This chapter describes using and configuring OpenSSH from the client, or user endpoint; TCP flow; connecting without a password; copying files with scp/sftp; running commands on remote systems; and ssh terminal output.
The file for the system-wide client configuration is located at /etc/ssh/ssh_config. Open it with your favorite text editor to see the available options. Changes to this file are not necessary for most common uses of ssh and its server component, sshd; however, to change an option, either comment out the option (with a '#' symbol at the front of the line) to disable the option, or remove the '#' symbol at the start of the line and add an argument to enable the option to your specification.
The ssh_config manual page (man ssh_config) contains all available options and the effect they have on the system.
