Re: separation of authoritative and recursive functions on internal networks

2016-02-15 Thread Grant Taylor
On 02/07/2016 04:12 PM, Reindl Harald wrote: Warn SOA MNAME entry WARNING: SOA MNAME (tncsrv06.tnetconsulting.net) is not listed as a primary nameserver at your parent nameserver! I know that this is a late reply, but I just ran across something that relates to this: Per section 6.8

Re: separation of authoritative and recursive functions on internal networks

2016-02-07 Thread Grant Taylor
On 02/07/2016 05:54 PM, Reindl Harald wrote: why? (I believe I answered your question in the subsequent paragraph. If not let me know and I'll try again.) that's not a reason for not list one of them as SOA None of the slaves are the SOA. (Further, I'm not aware of them having been con

Re: separation of authoritative and recursive functions on internal networks

2016-02-07 Thread Reindl Harald
Am 08.02.2016 um 01:00 schrieb Grant Taylor: On 02/07/2016 04:12 PM, Reindl Harald wrote: define OK Will it cause any problems if the slave server is not listed as an NS? no for internal use NS records don't matter at all because the only thing which matters is that the machines listed i

Re: separation of authoritative and recursive functions on internal networks

2016-02-07 Thread Reindl Harald
Am 08.02.2016 um 01:35 schrieb Grant Taylor: On 02/07/2016 04:55 PM, Mark Andrews wrote: .local doesn't have servers. Um Please forgive me while I look at many Small Business Server / poorly configured networks. That being said, I'll give you that it's not an official TLD. (Last I loo

Re: separation of authoritative and recursive functions on internal networks

2016-02-07 Thread Grant Taylor
On 02/07/2016 04:55 PM, Mark Andrews wrote: This proves robustness in the presence of link failures. Faster than ttl expiry of local zone changes (provided that notify messages are sent). I presume you are referring to the slave zone expiration timer, not normal record TTLs. No, I mean normal

Re: separation of authoritative and recursive functions on internal networks

2016-02-07 Thread Grant Taylor
On 02/07/2016 04:12 PM, Reindl Harald wrote: define OK Will it cause any problems if the slave server is not listed as an NS? for internal use NS records don't matter at all because the only thing which matters is that the machines listed in /etc/resolv.conf respond correctly I think I unde

Re: separation of authoritative and recursive functions on internal networks

2016-02-07 Thread Mark Andrews
In message <56b7cdfb.5070...@tnetconsulting.net>, Grant Taylor writes: > I know that this is an older thread, but I've been holding onto it for a > while with the intent of asking a related question. > > On 08/10/2015 12:12 PM, Mark Andrews wrote: > > Authoritative servers (listed in NS records) s

Re: separation of authoritative and recursive functions on internal networks

2016-02-07 Thread Reindl Harald
Am 08.02.2016 um 00:06 schrieb Grant Taylor: Does being a slave for a zone imply that a server is also listed as an NS? Or is it considered "okay" for a server to slave a zone without publishing that it does so? define OK - for internal use NS records don't matter at all because the only th

Re: separation of authoritative and recursive functions on internal networks

2016-02-07 Thread Grant Taylor
I know that this is an older thread, but I've been holding onto it for a while with the intent of asking a related question. On 08/10/2015 12:12 PM, Mark Andrews wrote: Authoritative servers (listed in NS records) shouldn't be recursive. I'm taking this to mean servers that have zones (proper

Re: separation of authoritative and recursive functions on internal networks

2016-01-31 Thread Chris Buxton
> On Jan 29, 2016, at 3:58 PM, Darcy Kevin (FCA) > wrote: > > Data obtained from the recursive function will never outrank authoritative > data of a master or a slave. Kevin, That's true, but authoritative servers also sometimes serve up referrals, sometimes including glue records. This data

Re: separation of authoritative and recursive functions on internal networks

2016-01-31 Thread Mark Andrews
Services > mathew@nau.edu > (928) 523-2960 > > > > > > > > > -Original Message- > From: on behalf of Mark Andrews > > Date: Monday, August 10, 2015 at 11:12 AM > To: Gary Carr > Cc: "bind-us...@isc.org" > Subject: Re: sepa

RE: separation of authoritative and recursive functions on internal networks

2016-01-29 Thread Darcy Kevin (FCA)
y, January 29, 2016 5:56 PM To: Mark Andrews Cc: bind-us...@isc.org Subject: Re: separation of authoritative and recursive functions on internal networks Howdy Mark, Can you please clarify the best practice for this? > Recursive servers (honouring RD=1) however can be authoritative for

Re: separation of authoritative and recursive functions on internal networks

2016-01-29 Thread Mathew Ian Eis
age- From: on behalf of Mark Andrews Date: Monday, August 10, 2015 at 11:12 AM To: Gary Carr Cc: "bind-us...@isc.org" Subject: Re: separation of authoritative and recursive functions on internal networks > >Authoritative servers (listed in NS records) shouldn't be re

Re: separation of authoritative and recursive functions on internal networks

2015-08-14 Thread Lawrence K. Chen, P.Eng.
On 2015-08-10 13:12, Mark Andrews wrote: Authoritative servers (listed in NS records) shouldn't be recursive. This prevents leakage of cache data. This provide consistent answers. The server also doesn't have to decide what type of answer to give (recursive vs authoritative). Glue doesn't ge

Re: separation of authoritative and recursive functions on internal networks

2015-08-10 Thread Mark Andrews
Authoritative servers (listed in NS records) shouldn't be recursive. This prevents leakage of cache data. This provide consistent answers. The server also doesn't have to decide what type of answer to give (recursive vs authoritative). Glue doesn't get overridden by answers, etc. Recurive serv

Re: separation of authoritative and recursive functions on internal networks

2015-08-10 Thread John Miller
On Wed, Aug 5, 2015 at 10:18 AM, Gary Carr wrote: > > Overall, is breaking this function out - internally - really worth it? > I can offer a personal testimonial on the management aspects of this: A couple of years back, we made the switch from combined authoritative/recursive servers to recursi

RE: separation of authoritative and recursive functions on internal networks

2015-08-10 Thread Tony Finch
Darcy Kevin (FCA) wrote: > "Separate authoritative and recursive functions" is really a simplistic > approach to a complex challenge. I think a better approach is to make > both the published-authoritative function and the recursive-resolution > functions robust enough *in*and*of*themselves* so t

RE: separation of authoritative and recursive functions on internal networks

2015-08-05 Thread Darcy Kevin (FCA)
"Separate authoritative and recursive functions" is really a simplistic approach to a complex challenge. I think a better approach is to make both the published-authoritative function and the recursive-resolution functions robust enough *in*and*of*themselves* so that there is no value to an atta

Re: separation of authoritative and recursive functions on internal networks

2015-08-05 Thread Heiko Richter
Am 05.08.2015 um 16:18 schrieb Gary Carr: > Hello, > > I understand the importance of separating authoritative and recursive > functions on public facing systems. How crucial is it on internal > systems? > > My clients today resolve against internal servers that do recursion > and also hold autho