Editing Solaris 10 System Administration Part I (section)

==== /etc/inet/hosts ====

* host names are text strings up to 24 characters
* alphabetic characters, numbers, hyphen, period are allowed in host name
* periods are allowed only to delimit components of domain style names
* first character must be alphabetic character
* last character cannot be hyphen or period
* not case sensitive (unless NIS naming service is used, uppercase characters in names have been known to cause problems with NIS)
* A hash (#) indicates the beginning of a command