I'm currently using a Windows box, running Chrome 27 on the dev channel, and I have what I believe to be an unusually large number of listening connections connected with the process.
The following command returns 268 listening ports:
netstat -aon|find /i /c "11692"
(where in this case 11692 is the main chrome process)
This is what some of the ports looks like from netstat:
UDP 0.0.0.0:62483 : 11692
UDP 0.0.0.0:62486 : 11692
UDP 0.0.0.0:62487 : 11692
UDP 0.0.0.0:62488 : 11692
UDP 0.0.0.0:62489 : 11692
UDP 0.0.0.0:62492 : 11692
UDP 0.0.0.0:62493 : 11692
UDP 0.0.0.0:62494 : 11692
UDP 0.0.0.0:62495 : 11692
UDP 0.0.0.0:62496 : 11692
UDP 0.0.0.0:62498 : 11692
UDP 0.0.0.0:62499 : 11692
UDP 0.0.0.0:62500 : 11692
UDP 0.0.0.0:62501 : 11692
UDP 0.0.0.0:62502 : 11692
UDP 0.0.0.0:62503 : 11692
UDP 0.0.0.0:62504 : 11692
UDP 0.0.0.0:62505 : 11692
UDP 0.0.0.0:62506 : 11692
UDP 0.0.0.0:62509 : 11692
UDP 0.0.0.0:62510 : 11692
UDP 0.0.0.0:62511 : 11692
UDP 0.0.0.0:62512 : 11692
UDP 0.0.0.0:62513 : 11692
UDP 0.0.0.0:62541 : 11692
UDP 0.0.0.0:62542 : 11692
UDP 0.0.0.0:62543 : 11692
UDP 0.0.0.0:62544 : 11692
UDP 0.0.0.0:62545 : 11692
UDP 0.0.0.0:62547 : 11692
UDP 0.0.0.0:62786 : 11692
UDP 0.0.0.0:62787 : 11692
UDP 0.0.0.0:62789 : 11692
UDP 0.0.0.0:62790 : 11692
UDP 0.0.0.0:62791 : 11692
UDP 0.0.0.0:62792 : 11692
UDP 0.0.0.0:62793 : 11692
UDP 0.0.0.0:62794 : 11692
UDP 0.0.0.0:62796 : 11692
UDP 0.0.0.0:62797 : 11692
UDP 0.0.0.0:62798 : 11692
UDP 0.0.0.0:62799 : 11692
UDP 0.0.0.0:62800 : 11692
UDP 0.0.0.0:62801 : 11692
UDP 0.0.0.0:62802 : 11692
UDP 0.0.0.0:62803 : 11692
UDP 0.0.0.0:62805 : 11692
UDP 0.0.0.0:62806 : 11692
UDP 0.0.0.0:62807 : 11692
UDP 0.0.0.0:62808 : 11692
UDP 0.0.0.0:62809 : 11692
UDP 0.0.0.0:62810 : 11692
UDP 0.0.0.0:62812 : 11692
UDP 0.0.0.0:62813 : 11692
UDP 0.0.0.0:62814 : 11692
UDP 0.0.0.0:62815 : 11692
UDP 0.0.0.0:62817 : 11692
UDP 0.0.0.0:62818 : 11692
UDP 0.0.0.0:62820 : 11692
UDP 0.0.0.0:62821 : 11692
UDP 0.0.0.0:62822 : 11692
UDP 0.0.0.0:62823 : 11692
UDP 0.0.0.0:62824 : 11692
UDP 0.0.0.0:62825 : 11692
UDP 0.0.0.0:62826 : 11692
UDP 0.0.0.0:62827 : 11692
UDP 0.0.0.0:62828 : 11692
UDP 0.0.0.0:62829 : 11692
UDP 0.0.0.0:62830 : 11692
UDP 0.0.0.0:64681 : 11692
UDP 0.0.0.0:64682 : 11692
UDP 0.0.0.0:64683 : 11692
UDP 0.0.0.0:65017 : 11692
Maybe I'm missing something with my reading of netstat, but this seems unusually high.
This is a repeat issue. The only thing needed to evoke the massive number of ports listening is to start Chrome. Also, when I close Chrome, always at least one process is still running after I close the browser, and seems to run indefinitely (this is not the process associated with the large number of ports open - or at least not by itself - as the ports go away when I close the browser).
Does anyone know:
- If this is normal?
- If it's not normal, what could explain it?
- How I could find out more information about what is actually going on?
I have Wireshark installed, but it always seems to confound my understanding, and I haven't felt like trying to grok it yet. Also, Windows Event Log reveals nothing.
Note that this is not a duplicate of question Why does Google need so many ports open? as these ports are not dedicated to - and do not appear to be related to - any websites at all.
Thanks in advance.