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“main” (Installation and Administration) — 2004/6/25 — 13:29 — page 93 — #119

YaST — Conﬁguration

2.6.10 Network Services (inetd)

This tool allows you to determine which network services (such as telnet,

ﬁnger, talk, and ftp) should start when SUSE LINUX boots. These services

enable external hosts to connect to your computer. You can also conﬁgure

various parameters for each service. By default, the master service that

manages the individual services (inetd or xinetd) is not started.

When this module starts, choose which of the two services to conﬁgure.

The selected daemon can be started with a standard selection of network

services. If desired, ‘Add’, ‘Delete’, or ‘Edit’ services to compose your own

selection of services.

Caution

Conﬁguration of Network Services (inetd)

The deployment and adjustment of network services on a system

is a complex procedure that requires a complete understanding

of the concept of Linux services.

Caution

2.7 Security and Users

A basic aspect of Linux is its multiuser capability. Consequently, several

users can work independently on the same Linux system. Each user has a

user account identiﬁed by a login name and a personal password for log-

ging in to the system. All users have their own home directories where per-

sonal ﬁles and conﬁgurations are stored.

2.7.1 User Administration

After you select to edit users, YaST provides an overview of all local

users in the system. If you are part of an extensive network, click ‘Set Fil-

ter’ to list all system users (e.g., root) or NIS users. You can also create

user-deﬁned ﬁlter settings. Instead of switching between individual user

groups, combine them according to your needs. To add new users, ﬁll in

the required blanks in the following screen. Subsequently, the new user can

be ﬁne-tuned with ‘Details’. You can manually set the user ID, the home di-

rectory, and the default login shell. Assign the new user to speciﬁc groups.

93SUSE LINUX Enterprise Server