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Originally Posted by ntluser
For the uninitiated like me, what's the significance of blocking port 135?
Which programs use that port?
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M$ Exchange uses it, but Exchange is normally only found running within corporate networks so the blocking should have a minimal impact. Exchange is the example given in ntl's FAQs ... don't know what other apps might use it but the impression being given is 'not many at all'.
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And if it is being used as a way of blocking viruses surely the virus makers wil merely re-direct their programs to find open ports which you are using that are unblocked.
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For sure they will, for such is the way of virus writers ... and such is the way of M$, that it prolly won't take long to find the next exploit.
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Surely, if users have properly configured firewalls, anti- virus software and exercise common sense and caution the viruses will be kicked into touch.
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You hit the nail on the head. This is why viruses spread so easily. One of the biggest reasons why certain viruses and hacks work so well is that people don't apply patches for known problems or update their anti-virus software.