于 2012-2-7 15:09, sasa sasa 写道:
I got a server with 16GB memory, want to install 2 BIND on CentOS, one cache
only and another authoritative.
Is it better to install 2 OS virtually and run BIND in them or run 2 instances
of BIND on the same OS? I mean what is the best practice to take advantage
I was thinking why RFC requires the values of MX and NS must be hostname
not IP.
Any glue? Thanks.
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于 2012-2-9 15:27, Mark Andrews 写道:
When you serve 10 zones do you want to update 1 address
record or 10 NS record on a address change?
When you serve 10 mail domains do you want to update 1
address record or 10 MX records on a address change?
Yup
Hello,
Please see this case:
$ dig funnygamesite.com @k.gtld-servers.net
; <<>> DiG 9.7.3 <<>> funnygamesite.com @k.gtld-servers.net
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 35540
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 2
于 2012-3-6 10:23, Spain, Dr. Jeffry A. 写道:
I tested this by capturing network traffic on a bind 9.9.0 recursive resolver.
The commands 'rndc flush' followed by 'dig @localhost funnygamesite.com'
resulted in the following:
1. A query to m.gtld-servers.net.
2. The same referral response that you
于 2012-3-9 16:11, Drunkard Zhang 写道:
I got some bind servers doing iteration resolution, and return the
results to users. But I found that some names got too big TTLs, whose
RRs can not be replaced correctly by new RRs in time. This leads to
user‘s blame, we have to flush the caches by hand, and
于 2012-3-9 17:20, Cathy Almond 写道:
Many ISP's caching DNS servers do this stuff.
> AFAIK there is not such an option for that, but you can do it from
> BIND's source.
max-cache-ttl ?
Thanks Cathy for pointing out that.
From what googled:
http://www.menandmice.com/knowled
You might want to read my this blog；
http://www.nsbeta.info/archives/115
HTH
于 2012-3-21 15:07, Felix New 写道:
when i dumpdb from the cache dns, some domain's ns records are glue
DNS, and others are authauthority.
The TTL are different. which type is used in Cache DNS?
___
Hello,
The querylog of BIND in my hosts is like:
client 58.240.56.18#16768: query: s18.mhxx.game.yy.com IN A -EDC
For the last part, I know the '-' means non-recursion，'E' means EDNS.
But what are the 'D' and 'C' flags?
thanks.
Send
Thanks michael.
That's right for me.
> -Original Message-
> From: mich...@rancid.berkeley.edu
> Sent: Mon, 06 Jun 2011 20:41:03 -0700
> To: pen...@inbox.com
> Subject: Re: querylog format
>
> On 6/6/11 8:09 PM, Jeff Peng wrote:
>> Hello,
>>
>&
Hello,
My second nameserver has tow IPs, for example,
61.144.56.1
61.144.57.1
(They are in different CIDRs.)
and my ns2.example.com was pointed to these two IPs.
Will this cause problems, for example, the duplicated notification or
zone-transfer?
Thanks in advance.
__
Hello,
>From the dig info below:
C:\dig>dig +nocmd www.nsbeta.info +noall +answer @ns1.google.com
www.nsbeta.info.3497IN CNAME nsbeta.info.
nsbeta.info.2434IN A 74.117.232.204
C:\dig>dig +nocmd www.nsbeta.info +noall +answer @ns1.google.com
www.nsbet
Hello,
Once I changed the IP address for NS records, for example,
example.com. IN NS ns1.myzone.com.
example.com. IN NS ns2.myzone.com.
I changed ns[1-2].myzone.com to new IPs in myzone.com's DNS, then how to let
BIND for example.com to know the NS has been changed?
Thanks.
__
I remember there is a rndc option, but not sure.
> -Original Message-
> From: bortzme...@nic.fr
> Sent: Wed, 15 Jun 2011 09:06:54 +0200
> To: pen...@inbox.com
> Subject: Re: tell BIND the nameservers have been changed
>
> On Tue, Jun 14, 2011 at 08:41:50PM -0800
Hello,
Please see this reference:
$ dig mydots.net @j.gtld-servers.net
; <<>> DiG 9.4.2-P2.1 <<>> mydots.net @j.gtld-servers.net
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 41902
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 2
Hi,
If I just want to disable any client to query for a zone, but keep that
zone in the config file (maybe later I will enable it to be accessable),
can I just set:
allow-query { none; };
in the zone section?
zone "example.com" {
type master;
file "example.com.db";
allow-query { none;
于 2012-1-16 18:19, Tom Schmitt 写道:
My question:
Is there any possibility in Bind to give a quoata to a client? e.g. that from a
given IP no more than houndred queries per second are allowed and the rest is
to be blackholed.
That way only the client causing the load would have a problem but not
于 2012-1-17 1:58, Warren Kumari 写道:
Just out of interest, why wouldn't you just comment out the zone stanza?
Would cut down on memory usage, load time, etc…
I'm sure you have a use case, just a wondering…
Well, my dns manage system (dnsbed.com) requires a "zone pause" feature.
When user click
Well, my dns manage system (dnsbed.com) requires a "zone pause" feature.
> When user click the "pause" button, the zone should be stopped for
> resolving, but the config and records should be kept.
How can you tell the difference?
what differenct do you mean?
__
Whether you set allow-query to none, or remove the zone statement,
clients will get an error when they try to query the zone.
There is a difference when you develop a web interface for DNS system.
A user can "pause" the domain from web interface, if we remove the zone
and records from BIND fi
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