Note: If you’re attempting to use GUIs over SSH and having difficulty, please see this page on X11 Forwarding.
PuTTY provides support for both shell access and file transfer. It requires two separate downloads: putty.exe and pscp.exe. If you want FTP-like functionality, also download psftp.exe.
KiTTY is a fork from PuTTY after PuTTY had not been updated for several years. It provides the same sort of functionality as PuTTY, except the files are named kitty.exe and kscp.exe. There is no ksftp.exe.
Macintosh OS X
SSH and SCP directly from Terminal via ssh username@hostname. For file transfer, use the command scp, or sftp if you prefer FTP-like functionality. (To find Terminal, open Hard Drive->Applications Folder->Utilities Folder->Terminal)
SSH and SCP directly from a terminal via ssh username@hostname. For file transfer, use the command scp, or sftp if you prefer FTP-like functionality.