Merge pull request #103 from mfredholm/patch-1: Ubuntu 18 defaults

Remove deprecated options for Ubuntu 18

vars/Ubuntu_18.yml

@@ -5,36 +5,11 @@ __sshd_packages:
   - openssh-sftp-server
 __sshd_config_mode: "0644"
 __sshd_defaults:
-  Port: 22
-  Protocol: 2
-  HostKey:
-    - /etc/ssh/ssh_host_rsa_key
-    - /etc/ssh/ssh_host_dsa_key
-    - /etc/ssh/ssh_host_ecdsa_key
-    - /etc/ssh/ssh_host_ed25519_key
-  UsePrivilegeSeparation: yes
-  KeyRegenerationInterval: 3600
-  ServerKeyBits: 1024
-  SyslogFacility: AUTH
-  LogLevel: INFO
-  LoginGraceTime: 120
-  PermitRootLogin: prohibit-password
-  StrictModes: yes
-  RSAAuthentication: yes
-  PubkeyAuthentication: yes
-  AuthorizedKeysFile: "%h/.ssh/authorized_keys"
-  IgnoreRhosts: yes
-  RhostsRSAAuthentication: no
-  HostbasedAuthentication: no
-  PermitEmptyPasswords: no
+  PasswordAuthentication: no
   ChallengeResponseAuthentication: no
+  UsePAM: yes
   X11Forwarding: yes
-  X11DisplayOffset: 10
   PrintMotd: no
-  PrintLastLog: yes
-  TCPKeepAlive: yes
   AcceptEnv: LANG LC_*
   Subsystem: "sftp {{ sshd_sftp_server }}"
-  UsePAM: yes
-  UseDNS: no
 __sshd_os_supported: yes