nano /etc/nftables.rules
chain myinput {
       ip saddr { 192.168.0.8, 192.168.0.9 } tcp dport {ntp,ldap,ldaps,88,445,464,3268} accept
       ip saddr { 192.168.0.8, 192.168.0.9 } udp dport {ntp,ldap,ldaps,88,445,464,3268} accept

chain myoutput {
        ip daddr { 192.168.0.8, 192.168.0.9 } tcp dport {ntp,ldap,ldaps,88,445,464,3268} accept
        ip daddr { 192.168.0.8, 192.168.0.9 } udp dport {ntp,ldap,ldaps,88,445,464,3268} accept