Re: glub or authauthority NS is cached and used at a cache dns server?

2012-03-21 Thread Jeff Peng
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?

Re: Can I set TTL served to users in bind?

2012-03-09 Thread Jeff Peng
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

Re: Can I set TTL served to users in bind?

2012-03-09 Thread Jeff Peng
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:

A question for the reference

2012-03-05 Thread Jeff Peng
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 ;;

about the MX and NS values

2012-02-08 Thread Jeff Peng
I was thinking why RFC requires the values of MX and NS must be hostname not IP. Any glue? Thanks. ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org

Re: about the MX and NS values

2012-02-08 Thread Jeff Peng
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?

Re: Defense against a client?

2012-01-16 Thread Jeff Peng
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

Re: allow-query for a zone

2012-01-16 Thread Jeff Peng
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

allow-query for a zone

2012-01-15 Thread Jeff Peng
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; };

about the reference

2011-07-01 Thread Jeff Peng
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 ;;

Re: tell BIND the nameservers have been changed

2011-06-15 Thread Jeff Peng
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, Jeff Peng pen...@inbox.com

tell BIND the nameservers have been changed

2011-06-14 Thread Jeff Peng
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.

second nameserver with two IPs

2011-06-07 Thread Jeff Peng
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.

DNS is tainted

2011-06-07 Thread Jeff Peng
Hello, From the dig info below: C:\digdig +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:\digdig +nocmd www.nsbeta.info +noall +answer @ns1.google.com

querylog format

2011-06-06 Thread Jeff Peng
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

Re: querylog format

2011-06-06 Thread Jeff Peng
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, The querylog of BIND in my hosts is like: client