FW: [H-GEN] SSH PROBLEM

[Jason Parker-Burlingham]

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Robert Brockway <robert at timetraveller.org> writes:

> telnet to port 22 is an attempt to connect to your ssh port.  Telnet
> is a great diagnostic tool.

I would recommend using netcat (aka "nc") where possible; it does
(IMHO) a much better job of connecting to a socket at one and, a file
descriptor at the other, and mediating between the two without the
protocol overhead of telnet; it's also capable of doing a few things
which aren't (as far as I know) possible with telnet[1].

Oh, and it interfaces quite nicely with ssh.

jason

[1] : One of my favorites is to ssh to another host with some port
      forwarding on high ports (so superuser access isn't required).
      Then, back on the original host, one can run an nc process
      connecting to the forwarded port, and use that as input into a
      pipe.


      A                                    B
      ssh to B, port 4444->A:5555

                                           run process X, use nc to pipe
                                           output to localhost:4444

      use nc to read from localhost:5555,
      and feed into process Y.

      I usually find this much less error prone than mucking about
      writing an entire script for B on the command-line at A and
      finding it didn't work right much later in the process.
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