POSTIN

/bin/sh

/sbin/chkconfig --add dhcpd
# New dhcpd lease file
if [ ! -f /var/dhcpd/dhcpd.leases ]; then
    touch /var/dhcpd/dhcpd.leases
fi

POSTUN

/bin/sh

if [ $1 = 0 ]; then
    # execute this only if we are NOT doing an upgrade
    /sbin/chkconfig --del dhcpd 
fi