login without password

edit

Welcome to Ask Fedora! Please take a moment to read the guidelines here: http://tinyurl.com/askfedora-guidelines

I'd first suggest making sure that all updates have been applied and rebooting. If you can replicate the issue after that, it would help if you logged in that way, then immediately did something like sudo journalctl --since -2m to get the previous two minutes of logs and hopefully info about what happened. Update your question that or more info, and we'll take a closer look.

I can not reproduce that with gdm and fedora 20 up to date. With local or network account.

I first updated Fedora20 with “ sudo yum update”. This took between 5 and 10 minutes and finished with “Complete!” I then rebooted the computer. When I got the login screen, I clicked Cancel 4 times, then got the desktop, or what do you call that screen in Linux? When I clicked on Terminal, I got the login screen again, which I got around by clicking Cancel again 4 times. I then entered the command “sudo journalctl --since -2m” and now had to give my password in order to execute it. (cont'd in next comment)

(continuation of previous comment) So there is some security there, but still I would prefer my son not to be able at all to start up my computer and look and who knows what on the internet. I copied the contents of the log file to the file 20141114 log file.odt, which I would attach to this conversation, but I don't seem to be able to do that. Since the file is too long for a comment in this forum, how can I get it to you?

I have to retract " with administrative rights" from my original question, but I would like my son not to be able to log in at all and browse the internet by himself.