Amigo zekkerj essas sãs as saídas:
ps -ef | grep -i ftp
root 9294 6823 0 13:55 pts/0 00:00:00 grep --color=auto -i ftp
netstat -atun | grep 21
tcp 0 0 192.168.1.212:7000 0.0.0.0:* OUÇA
tcp 0 0 192.168.1.212:1720 0.0.0.0:* OUÇA
tcp 0 0 192.168.1.212:37200 74.125.45.205:993 ESTABELECIDA
tcp 0 0 192.168.1.212:33607 74.125.65.205:993 ESTABELECIDA
tcp 0 0 192.168.1.212:51890 65.55.39.135:995 TIME_WAIT
tcp 0 0 192.168.1.212:60486 65.55.71.195:1863 ESTABELECIDA
tcp 0 0 192.168.1.212:44835 78.140.191.148:80 ESTABELECIDA
tcp 0 0 192.168.1.212:47867 65.54.48.167:1863 ESTABELECIDA
tcp 0 0 192.168.1.212:51888 65.55.39.135:995 ESTABELECIDA
tcp 0 0 192.168.1.212:33555 74.125.65.205:993 ESTABELECIDA
udp 0 0 192.168.1.212:1718 0.0.0.0:*
udp 0 0 192.168.1.212:1719 0.0.0.0:*
sudo iptables -L -v -n
Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
Chain OUTPUT (policy ACCEPT 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination