Re: lists.isc.org rDNS failed, DNSSEC?

2012-02-29 Thread Mark Andrews
In message 1330508848.24108.140661042811...@webmail.messagingengine.com, nudge writes: A thought regarding the pros and cons of DNSSEC that I don't recall being mentioned. There are a whole set of things you can do once you have secure DNS. You just have to use your imagination. This one

RE: lists.isc.org rDNS failed, DNSSEC?

2012-02-28 Thread Marc Lampo
, Marc Lampo Security Officer EURid (for .eu) -Original Message- From: michoski [mailto:micho...@cisco.com] Sent: 24 February 2012 06:01 AM To: vinny_abe...@dell.com; kob6...@gmail.com; ma...@isc.org Cc: bind-us...@isc.org Subject: Re: lists.isc.org rDNS failed, DNSSEC? On 2/23/12 8:48 PM

Re: lists.isc.org rDNS failed, DNSSEC?

2012-02-28 Thread /dev/rob0
On Tue, Feb 28, 2012 at 01:16:16PM +0100, Marc Lampo wrote: Please allow a, partly/mostly, non-technical feedback as security officer for a tld (.eu) First of all : I do not deny DNSSEC adds a challenge for administrators. They must understand that adding this additional SECurity aspect,

Re: lists.isc.org rDNS failed, DNSSEC?

2012-02-28 Thread michoski
On 2/28/12 9:26 AM, /dev/rob0 r...@gmx.co.uk wrote: On Tue, Feb 28, 2012 at 01:16:16PM +0100, Marc Lampo wrote: First of all : I do not deny DNSSEC adds a challenge for administrators. They must understand that adding this additional SECurity aspect, will generate extra work

Re: lists.isc.org rDNS failed, DNSSEC?

2012-02-28 Thread Evan Hunt
I suppose there are different classes of failures; unfortunately on the resolver, there is only one result, SERVFAIL, to cover all. It would be better if there was a way to distinguish the oops, admin bungled DNSSEC errors from the ones which are more likely to be indicative of spoofing.

Re: lists.isc.org rDNS failed, DNSSEC?

2012-02-28 Thread Mark Andrews
In message cb725c9f.24ec1%micho...@cisco.com, michoski writes: Doing DNSSEC verification in 2012 is lopsided the other way. You cannot resolve the names you need sometimes. You're probably not receiving any actual protection from spoofing. I feel similarly. I do see risk in the non

Re: lists.isc.org rDNS failed, DNSSEC?

2012-02-28 Thread /dev/rob0
On Tue, Feb 28, 2012 at 06:28:54PM +, Evan Hunt wrote: the one that bites us most often is that of the expired RRSIG. If we could log that but go ahead and accept the data, most of the pain would stop. BIND has this: dnssec-accept-expired yes; Note that it opens you to replay

Re: lists.isc.org rDNS failed, DNSSEC?

2012-02-23 Thread Mark Andrews
There was a issues with the delegation of some zones. NS records were not added to the parent zone when they should have been but the scripts which sign the zones added DS records which caused the parent zone not to be resigned. The signatures for the parent zone eventually expired which caused

Re: lists.isc.org rDNS failed, DNSSEC?

2012-02-23 Thread Kevin Oberman
On Thu, Feb 23, 2012 at 2:47 PM, Mark Andrews ma...@isc.org wrote: There was a issues with the delegation of some zones.  NS records were not added to the parent zone when they should have been but the scripts which sign the zones added DS records which caused the parent zone not to be

RE: lists.isc.org rDNS failed, DNSSEC?

2012-02-23 Thread Vinny_Abello
: lists.isc.org rDNS failed, DNSSEC? On Thu, Feb 23, 2012 at 2:47 PM, Mark Andrews ma...@isc.org wrote: There was a issues with the delegation of some zones.  NS records were not added to the parent zone when they should have been but the scripts which sign the zones added DS records which caused

Re: lists.isc.org rDNS failed, DNSSEC?

2012-02-23 Thread michoski
On 2/23/12 8:48 PM, vinny_abe...@dell.com vinny_abe...@dell.com wrote: I kind of had the same thought... If ISC had a DNS outage due to expired signatures of a zone, what chance do I have in successfully deploying and maintaining DNSSEC for my zones? Sure, everyone makes mistakes, but I think

Re: lists.isc.org rDNS failed, DNSSEC?

2012-02-23 Thread Kevin Oberman
On Thu, Feb 23, 2012 at 9:00 PM, michoski micho...@cisco.com wrote: On 2/23/12 8:48 PM, vinny_abe...@dell.com vinny_abe...@dell.com wrote: I kind of had the same thought... If ISC had a DNS outage due to expired signatures of a zone, what chance do I have in successfully deploying and