Since you are interested in knowing what connections are active, you
might be interested in an "interactive" firewall, so that you can
build your trust list explicitly. I have heard good things about this
project, your mileage may vary:
http://sourceforge.net/projects/leopardflower/
Carlos
On Fri, Jan 3, 2014 at 12:27 PM, Mike C. <[email protected]> wrote:
>>
>> <snip>
>> >>>>> "Richard" == Richard Owlett <[email protected]> writes:
>>
>> Richard> What I want should be simple, block *EVERYTHING* except
>> Richard> email, newsgroup, and browsing with SeaMonkey or it's Debian
>> Richard> blessed counterpart. There will be occasional downloads fro
>> Richard> Debian repositories.
>>
>> Firewalls can't (generally) tell what application you are using. All
>> they really see is your network source/destination addresses and ports
>> and such. <snip>
>>
>
> Firewalls generally work by traffic type such as email, voice over ip, etc
> by using what are know as well known port numbers, port numbers up to 1024
> that have been generally agreed upon and standardizes, also by
> source/destination and days/hours of access.
>
> I can think of at least a half dozen firewall apps that are available on
> Debian. Which one are you using? For a novice of firewalls, I'd recommend
> guarddog or firestarter. They both have GUIs for configuring the firewall
> and are easy to configure with very little customization and/or firewall
> knowledge.
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