Re: how to reduce unnecessary lots of AAAA queries?

2012-03-03 Thread Mark Andrews
In message , MontyRee writes: > > Hello, all. > > > I have operated some centos 5.3 (x86_64) linux servers. > when I tcpdump the dns query, I can see lots of AAA queries from my linux s= > ervers. > and ServFail response from DNS server. = If you are getting SERVFAIL responses there usually is

Re: A few conceptual question about dnssec.

2012-03-03 Thread Mark Andrews
In message , Kevin Oberman writes: > On Fri, Mar 2, 2012 at 11:17 PM, dE . wrote: > > On 02/18/12 00:36, Gaurav kansal wrote: > > > > > > > > > > > > Firstly, where do we get the public key for the DS records? > > > > Can you clarify your question??? > > > > > > > > Second, why do I get multiple

Re: A few conceptual question about dnssec.

2012-03-03 Thread Kevin Oberman
On Fri, Mar 2, 2012 at 11:17 PM, dE . wrote: > On 02/18/12 00:36, Gaurav kansal wrote: > > > > > > Firstly, where do we get the public key for the DS records? > > Can you clarify your question??? > > > > Second, why do I get multiple DS records as response? – > > You will always get a 2 DS Records

how to reduce unnecessary lots of AAAA queries?

2012-03-03 Thread MontyRee
Hello, all. I have operated some centos 5.3 (x86_64) linux servers. when I tcpdump the dns query, I can see lots of AAA queries from my linux servers. and ServFail response from DNS server. surely, I don't use ipv6 and "NETWORKING_IPV6=no" was configured at /etc/sysconfig/network file. How