Date: Sat, 27 Dec 2008 16:47:12 +0000 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: User Questions <freebsd-questions@freebsd.org> Cc: Noah <admin2@enabled.com> Subject: Re: running shell command through ssh tunnel Message-ID: <49565C10.1010505@infracaninophile.co.uk> In-Reply-To: <44bpux7hjx.fsf@lowell-desk.lan> References: <4955887F.1090704@enabled.com> <44bpux7hjx.fsf@lowell-desk.lan>
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig23F7755DC2D7A4C709656272 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Lowell Gilbert wrote: > Noah <admin2@enabled.com> writes: >=20 >> I am trying to run a shell command to the host at the far end of an ss= h >> tunnel. Here is how I structured access. Is there any way to do thi= s >> more compactly on one line? >> >> >> ssh -L 12345:192.168.1.20:22 noah@domain.com >> ssh -p 12345 localhost 'chown -R noah:noah /shares/internal/Music/' >=20 > Maybe I haven't had enough coffee yet, but wouldn't that just be > ssh noah@192.168.1.20 'chown -R noah:noah /shares/internal/Music/' > ? You might even want to use '-n' as an option to the ssh command. ENOCOFFEE. Your equivalence is only the case if you're already logged into 'domain.com' This is a fairly standard idiom for tunnelling a netwo= rk connection in through a NAT gateway or a firewall from an external Intern= et site to a protected RFC 1918 internal back-end, although the forwarded pr= otocol is usually other than SSH. Given that the OP is wanting to tunnel SSH through SSH, a one-liner to achieve his desired effect might be something like: ssh noah@domain.com ssh noah@192.168.1.20 chown -R noah:noah /shares/inte= rnal/Music/ Cheers, Matthew --=20 Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate Kent, CT11 9PW --------------enig23F7755DC2D7A4C709656272 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEAREIAAYFAklWXBYACgkQ8Mjk52CukIwL2gCdEpgl05qGEY8pgPyjxxf9wh/i eLcAn1nTHzqXP631xSigoF4RVarKE8pQ =2p8o -----END PGP SIGNATURE----- --------------enig23F7755DC2D7A4C709656272--
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