From owner-freebsd-security  Tue Jan 11  5: 9:34 2000
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Message-Id: <200001111308.XAA31980@nymph.detir.qld.gov.au>
To: naddy@mips.rhein-neckar.de (Christian Weisgerber)
Cc: freebsd-security@freebsd.org, syssgm@detir.qld.gov.au
Subject: Re: dump over ssh 
References: <854v9q$1gf9$1@bigeye.rhein-neckar.de> <858p5j$mu3$1@bigeye.rhein-neckar.de>
In-Reply-To: <858p5j$mu3$1@bigeye.rhein-neckar.de>
    from Christian Weisgerber at "09 Jan 2000 02:44:19 +0100"
Date: Tue, 11 Jan 2000 23:08:06 +1000
From: Stephen McKay <syssgm@detir.qld.gov.au>
Sender: owner-freebsd-security@FreeBSD.ORG
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X-Loop: FreeBSD.org

On Sunday, 9th January 2000, Christian Weisgerber wrote:

>Christian Weisgerber <naddy@mips.rhein-neckar.de> wrote:
>
>> # dump -0aP ssh -f host:/dev/nrsa0 /
>
>BTW, I just noticed that the Linux port of dump contains equivalent
>functionality. No additional flag there, but the environment variable
>RSH is checked. Opinions on which approach is preferable?

I use dump over ssh all the time.  I just use a pipe as suggested by
others here.  I don't think your change is necessary.

But if you absolutely *must* change dump to tightly integrate ssh, I really
hope you use an explicit command line argument, not an environment variable.
There are too many hidden magic environment variables already.

Stephen.

PS Once upon a time I used a command that took an input stream and wrote
it to a set of tapes or floppies or whatever.  If I still had that program
you could use "ssh host dump ... | multivol /dev/nrsa0" and keep changing
tapes to make it happy.  That's more Unix-like, if that counts for anything.


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