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Cannot connect to any FTP server no matter what FTP program I use.

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Join Date: Oct 2007

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Venom Rush Venom Rush is offline

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Cannot connect to any FTP server no matter what FTP program I use.

26 Days Ago

Hi guys/gals

I'm having the most frustrating time trying to connect to FTP servers in order to upload files. I try to connect to a number of different FTP servers and cannot connect to any of them.

I've tried connecting to the same servers using the same FTP programs on a second machine and it has no issues at all.

I've done ping and tracert tests on the machine with the issues and the internet connection is definitely NOT the problem. I've looked at network settings but with my little knowledge about networks I've not been able to see if there are any issues. Both PCs have the same network setup so I doubt it's a network issue.

I'm at a loss, anyone come across a similar issue?

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Join Date: Feb 2009

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sknake

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26 Days Ago

You may have outbound FTP filtered. type iptables-save as root on the command prompt and paste the data back here.

Also are the two machines you tested on the same LAN? IE
10.1.1.1 = router
10.1.1.2 = broken machine
10.1.1.3 = working machine

And you have confirmed they are using the same default gateway? Paste the output of route -n in linux to get the gateway. In windows type route print .

Also on the nonworking linux machine paste the output of:
telnet ftp.kernel.org 21
It should look like this:

Help with Code Tags

text Syntax (Toggle Plain Text)

root@svn:~/devex# telnet ftp.kernel.org 21
Trying 149.20.20.133...
Connected to pub.us.kernel.org.
Escape character is '^]'.
220 Welcome to ftp.kernel.org.

But yours doesn't work so it will probably look like:

Help with Code Tags

text Syntax (Toggle Plain Text)

root@svn:~/devex# telnet ftp.kernel.org 21
Trying 149.20.20.133...
telnet: Unable to connect to remote host: Connection refused

Or after 30 seconds it may never finishing and just sit at the "Connecting...."

The type of error you see will help determine what the problem may be

Scott Knake
Custom Software Development
Apex Software, Inc.

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Join Date: Oct 2007

Posts: 260

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Venom Rush Venom Rush is offline

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Posting Whiz in Training

25 Days Ago

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Originally Posted by sknake

You may have outbound FTP filtered. type iptables-save as root on the command prompt and paste the data back here.

Also are the two machines you tested on the same LAN? IE
10.1.1.1 = router
10.1.1.2 = broken machine
10.1.1.3 = working machine

And you have confirmed they are using the same default gateway? Paste the output of route -n in linux to get the gateway. In windows type route print .

Also on the nonworking linux machine paste the output of:
telnet ftp.kernel.org 21
It should look like this:
Help with Code Tags

text Syntax (Toggle Plain Text)
root@svn:~/devex# telnet ftp.kernel.org 21
Trying 149.20.20.133...
Connected to pub.us.kernel.org.
Escape character is '^]'.
220 Welcome to ftp.kernel.org.
root@svn:~/devex# telnet ftp.kernel.org 21 Trying 149.20.20.133... Connected to pub.us.kernel.org. Escape character is '^]'. 220 Welcome to ftp.kernel.org.
But yours doesn't work so it will probably look like:
Help with Code Tags

text Syntax (Toggle Plain Text)
root@svn:~/devex# telnet ftp.kernel.org 21
Trying 149.20.20.133...
telnet: Unable to connect to remote host: Connection refused
root@svn:~/devex# telnet ftp.kernel.org 21 Trying 149.20.20.133... telnet: Unable to connect to remote host: Connection refused
Or after 30 seconds it may never finishing and just sit at the "Connecting...."

The type of error you see will help determine what the problem may be

Thanks for your reply sknake. I found what my issue was. My firewall went haywire and wasn't letting any connections on port 21 through.