Fels¶kning och / eller kontroll

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Felsökning och / eller kontroll. Torbjörn Eklöv. d ig. Titta i din aktuella resolver. dig soa kalmar.se kalmar.se.409INSOAns.kalmar.se. hostmaster.kalmar.se. 2012120201 3600 300 3600000 3600 - PowerPoint PPT Presentation

Text of Fels¶kning och / eller kontroll

Introduction to the DNS system

Felskning och/eller kontrollTorbjrn Eklv

2013-01-091 2002

These slides where produced by Bill Manning (ISI), Ed Lewis (NAI labs) and Olaf M. Kolkman (RIPE NCC).

dig dig soa kalmar.se kalmar.se.409INSOAns.kalmar.se. hostmaster.kalmar.se. 2012120201 3600 300 3600000 3600

dig soa kalmar.se @ns.kalmar.se.kalmar.se.600INSOAns.kalmar.se. hostmaster.kalmar.se. 2012120201 3600 300 3600000 3600

dig soa kalmar.se @8.8.8.8

kalmar.se.409INSOAns.kalmar.se. hostmaster.kalmar.se. 2012120201 3600 300 3600000 3600

Titta i din aktuella resolverTitta i en auktoritativ NSTitta hos Googledig dig +dnssec soa kalmar.se

dig +dnssec soa kalmar.se @ns.kalmar.se.

dig +dnssec soa kalmar.se @ns2.ipv6dns.se.

dig

Rcker tillSkapades

dnscheckhttp://dnscheck.iis.se

dnscheck

https://dnsviz-net

http://dnsvis.net

BIND - rndc qyerylogtail f /var/log/syslog+ recursion , - inte recursionE EDNSD DNSSECC Checking disabledDec 9 14:47:32 ns3 named[21988]: 09-Dec-2012 14:47:32.288 queries: info: client 83.253.189.121#40521: query: CNU1251BYT.skola.emmaboda.se IN A -ED (109.74.6.166)Dec 9 14:47:33 ns3 named[21988]: 09-Dec-2012 14:47:33.561 queries: info: client 79.138.0.152#42193: query: bpqnfdhlup.skola.emmaboda.se IN A -EDC (109.74.7.166)Dec 9 14:47:40 ns3 named[21988]: 09-Dec-2012 14:47:40.064 queries: info: client 83.253.189.121#41442: query: CNU1251BYT.skola.emmaboda.se IN A +ED (109.74.6.166)http://jpmens.net/2011/02/22/bind-querylog-know-your-flags/BIND - rndc qyerylog

http://www.freesoft.org/CIE/RFC/2065/40.htmHur anvnds min DNS?https://github.com/dotse/packetqOm allt havererat?Gamla signaturer signera om!touch zone.dbdnssec-cron

dnscmd servernamn /zoneresign zonenameTappat bort nycklarTa bort och lgg till nytt DS!

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