Checked my system again. It looks like have allowed the standard user to execute applications like synaptic with root rights. I know, this is going to be asked in KDE, when you start a higher privileged application as a normal user. You can then decide (as root), if the user is allowed to start this application as normal user in the future.
I also found out, that the user is in group "sudo", but got no entry in /etc/ sudoers. Also, synaptic starts as synaptic-psexec, what means, that when it is startd this way, it is started with root rights. So, my question: How can I get this all back. A graphical solution is preferred, of course I knnow, I can edit /etc/groups and other things manually. But if there is a "clicky"-way, this will be preferred. Thank you for any help and all the knowledge, you gave me. Best regards Hans
