Managing Login
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4.4 Using OpenSLP to Simplify Login
The service location protocol (SLP) was developed so that networking applications such as the
Novell Client for Linux could discover the existence, location, and configuration of networked
services in enterprise networks. Without SLP, users must supply the hostname or network address of
the service that they want to access.
Because SLP makes the existence, location, and configuration of certain services known to all
clients in the local network, the Novell Client for Linux can use the information distributed to
simplify login. For the Novell Client, having SLP set up allows users to see the trees, contexts, and
servers available to them when they use the Novell Client for Linux Login screen. When they click
the
Browse
button, a list of available trees, contexts, or servers appears and they can select the
appropriate ones. For example, instead of remembering an IP address or DNS name for a server,
users can select the server’s name from a list of available servers.
SLP must be activated and set up on your Novell servers in order for the Novell Client to take
advantage of it. For more information, see
“SLP Services in the Network” in the
SUSE LINUX
Enterprise Server 9 Administration Guide
(http://www.novell.com/documentation/oes/
index.html?page=/documentation/oes/sles_admin/data/sec-net-slp.html#sec-net-slp)
.
SLP is not set up by default on Linux workstations. The Novell Client for Linux includes a Novell
Client Configuration Wizard to simplify the process of configuring your SLP and other Novell
Client configuration options. The Novell Client Configuration Wizard provides only basic SLP
configuration because this is all that is required by the client. However, if other applications on your
workstation require more advanced settings, you can modify the
/etc/slp.conf
file to set
advanced settings.
For more information on advanced SLP configuration, see the
OpenSLP Web site (http://
www.openslp.org)
. In addition, the
/usr/share/doc/packages/openslp
directory
contains documentation on SLP, including a
README.SuSE
file containing the SUSE
®
LINUX
details, several RFCs, and two introductory HTML documents (
An Introduction to SLP
and
OpenSLP User’s Guide
). RFC 2609 details the syntax of the service URLs used and RFC 2610
details DHCP via SLP.
4.4.1 Setting Up SLP
1
Launch the Novell Client Configuration Wizard using either of the following methods:
• Click >
System Settings
.
• In YaST, click
Network Services > Novell Client
.
2
Select
Service Location Protocol (OpenSLP)
, then click
Start Wizard
.
3
Specify the following SLP information for your network:
• Scope List:
Specify the scopes that a user agent (UA) or service agent (SA) is allowed
when making requests or registering, or the scopes that a directory agent (DA) must
support.
• Directory Agent List:
Specify the specific DAs that UA and SA agents must use. If this
setting is not used, dynamic DA discovery is used to determine which DAs to use.
• Broadcast Only:
Select this option to use broadcasting instead of multicasting. This
setting is not usually necessary because OpenSLP automatically uses broadcasting if
multicasting is unavailable.
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