Re: firewall?

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Markus Falb wrote:
> On 16.7.2011 19:03, Ljubomir Ljubojevic wrote:
> 
>> All firewalls (on Linux at least) are by default closed, and you need 
>> knowledge to punch through the wholes for your public services.
> 
> This is complete nonsense! You are free to configure a default policy of
> accept and forbid only selected services.
> 

Please do not pull sentences out of context. Keith wrote:

 > Which is why one poster mentioned that you need to be
 > familiar with IPtables and Networking before trying to make
 > your machine(s) network(s) secure?

and I replied in the sense that he only needs to turn his firewall ON to 
be secure. "by default" means exactly that, I was not writing about you 
being able to change *default* configuration!

If you turn firewall ON (in GUI for example, and especially in 
RHEL/CentOS ), without any allowed service,  your system/network will be 
protected. If you do allow some services, the rest of the services on 
your system/network will be protected.

Ljubomir
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