I use the APF firewall rules on my server; which ports should I allow ?

# Common ingress (inbound) TCP ports
IG_TCP_CPORTS=" 20,21,22,25,26,53,80,110,143,443,465,993,995,2077,2078,2082,
2083,2086,2087,2095,2096,3306,6666"

# Common ingress (inbound) UDP ports
IG_UDP_CPORTS="21,53,465,873,2077,2078"

# Common ICMP (inbound) types
# 'internals/icmp.types' for type definition; 'all' is wildcard for any
IG_ICMP_TYPES="3,5,11,0,30,8"

# Common egress (outbound) TCP ports
EG_TCP_CPORTS="21,25,26,37,43,53,80,113,465,873,3306"

# Common egress (outbound) UDP ports
EG_UDP_CPORTS="20,21,53,465,873"

# Common ICMP (outbound) types
# 'internals/icmp.types' for type definition; 'all' is wildcard for any
EG_ICMP_TYPES="all"

Thanks to Billy Vierra for the info.