RE: root.hind or named.hint file update
Agreed, using outdated built in hints and diligent logging does cause a minor annoyance (minor as it can be filtered after verifying the incident), so there is merit in updating even if automatic updates might not make sense. For example, an unfiltered log from a production resolver of ours would like to say the following :) 21-Sep-2016 00:01:02.859 general: warning: checkhints: l.root-servers.net/ (2001:500:9f::42) missing from hints 21-Sep-2016 00:01:02.859 general: warning: checkhints: l.root-servers.net/ (2001:500:3::42) extra record in hints 21-Sep-2016 00:01:03.580 general: warning: checkhints: l.root-servers.net/ (2001:500:9f::42) missing from hints 21-Sep-2016 00:01:03.580 general: warning: checkhints: l.root-servers.net/ (2001:500:3::42) extra record in hints 21-Sep-2016 00:01:05.102 general: warning: checkhints: l.root-servers.net/ (2001:500:9f::42) missing from hints 21-Sep-2016 00:01:05.102 general: warning: checkhints: l.root-servers.net/ (2001:500:3::42) extra record in hints 21-Sep-2016 00:01:05.174 general: warning: checkhints: l.root-servers.net/ (2001:500:9f::42) missing from hints 21-Sep-2016 00:01:05.174 general: warning: checkhints: l.root-servers.net/ (2001:500:3::42) extra record in hints 21-Sep-2016 00:01:06.087 general: warning: checkhints: l.root-servers.net/ (2001:500:9f::42) missing from hints -Michael -Original Message- From: bind-users [mailto:bind-users-boun...@lists.isc.org] On Behalf Of Matus UHLAR - fantomas Sent: Friday, September 23, 2016 7:32 AM To: bind-users@lists.isc.org Subject: Re: root.hind or named.hint file update >Pol Hallen <bin...@fuckaround.org> wrote: >> >> is it recommend put a cron script for auto-update root.hind and named.hint >> db? On 23.09.16 12:54, Tony Finch wrote: >No, it's best not to have a hints file and just use the one built in to BIND. i would not say that... it's better to use builtin hints file than having outdated hints file. But if someone does care about hints file, it's better to have current version, when the builtin one is older. -- Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. - Have you got anything without Spam in it? - Well, there's Spam egg sausage and Spam, that's not got much Spam in it. ___ 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: root.hind or named.hint file update
On Fri, Sep 23, 2016 at 02:31:51PM +0200, Matus UHLAR - fantomas wrote: > >Pol Hallen wrote: > >> > >>is it recommend put a cron script for auto-update root.hind > >>and named.hint db? > > On 23.09.16 12:54, Tony Finch wrote: > >No, it's best not to have a hints file and just use the one > >built in to BIND. I agree. > i would not say that... it's better to use builtin hints file > than having outdated hints file. > > But if someone does care about hints file, it's better to have > current version, when the builtin one is older. Seem that all of Pol's posts lately are about trying to fix problems which do not exist, and this one is solidly there. The fact is, outdated hints (whatever the source, built-in or from hints file) will not yet cause a problem. You could look back to the 1990s, find a hint file from then, use that now, and you WILL find active root servers. Once you find the root, the hints file is no longer used. When your cached root NS RRset expires, named will go to the known root servers to refresh that NS RRset. In theory, someone could put up a counterfeit root nameserver on an IP address formerly used by a real root server, but in practice I doubt this will happen. Furthermore, DNSSEC validation defeats an attack of that nature. Pol, if you are interested in knowing how named uses hints, there's a fairly recent article on the ISC KB which goes into detail.[1] My personal recommendation, however, is that if you wish to learn more about how DNS works, consult a book such as the Cricket book. [1] Sorry, I am too lazy this morning to look it up for you. -- http://rob0.nodns4.us/ Offlist GMX mail is seen only if "/dev/rob0" is in the Subject: ___ 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: root.hind or named.hint file update
Pol Hallenwrote: is it recommend put a cron script for auto-update root.hind and named.hint db? On 23.09.16 12:54, Tony Finch wrote: No, it's best not to have a hints file and just use the one built in to BIND. i would not say that... it's better to use builtin hints file than having outdated hints file. But if someone does care about hints file, it's better to have current version, when the builtin one is older. -- Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. - Have you got anything without Spam in it? - Well, there's Spam egg sausage and Spam, that's not got much Spam in it. ___ 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: root.hind or named.hint file update
Pol Hallenwrote: > > is it recommend put a cron script for auto-update root.hind and named.hint db? No, it's best not to have a hints file and just use the one built in to BIND. Tony. -- f.anthony.n.finch http://dotat.at/ - I xn--zr8h punycode Southeast Fitzroy: Southerly 4 or 5, increasing 6 to gale 8. Moderate or rough, occasionally very rough later. Rain later. Good, becoming poor later. ___ 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
root.hind or named.hint file update
Hello all :-) is it recommend put a cron script for auto-update root.hind and named.hint db? wget --user=ftp --password=ftp ftp://ftp.rs.internic.net/domain/db.cache -O /etc/bind/db.root dig +bufsize=1200 +norec NS . @a.root-servers.net > /var/named/named.root using debian there isn't any cron script thanks! Pol ___ 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