ScriptAlias /nagios/cgi-bin /usr/local/nagios/sbin

<Directory "/usr/local/nagios/sbin">
   AllowOverride AuthConfig
   Options +ExecCGI
   SetHandler cgi-script
   Order allow,deny
   Allow from localhost
</Directory>

Alias /nagios /usr/local/nagios/share
<Directory "/usr/local/nagios/share">
   Options None
   AllowOverride AuthConfig
   Order allow,deny
   Allow from localhost
</Directory>