helpftp.proxy - FTP Proxy Server - Support: sr #106109, Load-balanced ftp.proxy - PORT...


sr #106109: Load-balanced ftp.proxy - PORT returns node address

Submitted by:  None
Submitted on:  Tue 04 Dec 2007 07:06:52 PM UTC  
Category:  None Priority:  5 - Normal
Severity:  1 - Wish Status:  None
Privacy:  Public Assigned to:  None
Originator Email:  -email is unavailable- Open/Closed:  Open
Operating System:  GNU/Linux Fixed Release: 

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Tue 04 Dec 2007 07:06:52 PM UTC, original submission:  


I have just added ftp.proxy to my squid proxy servers, which are behind a load-balancer. Clients only have access to the VIP of the load-balancer; they cannot connect to the real servers.

I can make an FTP connection perfectly, but when I attempt a LIST, the PORT returns the node's real IP address and the connection fails, leaving an error in my FTP client.

Even when I allow direct conncetion to the node's IP addresses, my firewall's FTP inspection catches the PORT command issuing a different IP address and blocks the traffic. That's my problem though. :-)

It would be useful if there was a feature allowing me to specify a hostname or IP address as the 'identity' of the server. I'm not much of a coder (never touched C), but could this be done easily?




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