Re: Order and Preference Priority in DNS Responses
Am 03.08.2015 um 13:38 schrieb Harshith Mulky: I wanted to understand how Order and Preference Values have an impact on the answers Received from the DNS Server I am asking because, I have 4 records for NAPTR Query, as below carrier1.com 86400 IN NAPTR 50 50“s” “SIPS+D2T” ““ “_sips._tcp.carrier1.com.” carrier1.com 86400 IN NAPTR 90 50“s” “SIP+D2T”““ “_sip._tcp.carrier1.com.” carrier1.com 86400 IN NAPTR 100 100 “s” “SIP+D2U” ““ “_sip._udp.carrier1.com.” carrier1.com 86400 IN NAPTR 120100 “s” “SIPS+D2U” ““ “_sip._tcp.carrier1.com.” I am expecting to receive the answer as _sip._udp.carrier1.com but i receive _sip._tcp.carrier1.com How could I change this? Hi there! That exactly was the query you sent to the server? Why would you expect to recieave the records with priority 100 and preference 100? BTW: As your records all have a different priority (first number) you should sett the preference to 0 in all records. This field is only used to do load-balancing when you have two or more records with the same priority. ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: ERROR : - writeable file 'data/udalgurijudiciarygov.hosts': already in use: /etc/nicnet2007.govdomain:15424 - loading configuration: failure
Am 03.08.2015 um 08:08 schrieb Mukund Sivaraman: Hi Prakash On Mon, Aug 03, 2015 at 10:14:50AM +0530, prakash wrote: Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15424: writeable file 'data/udalgurijudiciarygov.hosts': already in use: /etc/nicnet2007.govdomain:15424 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15431: writeable file 'data/bodolandgov.hosts': already in use: /etc/nicnet2007.govdomain:15431 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15445: writeable file 'data/cexhyd2gov.hosts': already in use: /etc/nicnet2007.govdomain:15445 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15452: writeable file 'data/bmcsagaredu.hosts': already in use: /etc/nicnet2007.govdomain:15452 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15459: writeable file 'data/crckozhikodegov.hosts': already in use: /etc/nicnet2007.govdomain:15459 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15466: writeable file 'data/wblcgov.hosts': already in use: /etc/nicnet2007.govdomain:15466 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15473: writeable file 'data/precursorsncbgov.hosts': already in use: /etc/nicnet2007.govdomain:15473 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15480: writeable file 'data/icggov.hosts': already in use: /etc/nicnet2007.govdomain:15480 Aug 3 09:59:34 govindnsvm named[7436]: loading configuration: failure Aug 3 09:59:34 govindnsvm named[7436]: exiting (due to fatal error) See if you have used these data/*.host as values with the file option multiple times in your named configuration. It may be that you have included a config snippet multiple times. Mukund Why use the file option at all on a slave? Of course it is possible, but why should one force the file name of a slave zone? That configuration option is just needed on the master. Bind will assign a filename for your slave zone on its own and you can be sure it will not assign the same name twice ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Order and Preference Priority in DNS Responses
Am 03.08.2015 um 13:44 schrieb Reindl Harald: Am 03.08.2015 um 13:38 schrieb Harshith Mulky: I wanted to understand how Order and Preference Values have an impact on the answers Received from the DNS Server I am asking because, I have 4 records for NAPTR Query, as below carrier1.com 86400 IN NAPTR 50 50“s” “SIPS+D2T” ““ “_sips._tcp.carrier1.com.” carrier1.com 86400 IN NAPTR 90 50“s” “SIP+D2T”““ “_sip._tcp.carrier1.com.” carrier1.com 86400 IN NAPTR 100 100 “s” “SIP+D2U” ““ “_sip._udp.carrier1.com.” carrier1.com 86400 IN NAPTR 120100 “s” “SIPS+D2U” ““ “_sip._tcp.carrier1.com.” I am expecting to receive the answer as _sip._udp.carrier1.com but i receive _sip._tcp.carrier1.com randomly https://en.wikipedia.org/wiki/Round-robin_DNS Just saying randomly is not quite correct. At least not always. Depends on the setting of rrset-order. ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: ERROR : - writeable file 'data/udalgurijudiciarygov.hosts': already in use: /etc/nicnet2007.govdomain:15424 - loading configuration: failure
Am 03.08.2015 um 16:50 schrieb Heiko Richter: Am 03.08.2015 um 08:08 schrieb Mukund Sivaraman: Hi Prakash On Mon, Aug 03, 2015 at 10:14:50AM +0530, prakash wrote: Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15424: writeable file 'data/udalgurijudiciarygov.hosts': already in use: /etc/nicnet2007.govdomain:15424 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15431: writeable file 'data/bodolandgov.hosts': already in use: /etc/nicnet2007.govdomain:15431 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15445: writeable file 'data/cexhyd2gov.hosts': already in use: /etc/nicnet2007.govdomain:15445 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15452: writeable file 'data/bmcsagaredu.hosts': already in use: /etc/nicnet2007.govdomain:15452 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15459: writeable file 'data/crckozhikodegov.hosts': already in use: /etc/nicnet2007.govdomain:15459 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15466: writeable file 'data/wblcgov.hosts': already in use: /etc/nicnet2007.govdomain:15466 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15473: writeable file 'data/precursorsncbgov.hosts': already in use: /etc/nicnet2007.govdomain:15473 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15480: writeable file 'data/icggov.hosts': already in use: /etc/nicnet2007.govdomain:15480 Aug 3 09:59:34 govindnsvm named[7436]: loading configuration: failure Aug 3 09:59:34 govindnsvm named[7436]: exiting (due to fatal error) See if you have used these data/*.host as values with the file option multiple times in your named configuration. It may be that you have included a config snippet multiple times. Why use the file option at all on a slave? Of course it is possible, but why should one force the file name of a slave zone? That configuration option is just needed on the master. Bind will assign a filename for your slave zone on its own and you can be sure it will not assign the same name twice and will it remove the file also automatically if the zone no longer exists in the config? our backends as example are naming the zones domain.tld.dns on master and slave and if we remove a domain the files on both are deleted too before reload named signature.asc Description: OpenPGP digital signature ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: ERROR : - writeable file 'data/udalgurijudiciarygov.hosts': already in use: /etc/nicnet2007.govdomain:15424 - loading configuration: failure
This unfortunately looks like the thread for me to jump on to I missed installing the last two 9.9...-p# patches, first time I built everything and was pretty much ready to do it, and then forgot all about it due to health issues. More recent one...I had got it built for Solaris x64 and was about to work on building it for Solaris SPARC when the most recent one appeared. This one carried a much strong get things patched (to me at first, then higher ups started jumping around...) But, it turned out to be a huge mess to upgrade. The first time I ran into this error, were some really old mistakes where the admin had copy and pasted a bunch of similar zones...and missed adjusting some of the files. Since on the master side they all come from the same fileit probably didn't cause any noticeable problems for the slaves or clients. However, install upgrade on our master server...knocked it out, so I'm here looking to see what the proper fix for my situation is. Looking for a valid easy fix here ;) Partly because coming soon they're going to demolish the DNS infrastructure that I got saddled with and feel like I done a pretty good job at re-engineering it to meet all the demands of it. But, I'm the last legacy unix systems administrator here Anyways...the problem is because we had turned out existing master server into doing split/stealth (started out stealth...) DNS, while having it continue to serve as slave to delegated subdomains. So that those subdomains are propagated to our external facing slave servers. So that's where the problem comes inthe internal authoritative+ nameservers having the master collect secondary zone data from them...on the Internal view. But, then having to send that information to nameservers that hit the external view of the master. So, until a few hours agoit was include a file containing all the delegated (sub)domains into both viewscausing both sides to be working off of the same file. WHich seemed to work fine. As only one side is getting updates, the other side is just to feed our outside facing slaves. Well, this update wouldn't go for that. So, cloning the file and doing a global search and destroythe external view is looking zone files in a directory that is emtpy, while the internal side continus as is. To have something for the external nameservers to transfer (hopefully), I'm doing a regular sync of the file 'sec' to 'ext'. Not totally sure that's workingbut nothing filing up logs about it. So, is what I did something that'll hold...or is there an easy proper solution to this? To hold us/me over until they decide if its going to be BlueCat or Infoblox that replaces everything. Sadly, I missed both presentations due to other issuesmore sad because I found my named.iner shirt, which I was going to wear to the second presentation ;) There were a couple of other interruptions in my upgrading my 20 servers, but I don't recall what the issue was with those now. -- Who: Lawrence K. Chen, P.Eng. - W0LKC - Sr. Unix Systems Administrator with LOPSA Professional Recognition. For: Enterprise Server Technologies (EST) -- SafeZone Ally On 2015-08-03 10:06, Reindl Harald wrote: Am 03.08.2015 um 16:59 schrieb Anand Buddhdev: On 03/08/15 16:50, Heiko Richter wrote: Hi Heiko, Why use the file option at all on a slave? If you don't use the file option on a slave, then BIND does not write the zone to disk. This is okay for a small number of small zones. But if you have many zones, or they are large, then you usually want to save a copy of the zone to disk, so that at restart, BIND can load the zones in quickly and load them at all in a acceptable timeframe if it doesn ot save them to disk as you said and you have some hundret zones you likely exceed transfer ratelimits and it takes unacceptable long until you slave responds while clients already ask him the next problem with not having them on disk is: god beware if your master is down and due analyzes or before you recognize the problem you restart your slave named or the server ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: ERROR : - writeable file 'data/udalgurijudiciarygov.hosts': already in use: /etc/nicnet2007.govdomain:15424 - loading configuration: failure
Hi Prakash On Mon, Aug 03, 2015 at 10:14:50AM +0530, prakash wrote: Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15424: writeable file 'data/udalgurijudiciarygov.hosts': already in use: /etc/nicnet2007.govdomain:15424 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15431: writeable file 'data/bodolandgov.hosts': already in use: /etc/nicnet2007.govdomain:15431 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15445: writeable file 'data/cexhyd2gov.hosts': already in use: /etc/nicnet2007.govdomain:15445 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15452: writeable file 'data/bmcsagaredu.hosts': already in use: /etc/nicnet2007.govdomain:15452 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15459: writeable file 'data/crckozhikodegov.hosts': already in use: /etc/nicnet2007.govdomain:15459 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15466: writeable file 'data/wblcgov.hosts': already in use: /etc/nicnet2007.govdomain:15466 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15473: writeable file 'data/precursorsncbgov.hosts': already in use: /etc/nicnet2007.govdomain:15473 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15480: writeable file 'data/icggov.hosts': already in use: /etc/nicnet2007.govdomain:15480 Aug 3 09:59:34 govindnsvm named[7436]: loading configuration: failure Aug 3 09:59:34 govindnsvm named[7436]: exiting (due to fatal error) See if you have used these data/*.host as values with the file option multiple times in your named configuration. It may be that you have included a config snippet multiple times. Mukund pgpROt9HComlc.pgp Description: PGP signature ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: ERROR : - writeable file 'data/udalgurijudiciarygov.hosts': already in use: /etc/nicnet2007.govdomain:15424 - loading configuration: failure
Hi, Thanks Mukund for kind help. Problem has been resolved .. Thanks regards Prakash Chand - Original Message - From: Mukund Sivaraman m...@isc.org Date: Monday, August 3, 2015 11:51 am Subject: Re: ERROR : - writeable file 'data/udalgurijudiciarygov.hosts': already in use: /etc/nicnet2007.govdomain:15424 - loading configuration: failure To: prakash prak...@nic.in Cc: bind-users@lists.isc.org Hi Prakash On Mon, Aug 03, 2015 at 10:14:50AM +0530, prakash wrote: Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15424: writeable file 'data/udalgurijudiciarygov.hosts': already in use: /etc/nicnet2007.govdomain:15424 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15431: writeable file 'data/bodolandgov.hosts': already in use: /etc/nicnet2007.govdomain:15431 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15445: writeable file 'data/cexhyd2gov.hosts': already in use: /etc/nicnet2007.govdomain:15445 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15452: writeable file 'data/bmcsagaredu.hosts': already in use: /etc/nicnet2007.govdomain:15452 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15459: writeable file 'data/crckozhikodegov.hosts': already in use: /etc/nicnet2007.govdomain:15459 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15466: writeable file 'data/wblcgov.hosts': already in use: /etc/nicnet2007.govdomain:15466 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15473: writeable file 'data/precursorsncbgov.hosts': already in use: /etc/nicnet2007.govdomain:15473 Aug 3 09:59:34 govindnsvm named[7436]: /etc/nicnet2007.govdomain:15480: writeable file 'data/icggov.hosts': already in use: /etc/nicnet2007.govdomain:15480 Aug 3 09:59:34 govindnsvm named[7436]: loading configuration: failure Aug 3 09:59:34 govindnsvm named[7436]: exiting (due to fatal error) See if you have used these data/*.host as values with the file option multiple times in your named configuration. It may be that you have included a config snippet multiple times. Mukund ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
DNSSec KSK problem
Hi!
I'm hoping someone here can help me with a problem in my DNSSec
configuration.
I'm running Bind 9 in Debian Jessie and just finished configuring it
with DNSSec for my zones. Everything including automatic key rollover
for the ZSKs is working, except for a slight anomaly with my KSKs:
For some reason the KSK isn't only used to sign the ZSKs, but also to
sign the zone. My server obviously signs the normal records with the
ZSK and the KSK as you can see on this diagnostic site:
http://dnsviz.net/d/heikorichter.org/dnssec/
Strangely for the TLD and the root zone the same flags are set on their
keys (257 for KSK and 256 for ZSK) and their servers seem to do it
right. Their KSKs are only signing the ZSK and their ZSKs are used to
sign the zone.
How can I force Bind to that same behaviour?
Here is my Options-Clause:
options {
allow-query {
any;
};
allow-recursion {
loopback;
v1;
v2;
};
auth-nxdomain no;
directory /var/cache/bind;
disable-empty-zone yes;
dnssec-enable yes;
dnssec-validation yes;
edns-udp-size 1460;
empty-zones-enable no;
forwarders { };
hostname v1.heikorichter.org;
ixfr-from-differences no;
listen-on {
any;
};
listen-on-v6 {
any;
};
max-refresh-time 7200;
max-retry-time 1800;
max-udp-size 1460;
min-refresh-time 900;
min-retry-time 600;
minimal-responses no;
notify yes;
preferred-glue ;
provide-ixfr no;
random-device /dev/urandom;
recursion yes;
request-ixfr no;
rrset-order {
order random;
};
server-id v1.heikorichter.org;
sig-validity-interval 2400;
statistics-file /etc/bind/stats;
transfer-format one-answer;
version Get Lost Pal;
zone-statistics yes;
};
Command used to generate the KSK:
dnssec-keygen -r /dev/urandom -f KSK -a ECDSAP384SHA384 \
-P now -A +100 -R none -I none -D none \
-K /etc/bind/dyn/heikorichter.org heikorichter.org
Command used to generate the ZSK:
dnssec-keygen -r /dev/urandom -3 -a ECDSAP256SHA256 \
-P +2592000 -A +2678400 -R none -I +5443200 -D +5529600 \
-K /etc/bind/dyn/heikorichter.org heikorichter.org
___
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from this list
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Re: ERROR : - writeable file 'data/udalgurijudiciarygov.hosts': already in use: /etc/nicnet2007.govdomain:15424 - loading configuration: failure
On 03/08/15 16:50, Heiko Richter wrote: Hi Heiko, Why use the file option at all on a slave? If you don't use the file option on a slave, then BIND does not write the zone to disk. This is okay for a small number of small zones. But if you have many zones, or they are large, then you usually want to save a copy of the zone to disk, so that at restart, BIND can load the zones in quickly. Regards, Anand ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: ERROR : - writeable file 'data/udalgurijudiciarygov.hosts': already in use: /etc/nicnet2007.govdomain:15424 - loading configuration: failure
Am 03.08.2015 um 16:59 schrieb Anand Buddhdev: On 03/08/15 16:50, Heiko Richter wrote: Hi Heiko, Why use the file option at all on a slave? If you don't use the file option on a slave, then BIND does not write the zone to disk. This is okay for a small number of small zones. But if you have many zones, or they are large, then you usually want to save a copy of the zone to disk, so that at restart, BIND can load the zones in quickly and load them at all in a acceptable timeframe if it doesn ot save them to disk as you said and you have some hundret zones you likely exceed transfer ratelimits and it takes unacceptable long until you slave responds while clients already ask him the next problem with not having them on disk is: god beware if your master is down and due analyzes or before you recognize the problem you restart your slave named or the server signature.asc Description: OpenPGP digital signature ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Block propagation for a specific record A
Am 29.07.2015 um 10:59 schrieb Job: Hello, for a test page purpuose, we would like to avoid propagation only for a specific record A, example: test.domain.com We need to test if users set up our DNS server in ethernet configuration, and they display correctly the test page. But, if test.domain.com propagate, we are not sure they use our DNS server! Is there a way? Thank you! Francesco Within a zone there ist not. But you could create a sub-zone test.domain.com and delegate to it from the first zone. Then you are free to serve it on any server you want, including one of the servers that is already serving domain.com. ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Order and Preference Priority in DNS Responses
I wanted to understand how Order and Preference Values have an impact on the answers Received from the DNS Server I am asking because, I have 4 records for NAPTR Query, as below carrier1.com 86400 IN NAPTR 50 50“s” “SIPS+D2T” ““ “_sips._tcp.carrier1.com.” carrier1.com 86400 IN NAPTR 90 50“s” “SIP+D2T”““ “_sip._tcp.carrier1.com.” carrier1.com 86400 IN NAPTR 100 100 “s” “SIP+D2U” ““ “_sip._udp.carrier1.com.” carrier1.com 86400 IN NAPTR 120100 “s” “SIPS+D2U” ““ “_sip._tcp.carrier1.com.” I am expecting to receive the answer as _sip._udp.carrier1.com but i receive _sip._tcp.carrier1.com How could I change this? ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Order and Preference Priority in DNS Responses
On 03/08/2015 12:38, Harshith Mulky wrote: I am expecting to receive the answer as _sip._udp.carrier1.com but i receive _sip._tcp.carrier1.com How could I change this? For applications that use NAPTR records it's the job of the client application to process and sort the entire set of NAPTR records based on the Order and Preference fields. The order of the records as sent back in the DNS packet is therefore irrelevant. Ray ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Order and Preference Priority in DNS Responses
Am 03.08.2015 um 13:38 schrieb Harshith Mulky: I wanted to understand how Order and Preference Values have an impact on the answers Received from the DNS Server I am asking because, I have 4 records for NAPTR Query, as below carrier1.com 86400 IN NAPTR 50 50“s” “SIPS+D2T” ““ “_sips._tcp.carrier1.com.” carrier1.com 86400 IN NAPTR 90 50“s” “SIP+D2T”““ “_sip._tcp.carrier1.com.” carrier1.com 86400 IN NAPTR 100 100 “s” “SIP+D2U” ““ “_sip._udp.carrier1.com.” carrier1.com 86400 IN NAPTR 120100 “s” “SIPS+D2U” ““ “_sip._tcp.carrier1.com.” I am expecting to receive the answer as _sip._udp.carrier1.com but i receive _sip._tcp.carrier1.com randomly https://en.wikipedia.org/wiki/Round-robin_DNS signature.asc Description: OpenPGP digital signature ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: Order and Preference Priority in DNS Responses
Hi Harshith On Mon, Aug 03, 2015 at 05:08:50PM +0530, Harshith Mulky wrote: I wanted to understand how Order and Preference Values have an impact on the answers Received from the DNS Server I am asking because, I have 4 records for NAPTR Query, as below carrier1.com 86400 IN NAPTR 50 50“s” “SIPS+D2T” ““ “_sips._tcp.carrier1.com.” carrier1.com 86400 IN NAPTR 90 50“s” “SIP+D2T”““ “_sip._tcp.carrier1.com.” carrier1.com 86400 IN NAPTR 100 100 “s” “SIP+D2U” ““ “_sip._udp.carrier1.com.” carrier1.com 86400 IN NAPTR 120100 “s” “SIPS+D2U” ““ “_sip._tcp.carrier1.com.” I am expecting to receive the answer as _sip._udp.carrier1.com but i receive _sip._tcp.carrier1.com A client application querying for this record type (NAPTR) will receive all these RRs. It is upto the client application to use these records and use them in the sequence of the ORDER field. Mukund pgp7lLBeup5wQ.pgp Description: PGP signature ___ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
