Article View: comp.mail.misc
Article #4724Re: a bbs proposal -- use unix instead of writing a bbs
From: Marcus J. Ranum
Date: Tue, 22 Mar 1988 14:29
Date: Tue, 22 Mar 1988 14:29
30 lines
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1880 bytes
In article <708@oberlin.UUCP> cjs@oberlin.UUCP (chris seline) writes:
>I'm confused over the need for propriety BBSes. To me a unix system
>is the best bbs one can have...just give your users a limited # of
>commands --write your own shell....then your users can use umodem and
>xmodem, and the files can be stored on your system just file any file
>(i.e. we use /usr/local/src....) and they can use mail and news and
>real editors like emacs -- all with a minimum of programming.
If anyone is interested in going this route, I have a very solid
trapped shell. It supports a complete environment, some command line
variable substitution, and table driven permissions on a per user/group
basis:
Running a bbs would be as easy as making someone's login shell
sush, with
user mjr: /usr/local/bin/rn, /bin/ls, etc....
group other: blah, blah, blah....
sush supports command line logging, does *NOT* allow I/O
redirection, makes your SHELL environment variable /dev/null and
bunches of other stuff. It has code to execute a login file, etc.
It's also a fairly small executable.
It was posted in comp.sources.unix, if anyone is interested,
or I can get you a copy.
--
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Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!husc6!uwvax!oddjob!mimsy!aplcen!osiris!mjr From: mjr@osiris.UUCP (Marcus J. Ranum) Newsgroups: comp.mail.misc Subject: Re: a bbs proposal -- use unix instead of writing a bbs Message-ID: <1571@osiris.UUCP> Date: 22 Mar 88 14:29:36 GMT References: <708@oberlin.UUCP> Reply-To: mjr@osiris.UUCP (Marcus J. Ranum) Organization: Institute For Felinographical Studies Lines: 30 Keywords: mail bbs