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# yp_get_default_domain

yp_get_default_domain -- Fetches the machine's default NIS domain.

## Description

`int yp_get_default_domain`(void );

yp_get_default_domain() returns the default domain of the node or FALSE. Can be used as the domain parameter for successive NIS calls.

A NIS domain can be described a group of NIS maps. Every host that needs to look up information binds itself to a certain domain. Refer to the documents mentioned at the beginning for more detailed information.

Example 1. Example for the default domain
    <?php
        $domain = yp_get_default_domain();

        if(!$domain) {
            echo yp_errno() . ": " . yp_err_string();
        }

        echo "Default NIS domain is: " . $domain;
    ?>

See also: yp_errno and yp_err_string

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