About SFTP Speed

goldenmidas · Post by **goldenmidas** » Thu Jul 16, 2009 9:13 am

Hi! I have a 1.0 gigabit LAN here, and I've set up Core FTP Server on dual core PC with Windows 2003 server.

When I'm uploading from client PCs to the server, I can only reach about 150 kilobytes/s speed.

Do you have any tips how I could improve the performance? I'd like the speed to be more like 500 kb/s!

goldenmidas · Post by **goldenmidas** » Fri Sep 11, 2009 12:53 pm

???

Anyone?

RichH · Post by **RichH** » Tue Oct 20, 2009 9:22 pm

I have been using coreftp server for more than 1 year, and have serious issues with sftp speed. I just tested several clients uploading a 1.7 gig ISO file over a fast broadband connection (1-2+ MB/s) using CoreFTP server version 3.13:

All clients installed on Vista SP2:
CoreFTP LE 2.1 b1625: ~89 KB/s, about 5 hours to transfer
Filezilla 3.2.8.1: ~118 KB/s, about 4.25 hours to transfer
WinSCP 1.9 ~114 KB/s, about 4.25 hours to transfer
Bitvise Tunnelier 4.30 ~350 KB/s, about 1.5 hours to transfer
Unsecure FTP to a similar server, ~500 KB/s+, about 2 hours to transfer

The only one worthy of using for anything other than small transfers is Bitvise. Unfortunately, it is not free except for personal use. Not good when you have users from all over the world that cannot be asked to pay for a client. I am considering giving up on sftp and moving to ftps, and dealing with all the firewall issues.

RichH · Post by **RichH** » Tue Oct 20, 2009 9:24 pm

Just realized I wrote the Standard FTP hours wrong -- should have been about 1 hour or so.