On 04/15/2011 06:38 PM, Mark Montague wrote:
On April 15, 2011 12:16 , "Christoph A."
> I'd like to redirect traffic (for transparent proxying) coming from a
> program running in a sandbox_net_t (or sandbox_web_t) sandbox, but as
> far as I've seen there is no possibility to match/mark packets based on
> there local security context origin.
iptables rules that match packets based on their security contexts is a
bad idea for several reasons. For a discussion of these reasons, a list
of alternative resources, examples, and a netfilter module that will do
what you're asking for if you decide to ignore the reasons why this is
bad and do it anyway, see https://github.com/markmont/xt_selinux
Thanks for the URL. I'll use xt_selinux only if there is no other way.
If at all possible, use the advice Dan already sent:
> I am not sure about proxying, but you can force all packets from the
> sandbox to go to a proxy server and block them if they tried to go
How would I force the redirect without xt_selinux?
The rule would look like this:
iptables -t nat -A OUTPUT [-needed match criteria-] -j REDIRECT
the only missing part is the match criteria.
(by "redirect traffic" I meant '-j REDIRECT')