[olug] Network filtering with ipchains

Phil Brutsche pbrutsch at creighton.edu
Fri Jun 15 22:23:08 UTC 2001

Quoting Jon <thechunk at thechunk.dhs.org>:

> I am curious again about ipchains / iptables.  I know you guys have to
> be getting tired of my questions.

Nah, never!

> Anyway I have a computer for my kids and would like to block all outgoing 
> traffic from there computer to the internet but still have them on my 
> internal network.

iptables -A output -s <IP of the computer to block> -j REJECT

> OK that is the first step.  The second part is I would like to open 
> connections for them to parent "approved" sites that we deem worthwhile / 
> acceptable for them.

That's a tricky issue (who do you trust to "approve" sites?) as well as totally 
unrelated to netfilter.


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