Cyberduck Mountain Duck CLI

#4217 closed enhancement (wontfix)

Specify SCP encryption to use for file transfers

Reported by: Owned by: dkocher
Priority: normal Milestone: 3.8
Component: sftp Version: 3.4.1
Severity: normal Keywords: scp transfer speed cypher
Cc: Architecture:


I have SSH access to a Linux server which is on a 100/100 Mbits network. Naturally, I often find myself transferring files to and from this server. My home connection is an 8 Mbits ADSL line. When I transfer files with scp (be it via Cyberduck or Terminal), my transfer speed usually varies around 400-500 KB/s. However, if I specify the cypher to use with SCP (with the -c option) I can get up to 900-1000 KB/s with the same file (in my case, I used arcfour encryption). So, I would like to request a feature in Cyberduck which allows choosing between several SCP cyphers. More about SCP cyphers and how they relate to transfer speed can be found in the article "Speed up scp file transfer" by Syed Atif Ali. Link to the article:

Change History (2)

comment:1 Changed on Feb 11, 2010 at 3:50:02 PM by yla

  • Milestone 3.4.2 deleted

comment:2 Changed on Nov 19, 2010 at 4:40:23 PM by dkocher

  • Milestone set to 4.0
  • Resolution set to wontfix
  • Status changed from new to closed

We changed the wishlist in r7597 but don't plan to make this configurable.

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