ftp 500 OOPS: could not bind listening IPv4 socket

root@xiuhua:~# ftp IP

Connected to *.*.*.*.

500 OOPS: could not bind listening IPv4 socket

ftp> exit

root@xiuhua:~# netstat -anp | grep 21tcp 0 0 0.0.0.0:21 0.0.0.0:* LISTEN 1112/xinetd

tcp 0 0 10.239.50.15:21 10.239.50.15:55209 TIME_WAIT -

unix 2 [ ACC ] STREAM LISTENING 9421 1172/avahi-daemon: /var/run/avahi-daemon/socket

unix 3 [ ] STREAM CONNECTED 9521 1352/upowerd

unix 3 [ ] STREAM CONNECTED 6921 1325/dbus-daemon @/tmp/dbus-WMSDo9JReq

unix 3 [ ] STREAM CONNECTED 9452 1221/accounts-daemo

unix 3 [ ] STREAM CONNECTED 7911 1221/accounts-daemo

貌似xinetd 占用了21 进程

root@xiuhua:~# service xinetd stop

root@xiuhua:~# service vsftpd start

vsftpd start/running, process 2046

root@xiuhua:~# netstat -anp | grep 21

tcp 0 0 0.0.0.0:21 0.0.0.0:* LISTEN 2046/vsftpd

unix 2 [ ACC ] STREAM LISTENING 9421 1172/avahi-daemon: /var/run/avahi-daemon/socket

unix 3 [ ] STREAM CONNECTED 9521 1352/upowerd

unix 3 [ ] STREAM CONNECTED 6921 1325/dbus-daemon @/tmp/dbus-WMSDo9JReq

unix 3 [ ] STREAM CONNECTED 9452 1221/accounts-daemo

unix 3 [ ] STREAM CONNECTED 7911 1221/accounts-daemo

root@xiuhua:/home/ftp# ftp 10.239.50.15

Connected to 10.239.50.15.

220 (vsFTPd 2.3.2)

Name (10.239.50.15:root): xiuhua

331 Please specify the password.

Password:

230 Login successful.

Remote system type is UNIX.

Using binary mode to transfer files.

ftp>