Date: Sun, 16 May 1999 20:51:19 -0500 (CDT) From: Igor Roshchin <igor@physics.uiuc.edu> To: nr1@ihug.co.nz Cc: freebsd-security@freebsd.org Subject: Re: secure backup Message-ID: <199905170151.UAA04558@alecto.physics.uiuc.edu> In-Reply-To: <199905170014.MAA18766@smtp1.ihug.co.nz> from "nr1@ihug.co.nz" at "May 17, 1999 12:14:19 pm"
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If both machines are Unix - you can use SSH. I am using the following script: (from the machine that I backup) (Written for FreeBSD - so, you might want to optimize it differently - if you using some other Unix - you might want to adjust the size of the buffer) ------------------------------- #!/bin/csh -f # set SSH="ssh -c none -i /local-path-to-private/key backup@tape-machine.com /bin/dd bs=64k of=/dev/nrst0" echo starting MyMachine date dump 0ubsdf 64 61000 100000 - / | /bin/dd bs=64k | $SSH dump 0ubsdf 64 61000 100000 - /usr | /bin/dd bs=64k | $SSH dump 0ubsdf 64 61000 100000 - /var | /bin/dd bs=64k | $SSH dump 0ubsdf 64 61000 100000 - /mail | /bin/dd bs=64k | $SSH -------------------------------- (backup - is the account of the user on the machine "tape-machine.com" - the one which has the tape driver attached) Hope, this helps, IgoR > Can anyone recommend how I should go about creating a backup to an untrusted > machine that has the tape drive, and using an untrusted network. > > I'm a bit wary of encrypting the output of tar or dump, as a single byte error > would make the rest of the backup useless. I'd like to encrypt (pgp?) each > file separately as I go, so that a corrupted byte affects only one file on > retrieval. Is there an existing way to do this, or should I hack tar or dump > into doing it? > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-security" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message
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