[olug] port scan from dns?????????

Phil Brutsche pbrutsch at creighton.edu
Thu Feb 15 05:27:06 UTC 2001


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A long time ago, in a galaxy far, far way, someone said...

> I wouldn't be concerned with it.  It may be a misconfigured DNS server
> or some feature if it's MS-DNS.  Here's some nice fw rules I came across
> today though:
>
> http://www.linux.com/tuneup/database.phtml/Networking/2192.html

Yes, it's nothing to worry about.  But no, it's not from a misconfigured
DNS server, nor is it from a MS-DNS server.

Sometimes, after a connection is closed, there are some packets still on
the way.

These are those leftovers.

That's my best explanation, at least :)  Someone with a better
understanding of IP networking would be able to explain it better.

> > Feb 14 22:16:06 p120 kernel: Packet log: input DENY ppp0 PROTO=17 198.83.19.241:53 209.252.176.29:1025 L=120 S=0x00 I=10684 F=0x0000 T=26 (#13)
> > Feb 14 22:16:11 p120 kernel: Packet log: input DENY ppp0 PROTO=17 198.83.19.244:53 209.252.176.29:1025 L=120 S=0x00 I=50131 F=0x0000 T=60 (#13)
> > Feb 14 22:16:12 p120 kernel: Packet log: input DENY ppp0 PROTO=6 208.216.183.15:80 209.252.176.29:4634 L=48 S=0x00 I=21188 F=0x4000 T=52 (#13)

- -- 
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Phil Brutsche					pbrutsch at creighton.edu

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