Fire Wall Protection

Question

HiI am Robin. I am doing my first year Computer Science and Engineering. I want to know what is Firewall protection. Can anybody explain this to me?.Robin.

Waïti · Accepted Answer

Your highness (or is it your majesty ?).

(this raises the question : does it require a capital H or capital M ~~from fear of capital punishment~~ when addressing a king... but this is a whole another story...)

Briefly explained in general terms... A firewall in computing is a security mechanism (software based mostly but maybe some hardware components to it though) which ensures to isolate the outside world from the inside world. It filters out what comes from the outside and makes sure what comes in does not pose a threat (viruses...).

Spinnaker · Answer

Hello
Yes Waïti wrote it perfect.
The hardware firewalls are most called as "router". This hardware manage a network with the internet, in the simple way. All computers behind a router are invisible from the internet side. So nobody can see computers behind a router. That's in my opinion very very good. And the software firewall, protect your computer also from attacs from the internet or also from the network. The software firewall controls every traffic (in and out). He locks every port, excepting the port 80. This port is for the internet traffic. But the firewall controls also this port at suspect traffic.

So I hope, that you have understand it.

Waïti · Answer

Thanks Spinnaker, I've learned something in my own field today... Your definition is far more precise than my simplistic explanation.

King Robin · Answer

Hi

Thanks for ur immediate, very good explanations. I now have a clear idea abt the Fire wall protection. I got a lot of doubts regarding computers. I will reach u with those questions later since i am busy wiht my studies.

Robin[A]

Spinnaker · Answer

No problem!
If you have more questions, you can write them here, I'll answer them.

Fire Wall Protection

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