anchor.diff:  HostKey /etc/ssh/ssh_host_rsa_key
   HostKey /etc/ssh/ssh_host_dsa_key
   HostKey /etc/ssh/ssh_host_ecdsa_key
  +HostKey /etc/ssh/ssh_host_ed25519_key
   #Privilege Separation is turned on for security
   UsePrivilegeSeparation yes
  -
  -# Lifetime and size of ephemeral version 1 server key
  -KeyRegenerationInterval 3600
  -ServerKeyBits 768
   
   # Logging
   SyslogFacility AUTH
  
positive.code: 
  RSAAuthentication yes
  PubkeyAuthentication yes
  AuthorizedKeysFile	%h/.ssh/authorized_keys
  
  # Don't read the user's ~/.rhosts and ~/.shosts files
  IgnoreRhosts yes
  
negative.code: PrintLastLog yes
  TCPKeepAlive yes
  #UseLogin no
  UseDNS no
  
  #MaxStartups 10:30:60
  #Banner /etc/issue.net
  