Re: A lot of queries from a customer.

2012-07-17 Thread Paul Wouters
On Tue, 17 Jul 2012, Drunkard Zhang wrote: I don´t find the ways to limit of queries per minutes on this customer Is it possible in Bind9 a filtering these queries, to limit the responses We use iptables doing this, which works fine for us: iptables -A INPUT -p udp -m state --state NEW -m conn

Re: A lot of queries from a customer.

2012-07-17 Thread Drunkard Zhang
2012/7/17 Fr34k : > We have been monitoring the same. > > Google found an unrelated, yet similar, issue a few years ago: > http://pages.cs.wisc.edu/~plonka/netgear-sntp/#ToC16 > > >> Hi, >> >> Recently, I have been watching on one DNS server a lot of

Re: A lot of queries from a customer.

2012-07-17 Thread Fr34k
>Subject: A lot of queries from a customer. > > >> Hi, >> >> Recently, I have been watching on one DNS server a lot of queries from a >> customer to ¨time-b.netgear.com¨  (Maybe a Netgear´s NTP server). >> >> About 1000 queries per minute. >>

Re: A lot of queries from a customer.

2012-06-28 Thread Tony Finch
Rafael Molina wrote: > > I don´t find the ways to limit of queries per minutes on this customer > > Is it possible in Bind9 a filtering these queries, to limit the responses ? There is a patch for BIND which can help: http://www.redbarn.org/dns/ratelimits Tony. -- f.anthony.n.finchhttp://

A lot of queries from a customer.

2012-06-28 Thread Rafael Molina
Hi, Recently, I have been watching on one DNS server a lot of queries from a customer to ¨time-b.netgear.com¨ (Maybe a Netgear´s NTP server). About 1000 queries per minute. tail -f /var/log/bind9-query.log | grep time-b.netgear.com 21-Jun-2012 12:50:53.003 client 186.14.xx.xx#32770