How to connect a jail to the web ?
fbsd8 at a1poweruser.com
Wed Aug 11 00:03:02 UTC 2010
Brice ERRANDONEA wrote:
> I've just created my first FreeBSD jail in order to install a web server inside.
> But I don't know how to connect it to the web. When I try pinging a http
> website, it doesn't work. Of course, it works when I do it from outside the
> Another problem, probably linked to the first one, I can't run rc within the
> jail, even as the jail's root. It says : permission denied.
> Here's how I built and started my jail. I had already run make buildworld when
> upgrading to 8.1 release :
> # mkdir /usr/prison
> # cd /usr/src
> # make installworld DESTDIR=/usr/prison
> # make distribution DESTDIR=/usr/prison
> # mount -t devfs devfs /usr/prison/dev
> # jail -c path=/usr/prison host.hostname=ServeurWeb ip4.addr=188.8.131.52 persist
> # jail /usr/prison ServeurWeb 184.108.40.206 csh
> I guess this must be a very basic question but please help me.
1. ping is a security risk from within a jail and is disabled by design.
(read jail(8) for details). No use using a jail if the first thing you
do is re-enable ping in the jail. To test for public internet connection
from within a jail use dig or whois commands.
2. Using the hosts firewall to drive traffic to a jail is a sign you
have your jail incorrectly configured or do not understand how jails are
intended to work.
3. Jail do not have a network stack of their own, so they cant have a
firewall. The host's firewall and and network stack are in control.
4. There are 2 utilities for creating jails. Qjail the better documented
of the 2, is designed for the novice which clearly you are. I strongly
suggest you checkout
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