Backup via FTP not working

[exvision]

I'm receiving the following error message when attempting to backup via ftp to a local ftp server.

Unable to create the backup file: Unable to fetch dumps list from ftp server: ftp_filemng: error: cURL execution failed: socket error: 110

System error 115: Operation now in progress

Plesk actually connects as shown below. A transfer doesn't start though. I am able to connect to this server manually using ftp with no problems. Any idea what I may need to adjust?

Wed 05 Dec 2007 [12:09:43] 000001 USER test
connected, login : test
Wed 05 Dec 2007 [12:09:43] 000001 331 User login OK, waiting for password
Wed 05 Dec 2007 [12:09:43] 000001 PASS **********
Wed 05 Dec 2007 [12:09:43] 000001 User test logged in successfully
Wed 05 Dec 2007 [12:09:43] 000001 230 User password OK, CesarFTP server ready
Wed 05 Dec 2007 [12:09:43] 000001 PWD
Wed 05 Dec 2007 [12:09:43] 000001 257 "/backup"
Wed 05 Dec 2007 [12:09:44] 000001 CWD /backup
Wed 05 Dec 2007 [12:09:44] 000001 250 Directory change OK
Wed 05 Dec 2007 [12:09:44] 000001 CWD smcm
Wed 05 Dec 2007 [12:09:44] 000001 250 Directory change OK
Wed 05 Dec 2007 [12:09:44] 000001 EPSV
Wed 05 Dec 2007 [12:09:44] 000001 500 Syntax error or unknown command
Wed 05 Dec 2007 [12:09:44] 000001 PASV
Wed 05 Dec 2007 [12:09:44] 000001 227 Entering Passiv Mode (192,168,0,175,8,0)

 

[clintsulis]

Plesk FTP Backup Problem Solved

I was having this same problem and managed to fix it today. I was receiving the exact error messages posted at the top of this thread. I am using Plesk Unloaded v7.5.3 on Fedora and have Filezilla v0.9.27 running on Windows 2003 Server.

Our company has ComCast business grade Internet service, so if we want to host any services we need to login to our router and map ports using Network Address Translation (NAT). Therefore, I configured ports 20-21 TCP/UDP to forward to my file server 10.0.0.2 which is a non-routable IP address. This did not work, and after much poking around I discovered that FileZilla has a few Passive (PASV) mode settings. Their explanations is as follows...

"Use custom PASV settings if you are operating the server from behind a NAT router or a firewall. In that case, the IP address of the server is not accessible from outside of the router, so you should fill in the correct address here. Use the port range to limit the number of ports that will need to be forwarded through the router."

So I set the external IP address of my ComCast connection as the IP address FileZilla should use when performing PASV file transfers. I set a custom port range as well, and tried to setup the cable router to forward these ports as well. Unfortunately this only made PLESK timeout faster...

I knew I was onto something here, so I just decided to go for broke and put the server in the DMZ. Essentially I stopped using NAT to forward FTP from the cable router to the file server. This fixed the problems immediately and PLESK FTP Backups now run flawlessly.

The bottom line here is if you are having problems with PLESK FTP Backups, and the remote FTP server is behind a firewall or behind a router using NAT, you need to either setup port forwarding, firewall, and FTP Server PASV settings correctly (i failed to do this) or hang your FTP server's butt out on the Internet with nothing in front of it to mess up the PASV FTP transfers.

I realize this is not very technical but with the lack of good responses to this issue I thought i'd better post something.

 

[abdi]

http://kb.parallels.com/en/7059