I believe my ISP may have tried to block certain file sharing programs. To my understanding the only way this could be done would be to block the associated ports. How could I find which ports may be blocked without actually calling them?
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I believe my ISP may have tried to block certain file sharing programs. To my understanding the only way this could be done would be to block the associated ports. How could I find which ports may be blocked without actually calling them?
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Use NetCat and a friend on another network!
set NetCat to listen on the ports in question and run a bat file upon a connection being made.
nc -l -p1214 -esuccess.bat
success.bat
--------------
@echo .
@echo .
@echo .
@echo success!
@echo .
@echo .
@echo .
pause
--------------
from the other computer have your friend run NetCat like this:
nc -vv -n xxx.xx.x.xxx 1214
where xxx = your IP address
if s/he can make the connection this will be displayed:
.
.
.
success!
.
.
.
C:\>pause
Press any key to continue . . .
sent 2, rcvd 77: NOTSOCK
if your friend dosn't get this message the port can't be reached