Top level domain.LT registry in Lithuania.LT domain: service availability and security LITNET...
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Top level domain .LT registry in Lithuania .LT domain: service availability and security LITNET conference Tomas Mackus Technical Manager KUT ITDI CNC Internet service department [email protected] 2008-08-25, Dubingiai
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Transcript of Top level domain.LT registry in Lithuania.LT domain: service availability and security LITNET...
Top level domain .LT registry in Lithuania
.LT domain: service availability and security
LITNET conference
Tomas MackusTechnical ManagerKUT ITDI CNC Internet service [email protected]
2008-08-25, Dubingiai
Top level domain .LT registry in Lithuania
.LT Domain
Statistics let us know where we are.
Top level domain .LT registry in Lithuania
.LT Domain Statistics
.lt Domain Growth (2001-11 - 2008-08)
10000
20000
30000
40000
50000
60000
70000
80000
90000
20
01
.11
.15
20
02
.2.1
5
20
02
.5.1
5
20
02
.8.1
5
20
02
.11
.15
20
03
.2.1
5
20
03
.5.1
5
20
03
.8.1
5
20
03
.11
.15
20
04
.2.1
5
20
04
.5.1
5
20
04
.8.1
5
20
04
.11
.15
20
05
.2.1
5
20
05
.5.1
5
20
05
.8.1
5
20
05
.11
.15
20
06
.2.1
5
20
06
.5.1
5
20
06
.8.1
5
20
06
.11
.15
20
07
.2.1
5
20
07
.5.1
5
20
07
.8.1
5
20
07
.11
.15
20
08
.2.1
5
20
08
.5.1
5
20
08
.8.1
5
Top level domain .LT registry in Lithuania
.LT Domain Statistics.LT Domain growth
-500
-300
-100
100
300
500
700
900
1100
1300
1500
2002
.01.
26
2002
.05.
26
2002
.09.
26
2003
.01.
26
2003
.05.
26
2003
.09.
26
2004
.01.
26
2004
.05.
26
2004
.09.
26
2005
.01.
26
2005
.05.
26
2005
.09.
26
2006
.01.
26
2006
.05.
26
2006
.09.
26
2007
.01.
26
2007
.05.
26
2007
.09.
26
2008
.01.
26
2008
.05.
26
Weekly growth Half year average
Top level domain .LT registry in Lithuania
.LT Domain StatisticsDomain applicant change
0
5
10
15
20
25
30
35
40
20
07
.4.2
3
20
07
.5.2
3
20
07
.6.2
3
20
07
.7.2
3
20
07
.8.2
3
20
07
.9.2
3
20
07
.10
.23
20
07
.11
.23
20
07
.12
.23
20
08
.1.2
3
20
08
.2.2
3
20
08
.3.2
3
Date
Ch
an
ge
s p
er
da
y
Top level domain .LT registry in Lithuania
.LT Domain StatisticsRegistrar changes
0
100
200
300
400
500
600
700
800
2007
.3.1
3
2007
.4.1
3
2007
.5.1
3
2007
.6.1
3
2007
.7.1
3
2007
.8.1
3
2007
.9.1
3
2007
.10.
13
2007
.11.
13
2007
.12.
13
2008
.1.1
3
2008
.2.1
3
2008
.3.1
3
2008
.4.1
3
Date
Ch
ang
es p
er d
ay
Top level domain .LT registry in Lithuania
.LT DNS Service
DNS Service Availability and Security – one of main concerns of .LT registry.
Top level domain .LT registry in Lithuania
.LT DNS Service
Main approach to secure DNS service from denial of service (DoS) attacks:
more DNS servers;more bandwidth.
DNS zone can be served by max 13 DNS servers.
Solution – Anycast DNS servers.
Top level domain .LT registry in Lithuania
.LT DNS servers There are 7 (23) authoritative .LT domain DNS
servers:Primary: a.tld.ltSecondary: b.tld.lt
c.tld.lt anycast: 16 instances
d.tld.ltanycast: 2 instancesns3.omnitel.netnn.uninett.nosunic.sunet.se
Top level domain .LT registry in Lithuania
.LT DNS serversGeographical .LT DNS servers distribution
Top level domain .LT registry in Lithuania
.LT DNS serversGeographical .LT DNS server distribution
Europe region:Kaunas,LTVilnius, LTOslo, NOStockholm, SELondon, UKAmsterdam, NLVienna, ATWarsaw, PLBudapest, HULuxembourg, LUDublin, IECrete, GR
America region:Chicago, USAshburn,USSan Jose, USLos Angeles, US
Asia Pacific region:Tokyo, JPHong Kong,HKTehran, IRJakarta, IDPerth, AU
Top level domain .LT registry in Lithuania
.LT DNS serversPlanned DNS infrascructure upgrades:
Change secondary DNS servers: ns3.omnitel.net
sunic.sunet.senn.uninett.no
to our managed boxes.
Top level domain .LT registry in Lithuania
Client support…
