+ <virtual>
+ <database>all</database>
+ <target>z3950.loc.gov:7090/voyager</target>
+ <target>indexdata.dk/gils</target>
+ <target>localhost:9999/Default</target>
+ </virtual>
+ </filter>
+ <filter type="auth_simple">
+ <targetRegister>../etc/example.target-auth</targetRegister>
+ <discardUnauthorisedTargets/>
+ </filter>
+ <filter type="multi">