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Date: Fri, 23 Jun 2006 21:31:40 -0500
From: Dan Nelson <dnelson@allantgroup.com>
To: Nikolas Britton <nikolas.britton@gmail.com>
Message-ID: <20060624023139.GA83209@dan.emsphone.com>
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Subject: Re: help with 'tar|rsh tar'
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In the last episode (Jun 23), Nikolas Britton said:
> I need to backup the /data directory on hostA to /data on hostB,
> about 1TB of data on a gigabit link. Right now I'm using scp but the
> handshake latency and ssh overhead is killing me.
> 
> I've looked at many examples of tar|rsh tar and I can't figure it out,
> most of the examples on the net look like this:
> # tar cf - . | rsh hostname dd of=tape-device obs=20b
> # tar -cf -...|rsh ...tar xf -...

Two quick options even more lightweight than rsh are netcat (base
system) and ttcp (in ports).  Usage examples:

host2$ ttcp -r | tar xvf -
host1$ tar cf - . | ttcp -t host2

host2$ nc -l 1234 | tar xvf -
host1$ tar cf - . | nc host2 1234

-- 
	Dan Nelson
	dnelson@allantgroup.com