openssh-portable/ssh_config

# This is ssh client systemwide configuration file.  This file provides 
# defaults for users, and the values can be changed in per-user configuration
# files or on the command line.

# Configuration data is parsed as follows:
#  1. command line options
#  2. user-specific file
#  3. system-wide file
# Any configuration value is only changed the first time it is set.
# Thus, host-specific definitions should be at the beginning of the
# configuration file, and defaults at the end.

# Site-wide defaults for various options

# Host *
#   ForwardAgent no
#   ForwardX11 no
#   RhostsAuthentication no
#   RhostsRSAAuthentication yes
#   RSAAuthentication yes
#   PasswordAuthentication yes
#   FallBackToRsh no
#   UseRsh no
#   BatchMode no
#   CheckHostIP yes
#   StrictHostKeyChecking yes
#   IdentityFile ~/.ssh/identity
#   IdentityFile ~/.ssh/id_dsa
#   IdentityFile ~/.ssh/id_rsa1
#   IdentityFile ~/.ssh/id_rsa2
#   Port 22
#   Protocol 1,2
#   Cipher blowfish
#   EscapeChar ~