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World Community Grid Forums
Category: Support
Forum: BOINC Agent Support
Thread: Why is WCG port scanning |
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Thread Status: Active Total posts in this thread: 6
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Here is just one of many logs from my Firewall, and I do not understand why...
617 03/27/2008 00:52:07.464 Possible port scan dropped 129.33.89.133, 443, WAN, www.worldcommunitygrid.org 76.164.xx.xxx, 52001, WAN, servername.mydomain.com TCP scanned port list, 51981, 51981, 51979, 51979, 51977 |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Here is another one:
633 03/27/2008 00:41:12.304 Possible port scan dropped 129.33.89.133, 443, WAN, www.worldcommunitygrid.org 76.164.xx.xxx, 51721, WAN, servername.mydomain.com TCP scanned port list, 51709, 51709, 51713, 51713, 51715 Here is just one of many logs from my Firewall, and I do not understand why... 617 03/27/2008 00:52:07.464 Possible port scan dropped 129.33.89.133, 443, WAN, www.worldcommunitygrid.org 76.164.xx.xxx, 52001, WAN, servername.mydomain.com TCP scanned port list, 51981, 51981, 51979, 51979, 51977 Needless to say, I have changed the IP address and domain name. Thanks! |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
This isn't World Community Grid - it is the datacenter doing route optimisation. It is normal, and nothing to worry about.
It's explained in the help: http://www.worldcommunitygrid.org/help/viewTopic.do?shortName=netconn#78 |
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
Hi Mark,
----------------------------------------knreed posted about the same question a while back (there might even be a "Help" item on it).... can't find it momentarily but it is something with a periodic quality of service check by the provider to facilitate optimal routing. Dont know if it works on my net, but beyond the router my LAN is "INVISIBLY STEALTHED". cheers
WCG
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I understand the need to optimize routing, however doing it via port scans in the 50k+ port range is not a way I have ever seen before.
The firewall is doing it's job, it just concerns me why this traffic is happening. Thanks! |
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
Rung a bell... in my firewall permitted BOINC to use a random port in the range 50000-56xxx for LAN traffic. Also set up a rule for only the IP addresses of projects to which I'm attached to get thru to BOINC.... anyone else trying finds the door welded shut.
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WCG
Please help to make the Forums an enjoyable experience for All! |
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