Well-Known Member
Jul 5, 2002
cPanel Access Level
Website Owner

There is a problem with our FTP program, it is connecting to the server and then it is freezing. Any aidea of the problem

ftp> ls
200 PORT command successful
150 Connecting to port 4251
226-Options: -a
226 16 matches total
ftp> pwd
257 "/" is your current location
ftp> ls
200 PORT command successful
150 Connecting to port 4252
226-Options: -a
226 16 matches total


I have switched to pro-ftpd,still it is not worked having following error

220---------- Welcome to Pure-FTPd [TLS] ----------
220-You are user number 3 of 50 allowed.
220-Local time is now 11:27. Server port: 21.
220-IPv6 connections are also welcome on this server.
220 You will be disconnected after 15 minutes of inactivity
User (myusername)
331 User pluse OK. Password required
230-User ***:( has group access to: pluseing
230 OK. Current restricted directory is /
ftp> dir
200 PORT command successful
150 Connecting to port 5008
226-Sorry, we were unable to read [.]
226-Options: -a -l
226 0 matches total
ftp> bye
221-Goodbye. You uploaded 0 and downloaded 0 kbytes.
221 Logout.


Well-Known Member
Verifed Vendor
Jun 15, 2002
Go on, have a guess
nettigritty said:
if you are using a firewall, you will need to open passive ports for FTP or use active mode (disable PASV).
However, if you do need to open up ports for PASV mode, then there's either a bug in your iptables script (e.g. APF) or with your iptables implementation (e.g. typically on a VPS), because the whole point of an SPI firewall is that you do not open up such port ranges, oetherwise you're downgrading your firewall from an SPI one to a static one, which is a reduction in your security protection.