###############################################

[root@youdw ~]# netstat -tap
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address              Foreign Address            State      PID/Program name
tcp        0      0 *:49931                    *:*                        LISTEN      1418/rpc.statd
tcp        0      0 *:sunrpc                    *:*                        LISTEN      1399/portmap
tcp        0      0 *:http                      *:*                        LISTEN      1857/httpd
tcp        0      0 youdw:50000                *:*                        LISTEN      1635/hpiod
tcp        0      0 youdw:50002                *:*                        LISTEN      1640/python
tcp        0      0 *:telnet                    *:*                        LISTEN      15651/xinetd
tcp        0      0 youdw:ipp                  *:*                        LISTEN      3764/cupsd
tcp        0      0 youdw:smtp                  *:*                        LISTEN      1708/sendmail: acce
tcp        0      0 *:ftp                      *:*                        LISTEN      27825/proftpd: (acc
tcp        0      0 *:ssh                      *:*                        LISTEN      19344/sshd
tcp        0  1484 ::ffff:211.182.247.170:ssh  ::ffff:58.79.20.37:de-noc  ESTABLISHED 28844/0

################################################



[root@youdw ~]# iptables -L
Chain INPUT (policy ACCEPT)
target    prot opt source              destination
ACCEPT    tcp  --  anywhere            anywhere            tcp dpt:ftp
RH-Firewall-1-INPUT  all  --  anywhere            anywhere

Chain FORWARD (policy ACCEPT)
target    prot opt source              destination
RH-Firewall-1-INPUT  all  --  anywhere            anywhere

Chain OUTPUT (policy ACCEPT)
target    prot opt source              destination

Chain RH-Firewall-1-INPUT (2 references)
target    prot opt source              destination
ACCEPT    all  --  anywhere            anywhere
ACCEPT    icmp --  anywhere            anywhere            icmp any
ACCEPT    ipv6-crypt--  anywhere            anywhere
ACCEPT    ipv6-auth--  anywhere            anywhere
ACCEPT    udp  --  anywhere            224.0.0.251        udp dpt:mdns
ACCEPT    udp  --  anywhere            anywhere            udp dpt:ipp
ACCEPT    tcp  --  anywhere            anywhere            tcp dpt:ipp
ACCEPT    all  --  anywhere            anywhere            state RELATED,ESTABLISHED
ACCEPT    tcp  --  anywhere            anywhere            state NEW tcp dpt:ssh
REJECT    all  --  anywhere            anywhere            reject-with icmp-host-prohibited


#####################################3



[root@youdw home]# ftp localhost
Connected to youdw.
220 FTP Server ready.
500 AUTH not understood
500 AUTH not understood
KERBEROS_V4 rejected as an authentication type
Name (localhost:root): youdw
331 Password required for youdw.
Password:
530 Login incorrect.
Login failed.
421 Service not available, remote server has closed connection
ftp>


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FileZilla로 서버유형SFTP using SSH2에서 접속이 됩니다.

lokkit에서 방화벽 해제해도 알FTP에서는 접속이 안되네요..ㅡㅡ;;;