This link has been bookmarked by 22 people . It was first bookmarked on 25 Jul 2006, by Zhe sto.
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31 Jul 17
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27 Apr 14
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t. All queries for anything which ends with example.com will be directed to the name-servers for the example.com zone.
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sub-domain name-server (essentially visible only to the domain name-server).
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domain name-server (this one is visible to registration authorities)
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$ORIGIN example.com.
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@ IN SOA ns1.example.com. hostmaster.example.com. (
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IN NS ns1.example.com.
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IN NS ns2.example.com.
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ns1 IN A 192.168.0.3
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ns2 IN A 192.168.0.4
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$ORIGIN us.example.com.
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17 Apr 12
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20 Apr 10
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02 Feb 10
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glue record
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zone
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domain host name
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sub-domain name
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sub-domain host name
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remember that as far as the internet registration authorities and root/TLD name-servers are concerned sub-domains do not exist
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as far as the internet registration authorities and root/TLD name-servers are concerned sub-domains do not exist
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fully delegate
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administration of the us sub-domain
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domain name-server
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sub-domain name-server
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explicit use of the allow-transfer statement
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All queries
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ends with example.com
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name-servers for
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directed to
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example.com zone
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name servers are responsible for referring
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to any sub-domain name-servers
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named.conf file that defines the zone
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named.conf
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'named.conf'
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zone "us.example.com" IN
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masters
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probably good practice but not essential
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Bad
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use only 1 name server
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domain is non-resilient
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Zone File
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'master.example.com'
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two name servers
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sub-domain definitions
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@ IN NS ns3.us.example.com
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IN NS ns1.example.com.
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'glue' record
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$ORIGIN or EOF
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us.example.com
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slave (secondary)
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ns1.example.com
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MUST be present
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glue record
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DNS query to succeed in a single transaction
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defined in
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glue record
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zone example.com
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A record
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will already be available
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ns1.example.com
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bad old days
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18 Jan 10
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23 Jul 09
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30 Apr 09
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06 Apr 09
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01 Feb 08
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03 Sep 07
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26 Jun 07
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23 Jun 07
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11 Sep 06
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25 Jul 06
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