diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..085e293
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,9 @@
+[submodule "roles.extern/cleanup-hosts"]
+	path = roles.extern/cleanup-hosts
+	url = https://git.velt.biz/Ansible/cleanup-hosts.git
+[submodule "roles.extern/ssh-keyonly"]
+	path = roles.extern/ssh-keyonly
+	url = https://git.velt.biz/Ansible/role.ssh-keyonly.git
+[submodule "roles.extern/epel-simplified"]
+	path = roles.extern/epel-simplified
+	url = https://git.velt.biz/Ansible/epel-simplified
diff --git a/06/_epel.yml b/06/_epel.yml
new file mode 100644
index 0000000..3966a6a
--- /dev/null
+++ b/06/_epel.yml
@@ -0,0 +1,7 @@
+---
+- hosts: all
+
+  roles:
+
+    - role: epel
+
diff --git a/06/_ssh.yml b/06/_ssh.yml
new file mode 100644
index 0000000..158f519
--- /dev/null
+++ b/06/_ssh.yml
@@ -0,0 +1,6 @@
+---
+- hosts: all
+
+  roles:
+    - ssh-keyonly
+
diff --git a/06/ansible.cfg b/06/ansible.cfg
new file mode 100644
index 0000000..ba2b872
--- /dev/null
+++ b/06/ansible.cfg
@@ -0,0 +1,31 @@
+[defaults]
+
+# Inventory
+inventory = ./hosts.ini
+
+# Roles paths
+roles_path = ./roles:./roles.extern:/etc/ansible/roles
+
+# Interpreter Discovery - Ohne Warnings
+interpreter_python = auto_silent
+
+# SSH
+remote_user = root
+#host_key_checking = False
+
+# Retry files
+retry_files_enabled = yes
+retry_files_save_path = ./.cache/Retry/
+
+# Log files
+#log_path = ./log/ansible.log
+
+# Farben ausschalten
+#nocolor = 1
+
+[colors]
+# Für dunklen Hintergrund in der Console
+verbose = bright blue
+debug = bright gray
+error = bright red
+
diff --git a/06/git-urls.txt b/06/git-urls.txt
new file mode 100644
index 0000000..7d7b4e0
--- /dev/null
+++ b/06/git-urls.txt
@@ -0,0 +1,6 @@
+git clone https://git.velt.biz/Ansible/cleanup-hosts.git
+
+git clone https://git.velt.biz/Ansible/ssh-keyonly.git
+
+git clone https://git.velt.biz/Ansible/epel-simplified.git
+
diff --git a/06/hosts_ssh_epel.yml b/06/hosts_ssh_epel.yml
new file mode 100644
index 0000000..5f4976a
--- /dev/null
+++ b/06/hosts_ssh_epel.yml
@@ -0,0 +1,12 @@
+---
+- hosts: all
+
+  roles:
+
+    - cleanup-hosts
+
+    - { role: ssh-keyonly }
+
+    - role: epel
+      when: ansible_os_family == "RedHat" and ansible_distribution != "Fedora"
+
diff --git a/06/ntp-role.yml b/06/ntp-role.yml
new file mode 100644
index 0000000..743f533
--- /dev/null
+++ b/06/ntp-role.yml
@@ -0,0 +1,6 @@
+---
+- hosts: all
+
+  roles:
+    - ntp
+
diff --git a/group_vars/all/ssh.yml b/group_vars/all/ssh.yml
new file mode 100644
index 0000000..6f6d9cf
--- /dev/null
+++ b/group_vars/all/ssh.yml
@@ -0,0 +1,3 @@
+---
+ssh_service_name: sshd
+
diff --git a/group_vars/apt/ssh.yml b/group_vars/apt/ssh.yml
new file mode 100644
index 0000000..9d3811f
--- /dev/null
+++ b/group_vars/apt/ssh.yml
@@ -0,0 +1,3 @@
+---
+ssh_service_name: ssh
+
diff --git a/group_vars/ubuntu/chrony.yml b/group_vars/ubuntu/chrony.yml
new file mode 100644
index 0000000..ee5e403
--- /dev/null
+++ b/group_vars/ubuntu/chrony.yml
@@ -0,0 +1,7 @@
+---
+chrony_pools:
+  - 0.ubuntu.pool.ntp.org
+  - 1.ubuntu.pool.ntp.org
+  - 2.ubuntu.pool.ntp.org
+  - 3.ubuntu.pool.ntp.org
+
diff --git a/roles.extern/cleanup-hosts b/roles.extern/cleanup-hosts
new file mode 160000
index 0000000..526b7e4
--- /dev/null
+++ b/roles.extern/cleanup-hosts
@@ -0,0 +1 @@
+Subproject commit 526b7e4bb5b81630f9f7b25bbc1035b42a454358
diff --git a/roles.extern/epel b/roles.extern/epel
new file mode 120000
index 0000000..2154609
--- /dev/null
+++ b/roles.extern/epel
@@ -0,0 +1 @@
+epel-simplified
\ No newline at end of file
diff --git a/roles.extern/epel-simplified b/roles.extern/epel-simplified
new file mode 160000
index 0000000..55ad5af
--- /dev/null
+++ b/roles.extern/epel-simplified
@@ -0,0 +1 @@
+Subproject commit 55ad5aff48a6cbd07407614f835da5175e8e72cc
diff --git a/roles.extern/hosts b/roles.extern/hosts
new file mode 120000
index 0000000..7b9fd07
--- /dev/null
+++ b/roles.extern/hosts
@@ -0,0 +1 @@
+cleanup-hosts
\ No newline at end of file
diff --git a/roles.extern/ssh-keyonly b/roles.extern/ssh-keyonly
new file mode 160000
index 0000000..c55557f
--- /dev/null
+++ b/roles.extern/ssh-keyonly
@@ -0,0 +1 @@
+Subproject commit c55557f733bd798f5c30396dca5e3c83effe173e
diff --git a/roles/ntp/defaults/main.yml b/roles/ntp/defaults/main.yml
new file mode 100644
index 0000000..84e77fb
--- /dev/null
+++ b/roles/ntp/defaults/main.yml
@@ -0,0 +1,7 @@
+---
+chrony_pools:
+  - 0.de.pool.ntp.org
+  - 1.de.pool.ntp.org
+  - 2.de.pool.ntp.org
+  - 3.de.pool.ntp.org
+
diff --git a/roles/ntp/tasks/main.yml b/roles/ntp/tasks/main.yml
new file mode 100644
index 0000000..134cae2
--- /dev/null
+++ b/roles/ntp/tasks/main.yml
@@ -0,0 +1,16 @@
+---
+- name: Install Chrony
+  package: name=chrony state=latest
+
+- name: Show pools
+  debug: var=chrony_pools
+
+- name: Template config file
+  template: "src=chrony.conf.j2 dest='{{ chrony_config_path }}' mode=0644 owner=root group=root backup=yes"
+
+- name: Restart Chrony with new config
+  service: "name='{{ chrony_service_name }}' state=restarted"
+
+- name: Enable Chrony at boot
+  service: "name={{ chrony_service_name }} state=started enabled=yes"
+
diff --git a/roles/ntp/templates/chrony.conf.j2 b/roles/ntp/templates/chrony.conf.j2
new file mode 120000
index 0000000..3516a48
--- /dev/null
+++ b/roles/ntp/templates/chrony.conf.j2
@@ -0,0 +1 @@
+../../../05/chrony.conf.j2
\ No newline at end of file