From owner-freebsd-security@FreeBSD.ORG Thu Sep 22 16:32:07 2005 Return-Path: X-Original-To: freebsd-security@freebsd.org Delivered-To: freebsd-security@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id DCBDE16A41F for ; Thu, 22 Sep 2005 16:32:07 +0000 (GMT) (envelope-from markzero@logik.ath.cx) Received: from addr9.addr.com (addr9.addr.com [38.113.244.40]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9606543D45 for ; Thu, 22 Sep 2005 16:32:07 +0000 (GMT) (envelope-from markzero@logik.ath.cx) Received: from logik.ath.cx (localhost [127.0.0.1]) by addr9.addr.com (8.12.11/8.12.8/Submit) with ESMTP id j8MGW3AW045150; Thu, 22 Sep 2005 09:32:04 -0700 (PDT) Received: by logik.ath.cx (Postfix, from userid 1001) id 9D58D62AB; Thu, 22 Sep 2005 17:32:03 +0100 (BST) Date: Thu, 22 Sep 2005 17:32:03 +0100 From: markzero To: David Wolfskill Message-ID: <20050922163203.GD91509@logik.internal.network> References: <20050922152718.GB91509@logik.internal.network> <20050922162238.GZ54033@bunrab.catwhisker.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="eHhjakXzOLJAF9wJ" Content-Disposition: inline In-Reply-To: <20050922162238.GZ54033@bunrab.catwhisker.org> X-GPG-Key: http://darklogik.org/pub/pgp/pgp.txt X-Fingerprint: 0160 A46A 9A48 D3B0 C92F B690 17FB 4B72 0207 ED43 X-ADDRSpamFilter: Passed, probability (0%) X-ADDRSignature: 19DA4F86 Cc: freebsd-security@freebsd.org Subject: Re: Tunnel-only SSH keys X-BeenThere: freebsd-security@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Security issues \[members-only posting\]" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Sep 2005 16:32:08 -0000 --eHhjakXzOLJAF9wJ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable > > Hello. > >=20 > > I once read somewhere that it's possible to limit SSH pubkeys to > > 'tunnel-only'. I can't seem to find any information about this > > in any of the usual places. > > ... > > Can this be done with OpenSSH? I'd like to try and stay away from > > the complexities of a chrooted-stunnel for now... >=20 > See the section "AUTHORIZED_KEYS FILE FORMAT" in the sshd man page. >=20 > There is also a discussion of this in the O'Reilly _SSH_ book. Oops, forgot to check the manual page. "It couldn't possibly be there, that's far too obvious..." Thanks, M --=20 pgp: http://www.darklogik.org/pub/pgp/pgp.txt 0160 A46A 9A48 D3B0 C92F B690 17FB 4B72 0207 ED43 --eHhjakXzOLJAF9wJ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iQIVAwUBQzLcghf7S3ICB+1DAQq2gw//Xtljgmvgd9NxE+znUG+ks7Wg0zUa+x1c mwjy9AbdCjB3/EPtY4PAEa814pe6g993ZNdjXw2i9yZvRwM3oPCmBCM4CReWFA1G VoRnp3rk7EoJvdspusMWjFjgfDWe7cGrRTZjmHIrskQgM3I+hTG11wWpzx+C+KHB EP7CGup6+i3TJClCLOdEKCB8P9Ue/ch2dQkduVWlh5j5Z9jmKRxzbcrbaPWWt3Wr fDzRWCKMRQAUPiN0e3D7bBKVw5HZyF0wi/gi5Ju2DI20zTN5gD9DkxOwzh1kaE7o mpK+TvLfsC0m6hLuCmb1WrVSHxfhuTBUB6EUk4KF9HQr3FIhZStRzhscCUOyBeO8 Ibnrv7D6i9PpGJEwSYr02mlplVtnZ6YKwEIsfmWF9Y9CdfakRFjDLb0fLf55V3JF yelCNhs0+WcJ4WkS420fty43Jcm50yBpcmIqY7un6yWRLY6VypR0JWUbR09fpIlE hTLwPm1xjYLwtjCY/W82mYYmktHkhKeymXqDsWAjxkXejX9ROGvhtMRX+EGuN1RE sH5hUFVXKwctn58ubcf4y+Ljc2iUYCob+PInG/cKMTk054Ta2oNZhxUHJIc/kLRP rxH5TBvfkEUc2B8/PM2LxicpLcNhz8rW5Ehe5oAR0Re7lOZdFkSimG0QU2VU0jvY 97iSj377DQA= =ym92 -----END PGP SIGNATURE----- --eHhjakXzOLJAF9wJ--