diff --git a/ADconnection.sh b/ADconnection.sh
index d0453cb..0fc4533 100644
--- a/ADconnection.sh
+++ b/ADconnection.sh
@@ -125,11 +125,16 @@ echo "session required pam_mkhomedir.so skel=/etc/skel/ umask=0022" | sudo tee -
 echo "auth required pam_listfile.so onerr=fail item=group sense=allow file=/etc/ssh/login.group.allowed" | sudo tee -a /etc/pam.d/common-auth
 sudo sh -c "echo 'greeter-show-manual-login=true' | sudo tee -a /usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf"
 sudo sh -c "echo 'allow-guest=false' | sudo tee -a /usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf"
+sudo echo "Cheking if there is any previous configuration"
+if [ -f /etc/ssh/login.group.allowed ]
+then
+echo "Files seems already to be modified.. skipping...."
+else
 sudo touch /etc/ssh/login.group.allowed
 sudo echo "administrator"  | sudo tee -a /etc/ssh/login.group.allowed
 sudo echo "$NetBios"'\'"$myhost""sudoers" | sudo tee -a /etc/ssh/login.group.allowed
 sudo echo "$NetBios"'\'"domain^admins" | sudo tee -a /etc/ssh/login.group.allowed
-sudo echo "Cheking if there is any previous configuration"
+fi
 if [ -f /etc/sudoers.d/sudoers ]
 then
 echo "Sudoersfile seems already to be modified.. skipping...."