With the ATEN CE624, you can now enjoy a high-quality visual experience powered by HDBaseT technology and the convenience of a single Cat6 cable to transmit uncompressed video with zero latency and multi-streaming for dual-view applications where remote access is required.
Course Of The Month
Become a Premium Member and unlock a new, free course in leading technologies each month.
Solved
Filezilla server started to give 425 error on EPSV connections
Posted on 2013-06-19
Hi,
We've had Filezilla FTP server running on our server for years now without any problems.
We recently moved from a self hosted environment to a virtual one and P2V'd our FTP server.
Ever since then one customer can't FTP files to us.
They have a program that collates xml files, zips them and sends them to us.
I've noticed in the log file that they are issuing an EPSV command (twice) then an EPRT (which I thought we should be ignoring?)
They then get as far as trying to open the data channel and it fails with a 425 error.
I've asked the company hosting the servers to investigate their firewall and they can't see anything that could be causing this.
They have also opened all ports from the customers IP to this server and the transfer still fails.
Can anyone offer any thoughts? All other FTP connections work fine.
(003548) 19/06/2013 09:53:54 - (not logged in) (195.69.xxx.xx)> Connected, sending welcome message...
(003548) 19/06/2013 09:53:54 - (not logged in) (195.69.xxx.xx)> 220-FileZilla Server version 0.9.23 beta
(003548) 19/06/2013 09:53:54 - (not logged in) (195.69.xxx.xx)> 220 Welcome to our FTP Server
(003548) 19/06/2013 09:53:54 - (not logged in) (195.69.xxx.xx)> USER xxxx
(003548) 19/06/2013 09:53:54 - (not logged in) (195.69.xxx.xx)> 331 Password required for xxxx
(003548) 19/06/2013 09:53:54 - (not logged in) (195.69.xxx.xx)> PASS xxxx
(003548) 19/06/2013 09:53:54 - ftpusername (195.69.xxx.xx)> 230 Logged on
(003548) 19/06/2013 09:53:54 - ftpusername (195.69.xxx.xx)> CWD ToCompanyName
(003548) 19/06/2013 09:53:54 - ftpusername (195.69.xxx.xx)> 250 CWD successful. "/ToCompanyName" is current directory.
(003548) 19/06/2013 09:53:54 - ftpusername (195.69.xxx.xx)> TYPE I
(003548) 19/06/2013 09:53:54 - ftpusername (195.69.xxx.xx)> 200 Type set to I
(003548) 19/06/2013 09:53:54 - ftpusername (195.69.xxx.xx)> EPSV ALL
(003548) 19/06/2013 09:53:54 - ftpusername (195.69.xxx.xx)> 229 Entering Extended Passive Mode (|||1816|)
(003548) 19/06/2013 09:53:54 - ftpusername (195.69.xxx.xx)> EPSV
(003548) 19/06/2013 09:53:54 - ftpusername (195.69.xxx.xx)> 229 Entering Extended Passive Mode (|||1817|)
(003548) 19/06/2013 09:54:16 - ftpusername (195.69.xxx.xx)> EPRT |1|195.69.xxx.xx|2765|
(003548) 19/06/2013 09:54:16 - ftpusername (195.69.xxx.xx)> 200 Port command successful
(003548) 19/06/2013 09:54:16 - ftpusername (195.69.xxx.xx)> STOR LAAD3_alice.willoughby_201
(003548) 19/06/2013 09:54:16 - ftpusername (195.69.xxx.xx)> 150 Opening data channel for file transfer.
(003548) 19/06/2013 09:54:26 - ftpusername (195.69.xxx.xx)> 425 Can't open data connection.
(003548) 19/06/2013 10:04:26 - ftpusername (195.69.xxx.xx)> 421 Connection timed out.
(003548) 19/06/2013 10:04:26 - ftpusername (195.69.xxx.xx)> disconnected.
We've had Filezilla FTP server running on our server for years now without any problems.
We recently moved from a self hosted environment to a virtual one and P2V'd our FTP server.
Ever since then one customer can't FTP files to us.
They have a program that collates xml files, zips them and sends them to us.
I've noticed in the log file that they are issuing an EPSV command (twice) then an EPRT (which I thought we should be ignoring?)
They then get as far as trying to open the data channel and it fails with a 425 error.
I've asked the company hosting the servers to investigate their firewall and they can't see anything that could be causing this.
They have also opened all ports from the customers IP to this server and the transfer still fails.
Can anyone offer any thoughts? All other FTP connections work fine.
(003548) 19/06/2013 09:53:54 - (not logged in) (195.69.xxx.xx)> Connected, sending welcome message...
(003548) 19/06/2013 09:53:54 - (not logged in) (195.69.xxx.xx)> 220-FileZilla Server version 0.9.23 beta
(003548) 19/06/2013 09:53:54 - (not logged in) (195.69.xxx.xx)> 220 Welcome to our FTP Server
(003548) 19/06/2013 09:53:54 - (not logged in) (195.69.xxx.xx)> USER xxxx
(003548) 19/06/2013 09:53:54 - (not logged in) (195.69.xxx.xx)> 331 Password required for xxxx
(003548) 19/06/2013 09:53:54 - (not logged in) (195.69.xxx.xx)> PASS xxxx
(003548) 19/06/2013 09:53:54 - ftpusername (195.69.xxx.xx)> 230 Logged on
(003548) 19/06/2013 09:53:54 - ftpusername (195.69.xxx.xx)> CWD ToCompanyName
(003548) 19/06/2013 09:53:54 - ftpusername (195.69.xxx.xx)> 250 CWD successful. "/ToCompanyName" is current directory.
(003548) 19/06/2013 09:53:54 - ftpusername (195.69.xxx.xx)> TYPE I
(003548) 19/06/2013 09:53:54 - ftpusername (195.69.xxx.xx)> 200 Type set to I
(003548) 19/06/2013 09:53:54 - ftpusername (195.69.xxx.xx)> EPSV ALL
(003548) 19/06/2013 09:53:54 - ftpusername (195.69.xxx.xx)> 229 Entering Extended Passive Mode (|||1816|)
(003548) 19/06/2013 09:53:54 - ftpusername (195.69.xxx.xx)> EPSV
(003548) 19/06/2013 09:53:54 - ftpusername (195.69.xxx.xx)> 229 Entering Extended Passive Mode (|||1817|)
(003548) 19/06/2013 09:54:16 - ftpusername (195.69.xxx.xx)> EPRT |1|195.69.xxx.xx|2765|
(003548) 19/06/2013 09:54:16 - ftpusername (195.69.xxx.xx)> 200 Port command successful
(003548) 19/06/2013 09:54:16 - ftpusername (195.69.xxx.xx)> STOR LAAD3_alice.willoughby_201
(003548) 19/06/2013 09:54:16 - ftpusername (195.69.xxx.xx)> 150 Opening data channel for file transfer.
(003548) 19/06/2013 09:54:26 - ftpusername (195.69.xxx.xx)> 425 Can't open data connection.
(003548) 19/06/2013 10:04:26 - ftpusername (195.69.xxx.xx)> 421 Connection timed out.
(003548) 19/06/2013 10:04:26 - ftpusername (195.69.xxx.xx)> disconnected.
[X]
Welcome to Experts Exchange
Add your voice to the tech community where 5M+ people just like you are talking about what matters.
- Help others & share knowledge
- Earn cash & points
- Learn & ask questions
-
2
4 Comments
Are you using active or passive mode?
Filezilla uses passive mode by default, but for some environments active mode is required (Was there some changes made in your environment?).
Switch to active mode to test this possibility if you are in passive:
In FileZilla, click on Edit | Settings.
Under Connection, click on FTP and choose Active as the Transfer Mode.
Under Connection, under FTP, click on Active mode and choose “Ask your operating system for the external IP address” (the default setting).
Under Connection, under FTP, click on Passive mode and choose “Fall back to active mode” (this is an optional setting).
Filezilla uses passive mode by default, but for some environments active mode is required (Was there some changes made in your environment?).
Switch to active mode to test this possibility if you are in passive:
In FileZilla, click on Edit | Settings.
Under Connection, click on FTP and choose Active as the Transfer Mode.
Under Connection, under FTP, click on Active mode and choose “Ask your operating system for the external IP address” (the default setting).
Under Connection, under FTP, click on Passive mode and choose “Fall back to active mode” (this is an optional setting).
This should be easy enough to debug... Just make yourself a test login account and try to connect using EPSV (extended passive mode) for the data channel.. If you get the same behavior then the issue is with the virtual host. If it works for you then the problem is mostly likely the other client's firewall.
Another thing you could do is look in the logs and see if anyone else is using EPSV or if your other clients are all using PASV (tradition passive mode) and PORT (active mode) for their data channels.
Another thing you could do is look in the logs and see if anyone else is using EPSV or if your other clients are all using PASV (tradition passive mode) and PORT (active mode) for their data channels.
We've got no further with this but going to close the question and split the points between you as I appreciate your help and input.
Thanks.
Thanks.
Featured Post
Question has a verified solution.
If you are experiencing a similar issue, please ask a related question
This is a guide to setting up a new WHM/cPanel Server to be used for web hosting accounts. It is intended for web hosting company administrators and dedicated server owners. For under $99 per month (considering normal rate of Big Data Cetnters like …
If you don't have the right permissions set for your WordPress location in IIS, you won't be able to perform automatic updates. Here's how to fix the problem.
In this video, viewers will be given step by step instructions on adjusting mouse, pointer and cursor visibility in Microsoft Windows 10. The video seeks to educate those who are struggling with the new Windows 10 Graphical User Interface.
Change Cu…
Monitoring a network: how to monitor network services and why? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the philosophy behind service monitoring and why a handshake validation is critical in network monitoring. Software utilized …
Suggested Courses
Earn Certification
HTML5 Specialist - Certification
Free withPremium
Course of the Month5 days, 7 hours left to enroll
626 members asked questions and received personalized solutions in the past 7 days.
Join the community of 500,000 technology professionals and ask your questions.