Add configuration for SSH daemon.

Signed-off-by: Maximilian Wilhelm <max@rfc2324.org>

ssh/authorized_keys_root

@@ -0,0 +1,3 @@
+{% include "ssh/authorized_keys_root.MASTER" %}
+# Special keys only allowed on this host
+{% include "ssh/authorized_keys_root.H_" ~ grains['id'] ignore missing %}

ssh/init.sls

@@ -0,0 +1,43 @@
+#
+# SSH configuration
+#
+
+# Install ssh server
+ssh:
+  pkg.installed:
+    - name: 'openssh-server'
+  service.running:
+    - enable: True
+    - reload: True
+
+
+# Enforce pubkey auth (disable password auth) and reload server on config change
+/etc/ssh/sshd_config:
+  file.managed:
+    - source:
+      - salt://ssh/sshd_config.{{ grains.os }}.{{ grains.oscodename }}
+      - salt://ssh/sshd_config
+    - user: root
+    - group: root
+    - mode: 644
+    - watch_in:
+      - service: ssh
+
+
+# Create .ssh dir for user root and install authkeys
+/root/.ssh:
+  file.directory:
+    - user: root
+    - group: root
+    - mode: 700
+    - makedirs: True
+
+
+# Create authorized_keys for root (MASTER + host specific)
+/root/.ssh/authorized_keys:
+  file.managed:
+    - source: salt://ssh/authorized_keys_root
+    - template: jinja
+    - user: root
+    - group: root
+    - mode: 644

ssh/sshd_config

@@ -0,0 +1,93 @@
+#
+# /etc/ssh/sshd_config (Salt managed)
+#
+
+# What ports, IPs and protocols we listen for
+Port 22
+# Use these options to restrict which interfaces/protocols sshd will bind to
+#ListenAddress ::
+#ListenAddress 0.0.0.0
+Protocol 2
+# HostKeys for protocol version 2
+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 1024
+
+# Logging
+SyslogFacility AUTH
+LogLevel INFO
+
+# Authentication:
+LoginGraceTime 120
+PermitRootLogin without-password
+StrictModes yes
+
+RSAAuthentication yes
+PubkeyAuthentication yes
+#AuthorizedKeysFile	%h/.ssh/authorized_keys
+
+# Don't read the user's ~/.rhosts and ~/.shosts files
+IgnoreRhosts yes
+# For this to work you will also need host keys in /etc/ssh_known_hosts
+RhostsRSAAuthentication no
+# similar for protocol version 2
+HostbasedAuthentication no
+# Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication
+#IgnoreUserKnownHosts yes
+
+# To enable empty passwords, change to yes (NOT RECOMMENDED)
+PermitEmptyPasswords no
+
+# Change to yes to enable challenge-response passwords (beware issues with
+# some PAM modules and threads)
+ChallengeResponseAuthentication no
+
+# Change to no to disable tunnelled clear text passwords
+PasswordAuthentication no
+
+# Kerberos options
+KerberosAuthentication no
+#KerberosGetAFSToken no
+#KerberosOrLocalPasswd yes
+#KerberosTicketCleanup yes
+
+# GSSAPI options
+GSSAPIAuthentication no
+#GSSAPICleanupCredentials yes
+
+X11Forwarding yes
+X11DisplayOffset 10
+PrintMotd no
+PrintLastLog yes
+TCPKeepAlive yes
+#UseLogin no
+
+#MaxStartups 10:30:60
+#Banner /etc/issue.net
+
+# Allow client to pass locale environment variables
+AcceptEnv LANG LC_*
+
+Subsystem sftp /usr/lib/openssh/sftp-server
+
+# Set this to 'yes' to enable PAM authentication, account processing,
+# and session processing. If this is enabled, PAM authentication will
+# be allowed through the ChallengeResponseAuthentication and
+# PasswordAuthentication.  Depending on your PAM configuration,
+# PAM authentication via ChallengeResponseAuthentication may bypass
+# the setting of "PermitRootLogin without-password".
+# If you just want the PAM account and session checks to run without
+# PAM authentication, then enable this but set PasswordAuthentication
+# and ChallengeResponseAuthentication to 'no'.
+UsePAM yes
+
+# HeJ: restrict cipher+mac to only allow non-CBC ones
+Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,arcfour
+MACs hmac-sha1,umac-64@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160@openssh.com