Novell LINUX ENTERPRISE SERVER 10 - INSTALLATION AND ADMINISTRATION 11-05-2007 Installation Manual page 233

If network access is required during the installation or configuration of a service, the
respective YaST module opens the needed TCP and UDP ports of all internal and ex-
ternal interfaces. If this is not desired, close the ports in the YaST module or specify
other detailed firewall settings.
10.3.10 KDE and IPv6 Support
By default, IPv6 support is not enabled for KDE. You can enable it using the /etc/
sysconfig editor of YaST. The reason for disabling this feature is that IPv6 addresses
are not properly supported by all Internet service providers and, as a consequence, this
would lead to error messages while browsing the Web and delays while displaying Web
pages.
10.3.11 Online Update and Delta Packages
Online Update now supports a special kind of RPM package that only stores the binary
difference from a given base package. This technique significantly reduces the package
size and download time at the expense of higher CPU load for reassembling the final
package. See /usr/share/doc/packages/deltarpm/README for technical
details.
10.3.12 Print System Configuration
At the end of the installation (proposal dialog), the ports needed for the print system
must be open in the firewall configuration. Port 631/TCP and port 631/UDP are needed
for CUPS and should not be closed for normal operation. Port 515/TCP (for the old
LPD protocol) and the ports used by Samba must also be open for printing via LPD or
SMB.
10.3.13 Change to X.Org
The change from XFree86 to X.Org is facilitated by compatibility links that enable access
to important files and commands with the old names.
Updating SUSE Linux Enterprise 215