Wednesday 10 July 2013

Firewall and Tunnelling basics

Hi Guys ,

Few days back i got a mail saying firewall are being replaced. I hardly understood what is a firewall.

Few basics that i knew 

I knew windows has firewall which does not allow you access to ports for someone trying to get access from other machine.Similarly also knew oracle communicate on 1515 port and My sql on some other port .Port 80 for http and firewall monitors these that it .With tunneling you can safely communicate with other machines using ports you like .Like sending http request on some other port so that you can access facebook from inside private networks (office/College) .Nothing much in detail

Below is some more understanding 

Check out this video.It tells you all that firewalls are capable of doing

http://www.youtube.com/watch?v=3_wGDeQOsDE

will write later when time permits 

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