Some questions about jails

Matteo Riondato rionda at gufi.org
Wed Sep 22 10:40:15 PDT 2004


Hello hackers!

I've a few questions about jail(8) and hope you'll be so kind to answer
them =)

First of all: Why is procfs(5) required inside a jail (speaking about
5.x and 6) ? "
As procfs is considered deprecated due to its inherent security
risks",why should it be used inside a jail?

Second question: why does an "ifconfig" from inside a jail list every
network card present in the host system? Wouldn't it be better if only
lo0 and the interface with the jail IP are listed ? I think it will,
because it's my personal opinion (please refute me, I can be wrong) that
one jail's purpouses is to fool the jail users, making them believe that
they are inside a real system. I came to this conclusion reading about
security.jail.getfstatroot_only in jail(8).

Thank you in advance for your replies.
Best Regards
-- 
Rionda aka Matteo Riondato
GUFI Staff Member (http://www.gufi.org)
FreeSBIE Developer (http://www.freesbie.org)
BSD-FAQ-it Main Developer (http://www.gufi.org/~rionda)
Sent from: kaiser.sig11.org running FreeBSD-6.0-CURRENT
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