post_install() {
  setcap cap_net_bind_service=+ep usr/bin/rcp  2>/dev/null || chmod +s usr/bin/rcp
  setcap cap_net_bind_service=+ep usr/bin/rlogin 2>/dev/null || chmod +s usr/bin/rlogin
  setcap cap_net_bind_service=+ep usr/bin/rsh  2>/dev/null || chmod +s usr/bin/rsh
}

post_upgrade() {
  post_install
}