By default, user names are restricted to eight characters and group names to 16 characters.
To set long (up to 254-character) user and group names, see lugadmin(1M).
If the kernel tunable expanded_node_host_names is off (0), the maximum host node name length is eight characters (for example, hprdc185) and the maximum full host name length is 64 characters (for example, hprdc185.example.com).
If it is on (1), the maximum for both is 255 characters. By default, this tunable is off.
To set long (up to 254-character) user and group names, see lugadmin(1M).
If the kernel tunable expanded_node_host_names is off (0), the maximum host node name length is eight characters (for example, hprdc185) and the maximum full host name length is 64 characters (for example, hprdc185.example.com).
If it is on (1), the maximum for both is 255 characters. By default, this tunable is off.
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