All, In the past, we used to configure the login screens on RHEL 4 and 5 by using the gdmsetup utility. This utility is no longer available under RHEL 6. After opening a TAM ticket with Red Hat support, here is their answer on how to change the RHEL 6 login screen: Follow the steps below: Note - Where a # is shown, it is the command line prompt for the root user 1) #gconf-editor 2) Select apps->gdm->simple-greeter 3) Check the 'banner_message_enable' checkbox 4) Right click on 'banner_message_enable' checkbox' and select 'set as default'. 5) Set the message in 'banner_message_text' field. 6) Right click on 'banner_message_text' field and select 'set as default'. 7) Check the 'disable_user_list' checkbox. 8) Right click on 'disable_user_list' checkbox' and select 'set as default'. 9) To test it: #pkill gdm-binary To enter the warning banner "string" into the banner_message_text screen in step 5 above, enter the data as shown below, noting the leading and trailing \ and \ respectively at the beginning and ending of the text data: \******************WARNING**WARNING**WARNING****************** This is a... ******************WARNING**WARNING**WARNING******************\ When you finish all of the steps, you will get a nice login screen with the banner and no listing of users on the login screen. I don't know if this procedure works for Fedora Core (14?) or not, but you could give it a try. Please let me know how this works out for you. We are just beginning our work with RHEL 6.