PREUN

/bin/sh

/usr/share/rpm-helper/del-service ypserv $1 ypserv 
/usr/share/rpm-helper/del-service ypserv $1 yppasswdd 
/usr/share/rpm-helper/del-service ypserv $1 ypxfrd

POSTIN

/bin/sh

/usr/share/rpm-helper/add-service ypserv $1 ypserv 
/usr/share/rpm-helper/add-service ypserv $1 yppasswdd 
/usr/share/rpm-helper/add-service ypserv $1 ypxfrd