From Bugzilla Helper: User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows 98) Description of problem: When adding a user name that starts with a number i.e. 255test useradd will not add the user saying that it is an invalid user name. I can add a user name that starts with a number through the start here user maintenance graphics mode. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1.Use the useradd command line as follows: 2./usr/sbin/useradd -d /home/255test -g users -s /bin/bash -m 255test 3.It works like this every time. Actual Results: No user was added. Expected Results: The user should have been added. Additional info:
We have same problem with Red Hat 7.3. Well, is good policy, but how can I disable it?
you can't disable it. this is by design. the first character must be alphanumeric, although in the next release you may mix case.