/etc/shutmsg라는 파일이 없는 것으로 봐서 실행 안했습니다.
 # nmap localhost
Starting nmap V. 2.54BETA22 ( www.insecure.org/nmap/ )
Interesting ports on localhost.localdomain (127.0.0.1):
(The 1539 ports scanned but not shown below are in state: closed)
Port State Service
21/tcp open ftp
6000/tcp open X11
22305/tcp open wnn6_Kr
Nmap run completed -- 1 IP address (1 host up) scanned in 0 seconds
 # nmap 61.43.30.83 //IP주소를 넣어보았어요.
Starting nmap V. 2.54BETA22 ( www.insecure.org/nmap/ )
Interesting ports on (61.43.30.83):
(The 1539 ports scanned but not shown below are in state: closed)
Port State Service
21/tcp open ftp
6000/tcp open X11
22305/tcp open wnn6_Kr
Nmap run completed -- 1 IP address (1 host up) scanned in 0 seconds
filtered가 없으니 외부의 방화벽이 없는 것 같은데요.
# netstat -nr
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
61.43.30.64     0.0.0.0         255.255.255.192 U        40 0          0 eth0
127.0.0.0       0.0.0.0         255.0.0.0       U        40 0          0 lo
0.0.0.0         61.43.30.65     0.0.0.0         UG       40 0          0 eth0
 무엇이 문제일런지?