Purpose: describe what ssh is, where to find it, and what connections to Tcl it has.
See http://www.openssh.org/ for an open implementation of the secure protocol for starting shell commands across an inter/intranet.
[In the meantime, start with [L1 ].]
Anyone know of a Tcl extension binding to one of the ssh libraries?
Perhaps D. J. Hagberg's example of port forwarding, from 1998 [L2 ] is useful.
Another suggestion was TLS.
TV I've within some limitations, used the cygwin ssh facility, which is quite extensive, except varying from a drag to requiring out of package documentation to install. It is almost unix, though. It also contains working executables to use openSSL to create and deal with certificates, I used it succesfully to make a secure httpd tick, except I forgot how.
CMcC I've thrown together some code to allow remote ssh tcl execution.
hkoba: You can also use comm via ssh to send/eval any script to remote host.
Russell Treleaven reports [L3 ] that he successfully automates ssh client sessions on a Windows host with ActiveState's Expect and the ssh2 executable [L4 ]. He uses the "send slow" option. Both of these applications are proprietary.
AMG: I whipped up a Tcl script that allows you to ssh to multiple hosts at the same time, using a single command and a single set of stdin/stdout/stderr. Try running bash with it, heh heh. (It really works!) For details, see multissh.
See also: Automating sftp with Tcl
"Five Minutes to a More Secure SSH" [L5 ]