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dashang trivedi wrote:My objective is if i open yahoo page that means port 80 HTTP is active....so its must in listen mode ....but why my code is give Exception
The Sun Certified Java Developer Exam with J2SE 5: paper version from Amazon, PDF from Apress, Online reference: Books 24x7 Personal blog
The Sun Certified Java Developer Exam with J2SE 5: paper version from Amazon, PDF from Apress, Online reference: Books 24x7 Personal blog
dashang trivedi wrote:is it possible in java to manipulate the ip layer of network communication. Basically I want to be able to get my hands on packets BEFORE their port is resolved and they're passed onto their service application
dashang trivedi wrote:so many software are available in market like wire-shark,tcpdump,snort they store the ip address log....
dashang trivedi wrote:so i think it can be develop in java also....
The Sun Certified Java Developer Exam with J2SE 5: paper version from Amazon, PDF from Apress, Online reference: Books 24x7 Personal blog
Andrew Monkhouse wrote:Not with Java directly.
You would need to know the operating system on use on the computer you wish to monitor, and you would need administrator access to it. Then you could install some software into the protocol stack to track this.
There is a huge legal minefield here. I suggest you talk to your system administrators for simpler solutions that are legal in your jurisdiction.
Elchin Asgarli wrote:What can be illegal about this?
Lester Burnham wrote:
Elchin Asgarli wrote:What can be illegal about this?
As Andrew said, it depends on the jurisdiction. There have been court decisions that port scanning a computer that is not under your control, or which you are explicitly allowed to probe, is considered an attack (and thus illegal).
Don't get me started about those stupid light bulbs. |