On Thursday, February 7, 2002, at 11:12  AM, Paul Lieberman wrote:

> This is actually a security "feature". All unix processes have to run as
> one user or another. System processes generally run as the user root,
> but for a process such as MySQL to run as root would be a big security
> breach, so it creates a user with no privledges to run under. This user
> also becomes the owner of any files that the process needs to have write
> access to, adding another layer of security.
>   In theory you could have a single generic user account that all of
> these processes run under (some Linux systems use 'nobody') but this
> could get messy so it customary to have different accounts such as mail,
> news, apache, mysql, etc.

On most Linux systems I've ever seen, the presence of these "extra 
users" isn't as alarming as it is when an OS X user first encounters 
them in NetInfo or SysPref: Users.  It's standard procedure, in fact.  
OS X just hides the default users that come with the system, and not the 
'passwd' users -- if in fact Apple hadn't programmed OS X to hide them, 
you would have seen "nobody", "www", "root", and probably others the 
first time you ever opened up SysPref: Users.  To see the full list of 
users on your system, you can either browse around in NetInfo 
Manager.app or type 'niutil -list / /users' in a Terminal window.

This topic is the reason behind the discussion earlier this week of what 
criteria is used to hide the default users from the SysPref: Users pane, 
though that may have been on fink-users, not fink-beginners.  If you 
didn't catch that thread, Finlay Dobbie suggested that users with UID < 
100 don't show up in SysPref: Users.
(read it here: 
http://www.geocrawler.com/lists/3/SourceForge/8629/25/7759987/)

Hope that clarifies a bit,


Erik



----

Erik Price
Web Developer Temp
Media Lab, H.H. Brown
[EMAIL PROTECTED]


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