1. ipfw
https://man.freebsd.org/cgi/man.cgi?ipfw(8)
これを見ると ssh は制限されていないのか。
- tcpserver port 322 ?
1.1. ip range
39.110.135.:allow =.tkyc319.ap.nuro.jp:allow
% Information related to '39.110.128.0 - 39.110.159.255'
inetnum: 39.110.128.0 - 39.110.159.255 netname: SO-NET descr: So-net Service
$ipfw list
1.2. whois
# ipfw list | grep allow 00100 allow ip from any to any via lo0 00600 allow ipv6-icmp from :: to ff02::/16 00700 allow ipv6-icmp from fe80::/10 to fe80::/10 00800 allow ipv6-icmp from fe80::/10 to ff02::/16 00900 allow ipv6-icmp from any to any ip6 icmp6types 1 01000 allow ipv6-icmp from any to any ip6 icmp6types 2,135,136 01200 allow udp from me to any keep-state :default 03800 allow ip from any to any