Unsolicited TCP port connection

Message boards : Questions and problems : Unsolicited TCP port connection
Message board moderation

To post messages, you must log in.

AuthorMessage
David C!

Send message
Joined: 11 Nov 09
Posts: 4
United States
Message 35893 - Posted: 27 Nov 2010, 6:26:59 UTC

I receive several messages daily from my firewall such as "a computer at einstein.phys.uwm.edu has attempted an unsolicited connection to TCP port 3808 on your computer". Can anyone shed light on why and whether this is legitimate? My projects seem to operate fine even though these attempts are intercepted and blocked by my firewall.
ID: 35893 · Report as offensive
Profile KSMarksPsych
Avatar

Send message
Joined: 30 Oct 05
Posts: 1239
United States
Message 35895 - Posted: 27 Nov 2010, 9:06:38 UTC - in response to Message 35893.  

This would be better asked at E@H.
Kathryn :o)
ID: 35895 · Report as offensive
SekeRob2

Send message
Joined: 6 Jul 10
Posts: 585
Italy
Message 35898 - Posted: 27 Nov 2010, 16:29:18 UTC - in response to Message 35893.  

Something that might have to do with traffic quality control finding best routes. WCG does this at least. Rarely hear someone complaining and is addressed in their help pages.
Why did my firewall just log an attempt to access my computer right after I visited the World Community Grid website?
Some users have noticed, via their software firewall, that trace-route scans apparently coming from IBM domains occur after communicating with the World Community Grid server. These are in fact normal and not someone trying to break into your machine. These are used to measure which of several paths through the Internet give the best communication performance to your machine. The servers are located in a massive hosting center, which regularly optimizes traffic between users and the servers by shifting communications among several Internet providers, depending on the destination and trace-route measurements.
ID: 35898 · Report as offensive
scarecrow

Send message
Joined: 28 Nov 05
Posts: 15
United States
Message 35906 - Posted: 28 Nov 2010, 11:28:57 UTC

I asked the same question a while ago. I still get "New Not Syn" packets regularly from BOINC related sites that I interact with.
ID: 35906 · Report as offensive
Profile ChertseyAl
Avatar

Send message
Joined: 17 Jul 09
Posts: 107
United Kingdom
Message 35908 - Posted: 28 Nov 2010, 19:33:58 UTC - in response to Message 35906.  

I still get "New Not Syn" packets regularly from BOINC related sites that I interact with.


I find NFS@Home is the worst project for being blocked by my firewall.

Al.
ID: 35908 · Report as offensive

Message boards : Questions and problems : Unsolicited TCP port connection

Copyright © 2024 University of California.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.