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536 posts

Ultimate Geek

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# 141407 11-Mar-2014 20:17
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Recently enabled e-mail monitoring of my current router and have been surprised at the amount of Port 53 traffic i have received, i have then calculated it out and wanted some feed back as to how good my guess was:

So 228 Port attempts at 512 bytes a minuet times 60 for an hour times 24 for a day times 28 for a billing cycle equals 4706795520bytes or 4.7gig ISH

would that sound about right??

if so pity i cant actually uses the 4.7gig for real data. Interested to hear peoples thoughts on this.




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19282 posts

Uber Geek
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  # 1003002 11-Mar-2014 20:30
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What router? Search " Port 53 open " here on Geekzone



536 posts

Ultimate Geek

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  # 1003004 11-Mar-2014 20:38
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johnr: What router? Search " Port 53 open " here on Geekzone

Its just a Dlink DI-524, i searched for Port 53 open and none explained the packet size of a dns/ port53 request that i could see, and to my knowledge the router is not serving dns on the wan side.




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536 posts

Ultimate Geek

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  # 1003011 11-Mar-2014 20:53
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www.whatsmyip.org/port-scanner/server/ All reports Timed out (Port53)
www.canyouseeme.org/ Error: I could not see your service on x.x.x.x on port (53) Reason: Connection timed out

So two sites suggest i have no open port

 

Log Excert
Tue Mar 11 19:08:58 2014 Unrecognized attempt blocked from 16.103.46.228:19379 to x.x.x.x UDP:53




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536 posts

Ultimate Geek

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  # 1003015 11-Mar-2014 20:59
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Back to my other question is how big is a DNS Request Packet ?




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563 posts

Ultimate Geek


  # 1003035 11-Mar-2014 21:38
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phantomdb: Back to my other question is how big is a DNS Request Packet ?


See https://lists.isc.org/pipermail/bind-users/2007-September/067999.html for a quick discussion that is relevant.

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