September 2017
Intermediate to advanced
466 pages
9h 33m
English
Content preview from Go Systems Programming
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Performing DNS lookups
There exist many types of DNS lookups, but two of them are the most popular. In the first type, you want to go from an IP address to a domain name and in the second type you want to go from a domain name to an IP address.
The following output shows an example of the first type of DNS lookup:
$ host 109.74.193.253 253.193.74.109.in-addr.arpa domain name pointer li140-253.members.linode.com.
The following output shows three examples of the second type of DNS lookup:
$ host www.mtsoukalos.eu www.mtsoukalos.eu has address 109.74.193.253 $ host www.highiso.net www.highiso.net has address 109.74.193.253 $ host -t a cnn.com cnn.com has address 151.101.1.67 cnn.com has address 151.101.129.67 cnn.com has address 151.101.65.67 ...
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