Re: RedHat user/group names ?

[John <spam debian merseine nu>]

On Wednesday 06 August 2003 04:23, Kern, Thomas wrote:
> I am new to RedHat systems and not very experienced with other linux
> distributions. Under our TurboLinux systems, we use some UPPERCASE group
> names and some MixedCase user names. This level of RedHat does not want me
> to use any UPPERCASE character in either user or group names. Is this just
> the way RedHat works or have I missed some configuration setting somewhere?

I am surprised it doesn't work, but (at least for user names) it's a bad idea. 
For starters, the local part of an email address is supposed to be 
case-insensitive, and if you attempt mail delivery to "smith example com' 
when the account name is actually Smith, the mail will bounce.

I think sendmail tries twice, first with the local part as provided (smith) 
and again with it converted to lowe case.



>
> /Thomas Kern
> /301-903-2211
>
> [root lnxrh00 etc]# groupadd SYSTEMS
> groupadd: SYSTEMS is a not a valid group name
> [root lnxrh00 etc]# useradd SysProg
> useradd: invalid user name 'SysProg'

I did do that once, but decided it was folly.