kuzpc:/home/kuz# iptables -L
Chain INPUT (policy DROP)
target prot opt source destination
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
ACCEPT tcp -- anywhere anywhere tcp dpt:www
ACCEPT tcp -- anywhere anywhere tcp dpt:ftp
ACCEPT tcp -- anywhere anywhere tcp dpt:ftp-data
kuz@kuzpc:~$ nmap localhost
(The 1660 ports scanned but not shown below are in state: filtered)
PORT STATE SERVICE
20/tcp closed ftp-data
21/tcp open ftp
80/tcp open http
Почему ftp-data closed ?