Setting Long User, Group, Host, and File Names

Setting Long User and Group Names

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).

Once long user and group names have been set and used, you should not attempt to revert to short names.

Setting Long Host Names

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. See expanded_node_host_names(5) for details.

Setting Long File Names

The convertfs command changes an existing file system to long file names. The newfs command creates a new file system with short (-S) or long (-L) file names. See the convertfs(1M) and newfs(1M) manpages and the HP-UX System Administrator’s Guide: Routine Tasks.

A short name is up to 14 characters; a long name is up to 255 characters. A long file name system cannot be converted back to short file names.

The /usr directory should be in a long file system, since many manpage names exceed 14 characters.