diff --git a/roles/ams_sso/tasks/main.yml b/roles/ams_sso/tasks/main.yml
index 3a526fd..88b697f 100644
--- a/roles/ams_sso/tasks/main.yml
+++ b/roles/ams_sso/tasks/main.yml
@@ -30,7 +30,8 @@
       dest: /etc/ssh/sshd_config
       owner: root 
       group: root
-      mode: '0600'      
+      mode: '0600' 
+      
   - name: Template file ssh_config with owner and permissions    
     become_user: root
     become: yes
@@ -39,7 +40,9 @@
       dest: /etc/ssh/ssh_config
       owner: root 
       group: root
-      mode: '0644'   
+      mode: '0644'
+      backup: yes
+      
   - name: copy File remote from ./files/{{ ansible_hostname }}_krb5.keytab to /etc
     become_user: root
     become: yes
@@ -49,7 +52,7 @@
       owner: root 
       group: root
       mode: '0644'   
-     
+      backup: yes     
       
   - name: copy File krb5.conf_devel /etc
     become_user: root
@@ -59,7 +62,8 @@
       dest: /etc/krb5.conf
       owner: root 
       group: root
-      mode: '0644' 
+      mode: '0644'
+      backup: yes
     when: ansible_fqdn == 'epolsa5069bit03.tpolizei-bw.de' or ansible_fqdn == 'epolsa5073bit03.tpolizei-bw.de'
     
   
@@ -72,6 +76,7 @@
       owner: root 
       group: root
       mode: '0644' 
+      backup: yes
     when: ansible_fqdn == 'polsa5079bit03.polizei-bw.net' or ansible_fqdn == 'polsa5079stu02.polizei-bw.net' or ansible_fqdn == 'polsa5069stu02.spolizei-bw.edu'