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5 participants
733 discussions

synchronized processing for specific RR Type

by Lynch Davis

Hi - I was reading on the faq about zone events serialization. Has this feature been implemented? I am experimenting with a processing that would require this feature, and if I could simply add a query processor and specify serialization, a majority of my problem (I think) would be solved. I have yet to explore the full feature set of the query_processor to know if this is a correct statement, but I am hopefull. Thanks, Lynch

10 let, 7 měsíců

Knot DNS 1.6.0 (final release)

by Jan Včelák

Hello everyone! CZ.NIC Labs proudly presents the final release of Knot DNS 1.6.0. This version also becomes an LTS (Long-term support) version of the Knot DNS software. We added two more bugfixes on top of the features covered by the previous e-mails announcing the release candidates. And as this is the final release, let's highlight the most important changes: The only new feature in Knot 1.6.0 is 'persistent zone timers'. The refresh, expire, and flush zone timers are now stored in file-backed database. Thus, the state of the timers survives a complete restart of the server. (Please note that the feature is optional and requires the LMDB library.) The processing of letter case in RDATA domain names was modified: In most cases, the names are converted to lower-case letters. The exception are RR types, which are treated case-sensitively in DNSSEC. With this change, some Knot DNS internals were simplified and also problems with invalid signatures issued by Knot DNS for mixed-case RR sets should be gone. A few minor bugs in EDNS processing were resolved. And since the -rc2, we fixed forced zone retransfer (knotc refresh -f <zone>), which got broken at some point during 1.5 development. And we also corrected slave zone expiration, when the master is responding to SOA queries but refusing the transfer. We would like to thank Anand Buddhdev for helping us in testing the release candidates and also for reporting the last two bugs. Sources: https://secure.nic.cz/files/knot-dns/knot-1.6.0.tar.gz https://secure.nic.cz/files/knot-dns/knot-1.6.0.tar.xz GPG signatures: https://secure.nic.cz/files/knot-dns/knot-1.6.0.tar.gz.asc https://secure.nic.cz/files/knot-dns/knot-1.6.0.tar.xz.asc Best regards, Jan -- Jan Včelák, Knot DNS CZ.NIC Labs http://www.knot-dns.cz ------------------------------------------- Americká 23, 120 00 Praha 2, Czech Republic WWW: http://labs.nic.cz http://www.nic.cz

10 let, 7 měsíců

How to allow certain hosts to do AXFR?

by Rainer Duffner

Hi, is it possible to allow certain IPs to AXFR all zones? I need this for our helpdesk, so they can send zonefiles to customers etc. I don’t want knot to send ixfrs etc. to these IPs.

10 let, 7 měsíců

KNOT zone file

by Eric Kom

Hi all, I'm new on KNOT, and has been running BIND for many years now and would like to set up another master server to serve the domain metropolitanbuntu.co.za on a different network based on Debian and Knot. The Knot-DNS server its running fine: root@ns1:/etc/knot# knotc status OK The metropolitanbuntu.co.za zone was defined in the knot.conf file, just simple definition: zones { # This is a default directory to place slave zone files, journals etc. # default: ${localstatedir}/lib/knot, configured with --with-storage storage "/var/lib/knot"; # # Example master zone # example.com { # file "/etc/knot/example.com.zone"; # xfr-out slave0; # notify-out slave0; # } # # Example slave zone # example.net { # file "/var/lib/knot/example.net.zone # xfr-in master0; # notify-in master0; # } metropolitanbuntu.co.za { file "/var/lib/knot/metropolitanbuntu.co.za.zone"; } } After ran: root@ns1:/etc/knot# knotc -c knot.conf reload OK And checked the Syslog: root@ns1:/etc/knot# grep knot /var/log/syslog Oct 18 09:33:23 ns1 knotd[414]: info: remote control, received command 'refresh' Oct 18 09:33:47 ns1 knotd[414]: info: remote control, received command 'reload' Oct 18 09:33:47 ns1 knotd[414]: info: reloading configuration Oct 18 09:33:47 ns1 knotd[414]: info: [metropolitanbuntu.co.za] zone is up-to-date, serial 0 Oct 18 09:33:47 ns1 knotd[414]: info: configuration reloaded Oct 18 09:42:24 ns1 knotd[414]: info: remote control, received command 'status' Oct 18 09:45:03 ns1 knotd[414]: info: remote control, received command 'reload' Oct 18 09:45:03 ns1 knotd[414]: info: reloading configuration Oct 18 09:45:03 ns1 knotd[414]: info: [metropolitanbuntu.co.za] zone is up-to-date, serial 0 Oct 18 09:45:03 ns1 knotd[414]: info: configuration reloaded The metropolitanbuntu.co.za zone look up to date. My question is: its the zone file looks like the BIND one? do I have to create it, may be I missed the zone declaration in the Knot manual? It is possible to do the master to master replication from BIND to KNOT? Thanks for your support. -- -- Kind Regards Eric Kom Senior IT Manager - Metropolitan Schools _________________________________________ / You are scrupulously honest, frank, and \ | straightforward. Therefore you have few | \ friends. / ----------------------------------------- \ \ .--. |o_o | |:_/ | // \ \ (| Kom | ) /'\_ _/`\ \___)=(___/ 2 Hennie Van Till, White River, 1240 Tel: 013 750 2255 | Fax: 013 750 0105 | Cell: 078 879 1334 erickom(a)kom.za.net | erickom(a)metropolitancollege.co.za www.kom.za.net | www.kom.za.org | www.erickom.co.za Key fingerprint: 513E E91A C243 3020 8735 09BB 2DBC 5AD7 A9DA 1EF5

10 let, 7 měsíců

Subject: how to assign multiple addresses for one zone?

by Junyoung Park

Hi! I have a question to configure knot dns for split-dns server. (only master , no slaves) If my router have two interfaces, eth0 (connected with ISP) and eth1 (internal private). About same zone (ex. example.com), i want to responses different ways for eth0, eth1. (ex. eth0, www.example.com -> read /etc/knot/external.example.zone, eth1, www.example.com -> /etc/knot/internal.example.zone) How can i configure it?

10 let, 7 měsíců

DNSSEC and Zone files

by dptrash＠arcor.de

I have DNSSEC in knot-dns activated. It always signs my file and it is very difficult to change my zone file with the dnssec stuff inside. Is it possible, to keep the zone file clean and it creates a .signed file for dnssec?

10 let, 7 měsíců

Knot DNS 1.6.0-rc2 (release candidate)

by Jan Včelák

Hello list! The second release candidate of Knot DNS 1.6.0 by CZ.NIC Labs is here! The update contains just a few changes, which improve the new persistent slave zones timers feature. The database for the zone timers was being opened before the privileges were dropped and UID/GID changed. As a result, the database could not be reopened after invoking the "knotc reload" command and updated timers could not be written into the database. This problem is resolved now. If you are updating from -rc1, you will need to fix the database ownership to match your knotd user. We also increased the maximal size of the database from 10 MB to 100 MB. This should be enough for thousands of slave zones. And finally, we improved a logging of errors related to database operations. If you have a time to try the new release candidate, please, do so. The final release will probably slip a few days, but it is still scheduled for the next week. Sources: https://secure.nic.cz/files/knot-dns/knot-1.6.0-rc2.tar.gz https://secure.nic.cz/files/knot-dns/knot-1.6.0-rc2.tar.xz Have a nice weekend! Best regards, Jan, CZ.NIC Labs

10 let, 7 měsíců

Knot DNS 1.6.0-rc1 (release candidate)

by Jan Včelák

Hello everyone! Today, CZ.NIC Labs presents the first release candidate of Knot DNS 1.6.0. This comes quite soon after the release of the 1.5.3, which took place about a month ago. For this time, we were really conservative about inclusion of new features. We want to maintain Knot DNS 1.6.0 as a stable version and we intend to provide bug fixes for this release for a longer period of time. The 1.6.0 brings just one new feature - persistent timers for slave zones: The server stores zone expire, refresh, and flush timers in the file-backed database. The timers are written whenever they change and are recovered when the server is started. As a result, the timers will survive a full server restart. The persistent timers feature is an optional feature and depends on the LMDB library. Please, make sure the library is available at the build time and check the output of the 'configure' script, if you want to use this feature. We also modified domain names letter-case handling in RDATA. Previously, we preserved letter case of domain names in RDATA fields. With the 1.6.0, the domain names are converted to lower-case letters, unless the RR type is "new" and should be handled case-sensitively for compatibility with old servers. We believe that this approach is RFC-compliant. The letter case handling modification allowed us to simplify the DNSSEC signing code a little bit and also resolved problems with invalid signatures issued by Knot DNS for some mixed-case RR sets. All the other changes are various small bug fixes. Please, give Knot DNS 1.6.0-rc1 a try and report any troubles you encounter. We are looking forward to your feedback. If everything goes well, we plan to release the final version at the beginning of the next week. Sources: https://secure.nic.cz/files/knot-dns/knot-1.6.0-rc1.tar.gz https://secure.nic.cz/files/knot-dns/knot-1.6.0-rc1.tar.xz Best regards, Jan, CZ.NIC Labs

10 let, 8 měsíců

Feature requests

by josten＠no-io.net

Hey everyone, I have a production Knot DNS setup; there are two features that I believe would make it even better than what it is now. * Under the zones section a way to just "push" all master zones to slaves; the slaves should just accept any zone from a verified master in the slaves knot.conf. * The ability to just load zones from disk without explicitly stating the zone in knot.conf. For example in /var/lib/knot/example.com.zone; Knot DNS automatically loads the example.com.zone without it being identified in the knot.conf under the zone section. Of course it should do checks (like it does now) before loading the zone, and then gracefully fail and log to the logging mechanism. Other than that; awesome DNS server!

10 let, 8 měsíců

[PATCH] dnstap: Fix ProtobufCBufferSimple usage that is incorrect as of protobuf-c 1.0.0

by Robert Edmonds

protobuf-c 1.0.0 added a new 'allocator' field to ProtobufCBufferSimple that controls memory allocation, which must be NULL in order to request the default system allocator. Allocating ProtobufCBufferSimple objects on the stack without zeroing the entire object can result in protobuf-c's memory allocation functions dereferencing a garbage pointer. Note that the use of the zero initializer in this instance generates a warning on some gcc versions: dnstap.c: In function 'dt_pack': dnstap.c:26:2: warning: missing braces around initializer [-Wmissing-braces] ProtobufCBufferSimple sbuf = {0}; ^ dnstap.c:26:2: warning: (near initialization for 'sbuf.base') [-Wmissing-braces] This warning is spurious and was fixed recently: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53119 https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=211289 --- src/dnstap/dnstap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/dnstap/dnstap.c b/src/dnstap/dnstap.c index 41d42e7..cf3770c 100644 --- a/src/dnstap/dnstap.c +++ b/src/dnstap/dnstap.c @@ -23,7 +23,7 @@ uint8_t* dt_pack(const Dnstap__Dnstap *d, uint8_t **buf, size_t *sz) { - ProtobufCBufferSimple sbuf; + ProtobufCBufferSimple sbuf = {0}; sbuf.base.append = protobuf_c_buffer_simple_append; sbuf.len = 0; -- 2.0.0

10 let, 8 měsíců

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