Commit Graph

9 Commits

Author SHA1 Message Date
Maxim Konovalov
d6131f4b8e o Add -u <username> flag to jail(8): set user context before exec.
PR:		bin/44320
Submitted by:	Mike Matsnev <mike@po.cs.msu.su>
Reviewed by:	-current
MFC after:	6 weeks
2003-03-27 12:16:58 +00:00
David E. O'Brien
90e655ea4e Perform a major cleanup of the usr.sbin Makefiles.
These are not perfectly in agreement with each other style-wise, but they
are orders of orders of magnitude more consistent style-wise than before.
2001-07-20 06:20:32 +00:00
Dima Dorfman
f6751868e4 Set WARNS=2 on programs that compile cleanly with it; add $FreeBSD$
where necessary.

Submitted by:	Mike Barcroft <mike@q9media.com>
2001-06-30 05:39:36 +00:00
Ruslan Ermilov
345e52e742 - Backout botched attempt to introduce MANSECT feature.
- MAN[1-9] -> MAN.
2001-03-26 14:42:20 +00:00
Ruslan Ermilov
c73e22c3d4 Set the default manual section for usr.sbin/ to 8. 2001-03-20 18:17:26 +00:00
Peter Wemm
97d92980a9 $Id$ -> $FreeBSD$ 1999-08-28 01:35:59 +00:00
Poul-Henning Kamp
c020621f03 Various cosmetics.
Submitted by:	Rudolf Cejka <cejkar@dcse.fee.vutbr.cz>
Reviewed by:	phk
1999-05-05 19:23:45 +00:00
Poul-Henning Kamp
ce5c1cd1ff Fix various bogons.
Submitted by:	Rudolf Cejka <cejkar@dcse.fee.vutbr.cz>
Reviewed by:	phk
1999-05-04 18:20:53 +00:00
Poul-Henning Kamp
75c1354190 This Implements the mumbled about "Jail" feature.
This is a seriously beefed up chroot kind of thing.  The process
is jailed along the same lines as a chroot does it, but with
additional tough restrictions imposed on what the superuser can do.

For all I know, it is safe to hand over the root bit inside a
prison to the customer living in that prison, this is what
it was developed for in fact:  "real virtual servers".

Each prison has an ip number associated with it, which all IP
communications will be coerced to use and each prison has its own
hostname.

Needless to say, you need more RAM this way, but the advantage is
that each customer can run their own particular version of apache
and not stomp on the toes of their neighbors.

It generally does what one would expect, but setting up a jail
still takes a little knowledge.

A few notes:

   I have no scripts for setting up a jail, don't ask me for them.

   The IP number should be an alias on one of the interfaces.

   mount a /proc in each jail, it will make ps more useable.

   /proc/<pid>/status tells the hostname of the prison for
   jailed processes.

   Quotas are only sensible if you have a mountpoint per prison.

   There are no privisions for stopping resource-hogging.

   Some "#ifdef INET" and similar may be missing (send patches!)

If somebody wants to take it from here and develop it into
more of a "virtual machine" they should be most welcome!

Tools, comments, patches & documentation most welcome.

Have fun...

Sponsored by:   http://www.rndassociates.com/
Run for almost a year by:       http://www.servetheweb.com/
1999-04-28 11:38:52 +00:00