Date: Thu, 13 Jul 2000 23:27:28 -0400 From: Jim Mercer <jim@reptiles.org> To: Tony Finch <dot@dotat.at> Cc: hackers@freebsd.org Subject: Re: patch for openssh to work with pty-redir Message-ID: <20000713232727.E677@reptiles.org> In-Reply-To: <E13CtRt-0006Ga-00@chiark.greenend.org.uk>; from dot@dotat.at on Fri, Jul 14, 2000 at 01:35:25AM %2B0100 References: <20000713182202.C677@reptiles.org> <E13CtRt-0006Ga-00@chiark.greenend.org.uk>
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On Fri, Jul 14, 2000 at 01:35:25AM +0100, Tony Finch wrote: > Hmm, I was confused for a while there by your reversed patch, but I know > where we are now :-) yeah, sorry, i should have verified i got the polarity right. > I had a similar problem with user-ppp over ssh talking to an sshd on > OpenBSD. The problem turned out to be that if sshd gives you a pty then > stdin and stdout are the same bidirectional descriptor (so ppp works) > but if that isn't the case then sshd uses two pipes in a unidirectional > fashion. FreeBSD's sshd (since March in -CURRENT and April in 4.x) has > a tweaked includes.h that doesn't #define USE_PIPES, so stdin is always > bidirectional and ppp over ssh works. If your sshd is compiled in this > way then you shouldn't need pty-redir either (although I can't find > the source to check that it does what I think it does). i'm doing this one 4.0-stable, and what you are saying is that it should work. i have not been able to get it going with openssh, without the hack. is there some incantation of ssh i'm not aware of where i can do something like: ssh -h remhost --local-exec "/usr/sbin/pppd" --remote-exec "/usr/sbin/pppd" otherwise, how do you escape using something like pty-redir? > Thanks to Brian "ppp over ssh over httptunnel" Somers for the explanation! i poked about awfulhak.org and don't really get the reference. -- [ Jim Mercer jim@reptiles.org +1 416 410-5633 ] [ Reptilian Research -- Longer Life through Colder Blood ] [ Don't be fooled by cheap Finnish imitations; BSD is the One True Code. ] To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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