10.48.0.19 is a WLAN Router with DNS Cache, WAN=> WLAN, LAN=>local
network. Normally the Router should cache all queries coming from the
LAN. I belive, the PC inside the LAN has a virus or trojan and floods
the WRT router.
I have contacted the user and after disconnet the PC behind, everything
is allright - crazy world.
best regard
Frank
Mark Andrews wrote:
I suspect you have a broken application on 10.48.0.19.
Mark
In message <70fo2df49pf...@mid.individual.net>, Frank Kirschner writes:
Hello,
since last night we log emtpty queries (approx. 4000 per seconds) like
this from a client in our LAN:
23-Feb-2009 13:20:15.516 queries: info: client 10.48.0.19#2048: query:
\(none\) IN A +
Additional there are also such log entries, (approx. 4000 per seconds):
23-Feb-2009 14:05:56.464 queries: info: client 10.48.0.19#2048: query:
luca.inetgate.net IN A +
What could be the resons for it? Should I investigate and limit the
packet flow by iptables/netfilter on port 53 of my BIND 9, actual
release for Centos 5.2
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