Possible Duplicate:What's the difference between SFTP, SCP and FISH protocols? I use SSH for remote file systems access. And I use Krusader file manager. Krusader offers a choice of FTP, SMB, FISH and SFTP connection protocols, and both FISH and SFTP work with an SSH server. What's the difference among FISH and SFTP?PS: I don't specify Krusader in the question title because Midnight Commander, for example, supports FISH as well, so that FISH can be something not limited to Krusader.
What's difference between FISH and SFTP?
ssh;sftp;fish protocol
FISH and SFTP are similar, and as observed do both work over SSH, SFTP requires specific support and configuration in the SSH Server to facilitate the transfer, but it a bit more secure and allows for SysAdmins to only allow SFTP (in these situations FISH won't work).FISH requires a shell (sh/rsh for instance) to copy, and hence requires full SSH access to the machine, I would imagine it would be harder to secure (I cannot comment objectively on this as I've never had to).Where possible, I'd recommend SFTP, scp, FISH (in that order).Wikipedia FISH Article