Host name

The host name is the unique name that identifies a computer on a network.
On the Internet, the host name is in the form comp.xyz.net. If there is only one Internet site, the host name is the same as the domain name.
If a computer hosts more than one Internet site, the computer may have more than one host name, for example, home.xyz.net and comp.xyz.net). In this case, home and comp are host names and xyz.net is the domain name.
Valid characters:
  • Number range is 0…9
  • Alpha character range is A…Z (upper or lower case)
  • dash
  • period
  • Maximum of 48 valid ASCII characters
  • Do not use a period or a dash for the first and last character
  • Use only alpha characters in the last portion
  • Do not use two periods next to each other
Valid host names examples:
  • HostName.com
  • HostName
  • HostName.123
  • Host-2-Name.com
  • HostName.DomainName.com
  • Host123Name456.789DomanName000.com
Illegal host names examples:
  • .HostName.com
  • HostName.com.
  • HostName..com
  • HostName.com-
  • 123.com
  • 1234567890
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