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Originally Posted by smurphy
The fact that the source-code is open, provides nearly any half-skilled nerd the possibility to write virus-like code for the linux OS.
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You have never tried, have you?
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This makes it very hard for a nerd to write a virus-code that executes and does something nasty. So - viruses, even if you catch one under Linux, will not eb able to do anything that requires priviledged access ...
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There are root-exploits, and finding them is the hard part about writing viruses
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What most people do not know, is that whenever a user issues a request from inside the LAN to the Internet, the Firewall will await the response from outside and let it pass through (easily said).
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And thats just one of the reasons why a Desktop firewall is NOT secure.
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The thing now is, that under Linux, you will "almost" not be able to run a .exe programm (except if you have wine / similar installed and your browser knows about the lining)
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And even then - I've yet to see a root exploit from within Wine
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1. My Lan is secured both ways. I configured my firewall to let pass only specific traffic in _both_ directions !
2. I don't go to unknown websites under Windows
3. I know my system and the way it behaves !
That works Believe me
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I guess you are not talking about a desktop firewall - but about a real firewall (or, at least, an IP filter)

And I never objected to those