are these BIND errors....

[Barry Margolin]

In article <9hfvba$3f5 at pub3.rc.vix.com>,
Gary Kline  <kline at ns1.thought.org> wrote:
>
>On Thu, Jun 28, 2001 at 02:28:44PM -0400, James A Griffin wrote:
>> 
>> Gary Kline wrote:
>> > 
>> > On Thu, Jun 28, 2001 at 01:27:51PM -0400, James A Griffin wrote:
>> > > Gary Kline wrote:
>> [snip]
>> > > >
>> > > > Jun 27 22:18:15 tao /kernel: Connection attempt to UDP
>216.39.168.248:53 from 216.136.204.119:53
>> > > > Jun 27 22:18:15 tao /kernel: Connection attempt to UDP
>127.0.0.1:512 from 127.0.0.1:1123
>> > > > Jun 27 22:21:09 tao /kernel: Connection attempt to UDP
>216.39.168.248:53 from 207.224.243.50:53
>> > > > Jun 27 22:21:09 tao /kernel: Connection attempt to UDP
>216.39.168.248:53 from 207.224.243.50:53
>> > > >
>> > >
>> > > No, it is some form of packet filter (firewall) or intrusion detection
>> > > system (IDS) telling you about events.  Port 53 is named and port
>> > > 512/udp is biff.
>> > >
>> > 
>> >         Strange thing is that I have no packet filtering going on
>> >         (( at least none that I  have installed so far!)).
>> > 
>> >         What IDS could be reporting thses kind of Connection attempts?
>> > 
>> 
>> I do not recognize the message format; use 'snort' myself.  I thought it
>> might be 'portsentry', but assuming the documentation is accurate, it
>> uses a different format.  Could it be from tcpwrappers or the new
>> version (IIRC xinitd)? What operating system are you running?
>> 
>
>	I just upgraded to FreeBSD 4.3.  In named.conf, I have lots of
>	logging {} categories set.  Probably these attempt messages are
>	coming from there.   I haven't grep'd thru the BIND9 code...
>	yet.
>

They're not coming from BIND at all.  The log messages say "/kernel", not
"named".  That's why they seem to be related to a packet filter of some
kind.

-- 
Barry Margolin, barmar at genuity.net
Genuity, Burlington, MA
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