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Extremely slow FTP speeds

post #1 of 8
Thread Starter 
I have a kimsufi (OVH) server and I'm trying to access FTP on it, I've tried ubuntu 10.04, 11.10, and I'm currently on 12.04. Every time I reinstall I set up an FTP server (have tried FTPES, sFTP and regular FTP) and I'm getting 40kb/s transfer speeds max. I can connect to public FTP servers and hit 2.5mb/s no problem, but with this server I can't really get higher than 100kb/s no matter what client I use. I'm open to trying just about anything. I used wget to grab the linux ISO I have been messing with, and I can hit 10mb/s down so it doesn't seem to be a hardware issue.
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post #2 of 8
Quote:
Originally Posted by infodump View Post

I have a kimsufi (OVH) server and I'm trying to access FTP on it, I've tried ubuntu 10.04, 11.10, and I'm currently on 12.04. Every time I reinstall I set up an FTP server (have tried FTPES, sFTP and regular FTP) and I'm getting 40kb/s transfer speeds max. I can connect to public FTP servers and hit 2.5mb/s no problem, but with this server I can't really get higher than 100kb/s no matter what client I use. I'm open to trying just about anything. I used wget to grab the linux ISO I have been messing with, and I can hit 10mb/s down so it doesn't seem to be a hardware issue.

Dumb question, but is that 40kb/s uploading from your home broadband to the FTP server or downloading from your server. If the former then your home broadband is your bottleneck.

Also, don't use FTP. SFTP is much more secure, less glitchy and supports compression. With SFTP you just use your SSH log in.
post #3 of 8
Thread Starter 
Lol nope that's downloading. I tried plain ftp just to try increasing speeds I normally use sftp.
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post #4 of 8
Sorry, another dumb question, but did you say it's only happening for FTP / SFTP connections and not HTTP?

I wonder if it a hardware fault as FTP and SFTP are entirely different protocols; they shouldn't both be affected the same way. I have a few boxes with OVH and never had a problem, but it might be worth asking them to check the network connection. Their support services are pretty good.

[edit]

also, have you tried using different FTP clients? If I understand correctly, your OVH server is just the FTP et al server. So I wonder if it's a bug in your FTP client, or perhaps a forgotten configuration (eg Filezilla allows you to set bandwidth throttling)
Edited by Plan9 - 11/28/12 at 9:13am
post #5 of 8
Thread Starter 
Well if I do a site-to-site with my friend's OVH box I can max the connection, so that rules out hardware afaik, cause I can also do max speed ftp downloads from other public ftp sites on my pc. I've tried cuteftp, filezilla, and lftp.
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post #6 of 8

is this in passive mode?

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post #7 of 8
Quote:
Originally Posted by infodump View Post

Well if I do a site-to-site with my friend's OVH box I can max the connection, so that rules out hardware afaik, cause I can also do max speed ftp downloads from other public ftp sites on my pc. I've tried cuteftp, filezilla, and lftp.

I'm clutching at straws a little here, but your ISP might be throttling FTP from unknown addresses. If you're site-to-site FTP transfer from your friends box maxes out then the issue is most likely with your ISP.

What you could do is run SFTP over port 443 (assuming you don't already have HTTPS running on that box) so your ISP is fooled into thinking your FTP traffic is regular encrypted HTTP traffic. If that speeds up then it's definitely your ISP at fault.

It has to be SFTP though, which means editing your SSH listening port in /etc/ssh/sshd_config. Regular FTP uses random ports for data traffic rather than tunnelling everything down the authentication port (port 20 or 21, i forget which). Plus the encrypted headers in SSH should hopefully make it less identifiable as non-HTTPS traffic so harder to distinguish between *FTP* and HTTP traffic by your ISPs traffic shapers.

If that works then you'd have to screw about with tunnelling your traffic or pulling the data down via another protocol (eg having HTTP auth on Apache and using HTTPS to download from your server).
Edited by Plan9 - 12/2/12 at 1:38am
post #8 of 8
Thread Starter 
I ended up just switching ISPs and the problem is fixed. I had a few friends try it, everyone with comcast was fine, everyone with uverse had the same issue as me. So I figured time to get rid of the AT&T! Thanks for the help though from both of you.
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