RE: Seeking Advice on DNSSEC Algorithm Rollover

2012-06-25 Thread Tony Finch
Spain, Dr. Jeffry A. wrote: > > My experience with changing the timing metadata or removing the key > files is that named issues a warning like the following: zone /IN: > Key // missing or inactive and has no > replacement: retaining signatures. In this circumstance none of the > RRSIGs or NSECs a

RE: Seeking Advice on DNSSEC Algorithm Rollover

2012-06-25 Thread Spain, Dr. Jeffry A.
>> My experience with changing the timing metadata or removing the key >> files is that named issues a warning like the following: zone /IN: >> Key // missing or inactive and has no >> replacement: retaining signatures. In this circumstance none of the >> RRSIGs or NSECs are removed. They sit the

Re: Understanding cause of DNS format error (FORMERR)

2012-06-25 Thread Tony Finch
It looks to me like this is an EDNS bug. I am querying the authoritative server directly, with no firewalls in the way. The FORMERR is coming from the authoritative server not from BIND. I get the same result over IPv4 and IPv6. They also have a bug in their NXDOMAIN logic: extranet.microsoft.com

Re: Understanding cause of DNS format error (FORMERR)

2012-06-25 Thread Tony Finch
Carsten Strotmann (private) wrote: > > The FORMERR I'm seeing is also quite odd, as it has the "AD" flag set, > which should normally not appear in an error type of response, but > might be caused by a mangled DNS packet: I think it is echoing the AD bit in the query. ; <<>> DiG 9.9.1-P1 <<>> +

Re: Understanding cause of DNS format error (FORMERR)

2012-06-25 Thread Sam Wilson
In article , Tony Finch wrote: > It looks to me like this is an EDNS bug. ... There's some kind of delegation bug as well. If I query dns1[0-3].one.microsoft.com for SOA and NS for partners.extranet.microsoft.com you get sensible answers though the origin host is different for each server q

Reverse zones best practices

2012-06-25 Thread nex6
Hi all, look for some info on best practices for reverse zones. I have, a pretty big IP space and alot of reverse zones are not created. I want to clean it up, a few people that dont really know DNS are thinking of "super netting" eg a top level 10.0.0.0/16 sorta thing. but we have 100s of d

CNAME Rules

2012-06-25 Thread Srinivas Krishnan
The RFC rules on CNAMEs is fairly tight but I am seeing an increasing amount of traffic with misconfigured CNAMEs some of which are accepted by BIND as valid responses. The examples capture three trends, note these are actual responses: 1) Example-1: CNAME in the additional section necessary to fi

Re: Reverse zones best practices

2012-06-25 Thread David Dowdle
I strongly recommend splitting on /8 /16 and /24 boundries. With the number of zones you are talking about, doing anything else will get very confusing very quickly. If a netblock is larger than a /24, put at the top and bottom of each /24 a comment lile explaining what size it is For examp

Re: CNAME Rules

2012-06-25 Thread Chuck Swiger
On Jun 25, 2012, at 2:13 PM, Srinivas Krishnan wrote: > The RFC rules on CNAMEs is fairly tight but I am seeing an increasing > amount of traffic with misconfigured CNAMEs some of which are accepted > by BIND as valid responses. The examples capture three trends, note > these are actual responses:

Re: Moving DNS out of non-cooperative provider

2012-06-25 Thread John Miller
We've just resolved this amicably--I'd missed the commercial.service@rcn.comaddress, but was contacted off-list by one of RCN's engineers, who read this thread and has removed our domain from their nameservers. He was quite helpful. No cease-and-desist letter needed--not by a long shot! John

Re: CNAME Rules

2012-06-25 Thread Srinivas Krishnan
Chuck, You are using a caching resolver to check the responses and you only see response after its been resolved by Google's DNS server. Try dig @ns1.wordpress.com after12.failblog.org. to see the actual records that you would receive if you were a DNS server performing an authoritative query t

RE: Reverse zones best practices

2012-06-25 Thread Brad Bendily
I don't know about best practice in this case, but I decided to put our reverse entries into one "super netting" file as you call it. We had the same problem that a lot of reverse entries were missing, so I wrote a script to parse the forward file and create the reverse. Then I incorporated that

Re: CNAME Rules

2012-06-25 Thread Mark Andrews
In message , Srinivas Krishnan writes: > The RFC rules on CNAMEs is fairly tight but I am seeing an increasing > amount of traffic with misconfigured CNAMEs some of which are accepted > by BIND as valid responses. The examples capture three trends, note > these are actual responses: Name

Re: CNAME Rules

2012-06-25 Thread Chuck Swiger
On Jun 25, 2012, at 2:34 PM, Srinivas Krishnan wrote: > You are using a caching resolver to check the responses and you only see > response after its been resolved by Google's DNS server. The overwhelming majority of Internet users are using caching resolvers running at their ISP, employer, etc.

Re: CNAME Rules

2012-06-25 Thread Srinivas Krishnan
Mark, Is the first parsing step over both Answer and Additional sections, I was under the impression that "Named" parses the response into RRSets from the Answer section and if there is a CNAME chain both within the same zone it follows the chain as well. But no additional sections are checked

Re: CNAME Rules

2012-06-25 Thread Srinivas Krishnan
Chuck, I am talking from the point of view of a DNS server not a client resolver. Anyways note that the entire CNAME chain is from the same wordpress zone, so the chain should be followed without requiring an additional query and there is no need for trying to short circuit the process by addin

Duplicates in newsgroup gateway

2012-06-25 Thread Barry Margolin
I read bind-users through the comp.protocols.dns.bind newsgroup. I'm seeing lots of duplicate posts. Most of the replies in the "CNAME Rules" thread showed up twice. Is there a problem with the gateway? -- Barry Margolin Arlington, MA ___ Please visi

Re: Duplicates in newsgroup gateway

2012-06-25 Thread David Ford
it's posted 2x, slightly different. To: comp.protocols.dns.b...@googlegroups.com To: comp-protocols-dns-b...@isc.org both cc the newsgroup -david On 06/25/2012 06:11 PM, Barry Margolin wrote: I read bind-users through the comp.protocols.dns.bind newsgroup. I'm seeing lots of duplicate posts.

Re: Duplicates in newsgroup gateway

2012-06-25 Thread Dan Mahoney
On Mon, 25 Jun 2012, David Ford wrote: > it's posted 2x, slightly different. > > To: comp.protocols.dns.b...@googlegroups.com > To: comp-protocols-dns-b...@isc.org I suspect this is an artifact of people starting a thread one place and cc'ing one reflector or the other. I'll see if I can rea