FTP error when doing file transfer

Posted by Ernie on Server Fault See other posts from Server Fault or by Ernie
Published on 2013-06-20T20:18:58Z Indexed on 2013/06/24 16:25 UTC
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I'm running vsftpd version 3.0.2 over FTPeS, and I'm having a bit of trouble with file transfers. It seems to work fine when I'm on the LAN, but not from an external IP address. I have the control port and data ports open on my server's software firewall and my router's firewall. When I'm using the service from an external IP address, it seems like sometimes a file transfer will complete, but it times out and I always get the client error:

"426 Failure writing network stream".

I've tried several clients. I'm thinking there is some sort of data sabotage either at the router or some server policy; maybe because I'm using passive ftp? Suggestions?

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