November 2015
Beginner
260 pages
6h 10m
English
On a network, it's much more convenient to look up other resources by name, rather than remembering the IP address of every resource we connect to. By default, looking up hosts by name may not function without a little configuration. For example, you can try the ping command against the name of one of your Linux machines, and you may or may not get a response. This is because a DNS entry for the resource you're connecting to might not exist. If it doesn't, you'll see an error similar to the following:
ping: unknown host potato
However, if you ping the device by its IP, it would more than likely respond:
64 bytes from 10.10.96.10: icmp_seq=2 ttl=64 time=0.356 ms
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