSH		51.4. SSH Problems and Solutions