why we dont need antivirus on linux box?

Because there are little to no in-the-wild Linux viruses. However, if you want to avoid passing Windows viruses to Windows computers through email or over a network, you might want to look at something like clamav or AVG Linux.

There are various reasons and I might not list them all but for one I think mostly because the 'bad guys' tend to aim at harming Windows as it is the dominant OS. Besides that most viruses that already exist are made to run on Windows and they don't affect Linux even if you get it it can't do anything. Also, something doesn't just easily 'install' itself to Linux it usually needs root permissions (i.e: password).

You get anti virus programs such as clam av etc for Linux but it's not such a major deal, however it might help you to prevent spreading Windows viruses to your friends and co.

My

just as said above,
2 reasons
1) there are hardly any virusses for linux
2) making a virus for linux is a lot harder then making one for windows.

thats what i want to know that why making virus is hard for linus system?

Very good link and I'm still reading...If only the people I try to prove this actually took reading seriously they might understand but most are too lazy to read more than two lines...

really a very good link...

Good for you, netstrider. You may want to revise post #3 now and replace dominant with weakest ...
And yes, most people won't read more than a couple of lines. They just fire up X server as root and they'll never know they bypassed most of what makes *nix secure. Then their boxes get hacked and they say: What a myth, Linux is no way more secure than Windows.

well, there is no patch for stupidity

Well, you make something idiot-proof and the universe goes one better and makes a bigger idiot.


Then again, I think the reason that Linux has very few virii is because not all Linux systems are interoperable. That is to say that a virus for one distro may not work on another. Thus, the evolution of Linux is aiding anti-virus efforts.