Presentation on theme: "LACNIC V – 18 / 20 november 2003 - Havana, Cuba Monitoring Lame Delegations Frederico A C Neves."— Presentation transcript:
LACNIC V – 18 / 20 november 2003 - Havana, Cuba Monitoring Lame Delegations Frederico A C Neves
LACNIC V – 18 / 20 november 2003 - Havana, Cuba Whats this ? To the inverse domain work there is a need of a direct delegation inside an special zone in-addr.arpa As any dns parent to child zone delegation when there is some types of inconsistencies the domain doesnt work This is generally called lame delegation
LACNIC V – 18 / 20 november 2003 - Havana, Cuba Current Procedures Accept delegation only on correct configured servers Check (at least) –correct delegations weekly –Lame delegations every 2 days Report at Whois Report to contacts twice a month for lame delegations lasting more than a week
LACNIC V – 18 / 20 november 2003 - Havana, Cuba Lame definition Executes a non-recursive SOA query at delegated servers. –NON AUTH-answers –Unknown domain name –Unknown host –ServFail –Query/Connection Refused –NOT SOA –CNAME –SOA Version On multi-zone delegations a single delegated server for one of the zones makes it as lame as the type of the prevailing error.
LACNIC V – 18 / 20 november 2003 - Havana, Cuba Whois sample out-put inetnum: 200.30.128/19 status: allocated owner: NEWCOM AMERICAS ownerid: GT-NEAM-LACNIC responsible: Manuel Noriega address: 13 CALLE 3-40 ZONA 10, EDIFICIO ATLANTIS OFICINA 1, 1, 1 address: 01010 - Guatemala - GT country: GT phone: +502 3661588  owner-c: NEA2 tech-c: MAN inetrev: 200.30.158/23 nserver: NSGT1.NEWCOM-NS.NET nsstat: 20031108 UDN nslastaa: 20020830 nserver: NSSV1.NEWCOM-NS.NET nsstat: 20031108 UDN nslastaa: 20020830 nserver: NSHN1.NEWCOM-NS.NET nsstat: 20031108 NOAA nslastaa: 20020830 remarks: ADDRESSES WITHIN THIS BLOCK ARE NON-PORTABLE created: 20010510 changed: 20020718
LACNIC V – 18 / 20 november 2003 - Havana, Cuba Statistics % of delegated servers 03/Dec/2002 45.2% (2393 in 5299) 26/Jun/2003 34.9% (1947 in 5578) 19/Nov/2003 26.0 % (1561 in 6006) UDN18.2% UH 2.8% NOAA 1.7% CNAME 0.5% FAIL 1.1% Q/CREFUSED 1.2% ZONE_NOT_SYNC 0.5%
LACNIC V – 18 / 20 november 2003 - Havana, Cuba Statistics updated daily at http://lacnic.net/en/lame_delegation.html
LACNIC V – 18 / 20 november 2003 - Havana, Cuba Next Steps Community policy enforcing the correction of lame delegations (LACNIC policy process) Check NS records correctness and glue absence. Possibly adopt or work to define a standard for lame delegation.
LACNIC V – 18 / 20 november 2003 - Havana, Cuba Questions ?
LACNIC V – 18 / 20 november 2003 - Havana, Cuba ERX report 22 blocks completed –76 direct allocations, 17 update. 41 blocks remain to be completed until April/2004 The so called swamp space schedule TBD Ongoing status page at –http://lacnic.net/en/erx.html
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