post_install() {
    systemctl enable krb5-kdc.service
    systemctl enable krb5-kpropd.service
    systemctl enable krb5-kadmind.service
}

pre_remove() {
    systemctl stop krb5-kadmind.service
    systemctl stop krb5-kpropd.service
    systemctl stop krb5-kdc.service
    systemctl disable krb5-kadmind.service
    systemctl disable krb5-kpropd.service
    systemctl disable krb5-kdc.service
}