L4 설정 후 ftp 접속후 ls명령어 안되는 경우
1. default gateway를 L4 스위치 1.x.x.7로 설정
2. L4 스위치에서 proxy 모드로 설정
3. [skt-windapd01 ~]$ ftp 15
Connected to 150).
220 {WARNING:Authorized use only}
Name (1501):
331 Please specify the password.
Password:
230 Login successful.
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> ls
227 Entering Passive Mode (1).
425 Security: Bad IP connecting. <---- 이 메세지 발생하여 아래의 구문 추가
ftp> pass
Passive mode off.
ftp> ls
500 Illegal PORT command.
ftp: bind: Address already in use
4. /etc/vsftpd/vsftpd.conf에 추가
pasv_promiscuous=yes
---------
(15) 에서 작업했습니다.
1번 서버에 직접 접속
[g@-wi1 ~]$ ftp
Connected to 1
220 {WARNING:Authorized use only}
Name (15
331 Please specify the password.
Password:
230 Login successful.
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> ls
227 Entering Passive Mode (19).
150 Here comes the directory listing.
-rw-rw-r-- 1 1008 1008 0 Jul 10 11:39 1st_server.chk
226 Directory send OK.
ftp> bye
221 Goodbye.
2번 서버에 직접 접속
[g1 ~]$ ftp 15
Connected to 1
220 {WARNING:Authorized use only}
Name (15
331 Please specify the password.
Password:
230 Login successful.
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> ls
227 Entering Passive Mode (10).
150 Here comes the directory listing.
-rw-rw-r-- 1 1008 1008 0 Jul 10 11:40 2nd_server.chk
-rwxrwxrwx 1 0 0 21533 Jun 08 13:26 mkdir_0601.sh
226 Directory send OK.
ftp> bye
221 Goodbye.
L4로 접속
[@s~]$ ftp 1
Connected to ).
220 {WARNING:Authorized use only}
Name (150.):
331 Please specify the password.
Password:
230 Login successful.
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> ls
227 Entering Passive Mode (150,3).
ftp: connect: 연결 시간 초과
ftp> bye
221 Goodbye.