vsftp問題「227 Entering Passive Mode」

①昨天測試防火牆 #iptables -P INPUT DROP   ②再配置規則，使21與20端口能經過 #iptables  -I INPUT -p tcp --sport 21 -j ACCEPT #iptables -I INPUT  -p tcp --sport 20 -j ACCEPT   ③而後訪問ftp服務遇到問題 #ftp localhost Connected to localhost.localdomain. 220 (vsFTPd 2.0.5) 530 Please login with USER and PASS. 530 Please login with USER and PASS. KERBEROS_V4 rejected as an authentication type Name (localhost:root): anonymous 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 (127,0,0,1,34,109) 》》》》出現問題，停着不動了《《《《   想了好久，解決以下： 登錄ftp後 先要 ftp> passive             （查看被動模式狀態） Passive mode  on. 要改成off才正常 ftp> passive               （一樣的命令關閉） Passive mode  off   如今 ftp> ls 200 PORT command successful. Consider using PASV. 150 Here comes the directory listing. drwxr-xr-x    4 0        0            4096 Sep 08 01:37 pub 226 Directory send OK. ftp> cd pub 250 Directory successfully changed. 一切正常     本文出自 http://linux2009.blog.51cto.com/656605/248731