Date: Sun, 13 Jan 2002 01:13:33 -0500 From: Alan Eldridge <alane@geeksrus.net> To: Ken Stailey <kstailey@surfbest.net> Cc: "."@babolo.ru, freebsd-ports@FreeBSD.ORG Subject: Re: ports/33818: Bootable ITS image for KLH-10 PDP-10 emulator Message-ID: <20020113061333.GA74245@wwweasel.geeksrus.net> In-Reply-To: <3C40D184.1000702@surfbest.net> References: <200201130013.DAA11901@aaz.links.ru> <3C40D184.1000702@surfbest.net>
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On Sat, Jan 12, 2002 at 07:15:00PM -0500, Ken Stailey wrote:
>"."@babolo.ru wrote:
>>For lot of emulated systems (RT-11 vXX, UNIX vXX so on)
>>I have scripts that copy disk image to user's TMPDIR, for example:
>>#!/bin/sh
>>echo 'type "unix" first, login as root'
>>cp /usr/contrib/sim/unix_v5_rk.dsk ${TMPDIR}/unix5-$$
>>echo "set cpu 18b" > ${TMPDIR}/unix5-$$-c
>>echo "att rk0 ${TMPDIR}/unix5-$$" >> ${TMPDIR}/unix5-$$-c
>>echo "boot rk" >> ${TMPDIR}/unix5-$$-c
>>exec nice -5 pdp11 ${TMPDIR}/unix5-$$-c
>>
Exactly the sort of thing I was talking about. Except an install, so the
user would then have a persistent disk of his/her own.
>Yes you can telnet or supdup or ftp into an ITS system. ITS has no
>security. You can issue commands without logging in. You can log into
>someone else's account with no password because there are no passwords
>on accounts. You can make up an account name and log into that. No
>password file, no security. You need to read some ITS history. Try
>
>http://www.gnu.org/philosophy/stallman-kth.html
Thanks. I am more concerned about what the emulator can do, and what files
it leaves open.
See above.
If the emulator will allow anyone to come in, then I see having any
part of it SUID root as a problem. Unless it can be linked against -lwrap,
or forced to run either chrooted or in a jail.
Using -lwrap.... Now there's an idea....
--
Alan Eldridge
Pmmfmffmmfmp mmmpppppffmpmfpmpppff PmpMpmMpp ppfppp MpfpffmppmppMmpFmmMpm
mfpmmmmmfpmpmpppff.
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