Red Hat NETWORK - USER REFERENCE GUIDE 1.3 User Reference Manual page 18

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Error: Username Already Exists) until you have successfully chosen a unique user name and password
combination.
Figure 2–4 Error: Username Already Exists
If you are already a member of redhat.com, you can use the same user name
and password. However, you will still need to continue with the registration
process to create your System Profile.
Your user name and password have the following restrictions:
• Must be at least four characters long
• Are case-insentitive
• Can not contain any spaces
• Can not contain any tabs
• Can not contain any line feeds
• Can not contain the characters &, +, %, or '
If you have already registered and wish to update your System Profile, you can run the Red Hat
Network Registration Client again and enter your existing user name and password. If you choose
to do this, the dialog box shown in Figure 2–5, Warning: This System Already Registered will appear.
Click to start the Red Hat Network Registration Client and update your System Profile.
Yes
Note
Chapter 2:Registration