Solved

linux ftp problem

Posted on 2010-11-29
10
368 Views
Last Modified: 2012-05-10
I am using centos 5.4 with plesk 10.0.1 and when i try to connect to ftp i got the following error :


421 Service not available, remote server has closed connection

i have tryed to ping and resolve domain domain both of them has been succed and i 've checked what if  a program listen 21 port :
lsof -i tcp:21
but it seems ok as described here http://help.godaddy.com/topic/93/article/1587
what should be the problem
0
Comment
Question by:3XLcom
  • 5
  • 4
10 Comments
 
LVL 30

Expert Comment

by:renazonse
ID: 34233093
Can you telnet into the server on port 21:

telnet server.address.com 21

If not, then it's likely the service is not running or it's firewalled
0
 
LVL 6

Assisted Solution

by:Kailash Aghera
Kailash Aghera earned 150 total points
ID: 34233175
It seems some firewall issue. Can you ftp locally? I mean does it ask for username if you type ftp localhost on your server (via SSH)?
0
 

Author Comment

by:3XLcom
ID: 34233298
yes i tryed locally but it does not work  and also i have checked what if it listen 21 port but it seems every thing is ok.
0
The Eight Noble Truths of Backup and Recovery

How can IT departments tackle the challenges of a Big Data world? This white paper provides a roadmap to success and helps companies ensure that all their data is safe and secure, no matter if it resides on-premise with physical or virtual machines or in the cloud.

 
LVL 30

Expert Comment

by:renazonse
ID: 34233317
So it does connect when you telnet into port 21?
0
 

Author Comment

by:3XLcom
ID: 34233362
no it does not server closes connection directly
0
 

Author Comment

by:3XLcom
ID: 34233441
Microsoft Telnet> open
( to ) moviegy.com:21
Connecting To moviegy.com:21...Could not open connection to the host, on port 23
: Connect failed
Microsoft Telnet>
0
 
LVL 30

Expert Comment

by:renazonse
ID: 34233579
the syntax should be exactly like so:

telnet movieguy.com 21
0
 

Author Comment

by:3XLcom
ID: 34233605
same result
0
 
LVL 30

Accepted Solution

by:
renazonse earned 350 total points
ID: 34233637
Same answer...it's either being blocked by a firewall or the ftp service is not running. You need to check your router/firewall settings and make sure port 21 is open and forwarded to the correct IP and also check your software firewall if you have one.

Try running a telnet on the local server from the terminal:

telnet localhost 21

If it connects, it's a firewall issue.
0
 

Author Closing Comment

by:3XLcom
ID: 34233664
Thanks for all your help i have found the answer :

if inetd not working try to use the proftp

edit /etc/proftpd.conf

change Servetype from inetd to Standalone

kill first the current ftp process

linux:# lsof -i tcp:21
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
inetd 25261 root 0u IPv4 452954 TCP *:ftp (LISTEN)

linux:# kill 25261

then run the proftp

linux:# /usr/sbin/proftpd
0

Featured Post

What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Periodically we have to update or add SSL certificates for customers. Depending upon your hosting plan you may be responsible for the installation and/or key generation. In the wake of Heartbleed many sites were forced to re-key. We will concen…
Join Greg Farro and Ethan Banks from Packet Pushers (http://packetpushers.net/podcast/podcasts/pq-show-93-smart-network-monitoring-paessler-sponsored/) and Greg Ross from Paessler (https://www.paessler.com/prtg) for a discussion about smart network …
Learn how to find files with the shell using the find and locate commands. Use locate to find a needle in a haystack.: With locate, check if the file still exists.: Use find to get the actual location of the file.:
Learn how to navigate the file tree with the shell. Use pwd to print the current working directory: Use ls to list a directory's contents: Use cd to change to a new directory: Use wildcards instead of typing out long directory names: Use ../ to move…

773 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question