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Chapter 1
Before You Begin
9
The AppleShare IP Migration utility preserves existing user and group accounts (and,
optionally, other data) without using export files.
Each chapter provides instructions for using these tools as appropriate.
System Accounts
When you install the server, several user and group accounts are created automatically.
These predefined accounts are sometimes called
system accounts
, because they’re used
by the server system software. See the user management guide for a description of
how predefined accounts are used.
You can’t change the names or IDs of system accounts. So when you migrate users and
groups, make sure you don’t try to do so. However, you can add users during migration
to two system groups: admin and wheel:
•
Wheel is a group that gives members almost as much control as root. If you’re a
member of the wheel group, you can use the
su
(superuser) command in the
Terminal application to log in to a remote computer as the root user. Use ssh to log
in, type
su
, then supply the root password when prompted.
•
The admin group gives members the rights to administer Mac OS X Server. Admin
users can use server management applications and install software that requires
administrator privileges.
Here are the predefined user accounts:
Name Short name UID
Unprivileged User nobody -2
System Administrator root 0
System Services daemon 1
Sendmail User snmsp 25
Printing Services lp 26
Postfix User postfix 27
World Wide Web Server www 70
Apple Events User eppc 71
MySQL Server mysql 74
sshd Privilege Separation sshd 75
QuickTime Streaming Server qtss 76
Cyrus User cyrus 77
Mailman User mailman 78
Unknown User unknown 99
LL2344.Book Page 9 Friday, August 22, 2003 3:44 PM