YPGROUP(5) — FILE FORMATS

NAME

ypgroup - YP group file

SYNOPSIS

/etc/ypgroup

AVAILABILITY

Sun386i systems only.

DESCRIPTION

This is the text file used to create the YP group map on the Sun386i. It has the same format as the /etc/group file described in group(5).

The text file for the YP group map is stored in the /etc/group file on the YP master of a YP domain. Other systems in a domain (besides the YP master) can also have a local /etc/group file. The local file is accessed first by programs such as groups(1), and if it contains a line beginning with the character +, the YP map will also be accessed. The local /etc/group file on a machine can be used to specify groups that are not available on a network-wide basis.

This strategy implies that the YP master cannot use the local /etc/group file to specify groups that are to be known only to the local system. This is because the local /etc/group file on the YP master is the actual text file used to create the YP group map. The Sun386i solves this by allowing the /etc/group file on the YP master to be used locally, and using /etc/ypgroup as the text file used for creating the YP group map. This also allows re-creation of /etc/ypgroup on each slave server so it cam more easily become a master.

FILES