Novell LINUX ENTERPRISE SERVER 10 - INSTALLATION AND ADMINISTRATION 08-05-2008 Installation Manual page 625

dialog, test the availability of the selected server with Test and quit the dialog with
Finish.
32.1.2 Advanced NTP Client Configuration
The advanced configuration of an NTP client can be accessed under Advanced Confi-
guration from the main dialog of the NTP Configuration module, shown in Figure 32.1,
"YaST: Configuring an NTP Client" (page 606), after selecting the start-up mode as
described in the quick configuration.
Figure 32.2 YaST: Complex NTP Configuration
In Advanced NTP Configuration, determine whether xntpd should be started in a chroot
jail. By default, Run NTP Daemon in Chroot Jail is activated. This increases the secu-
rity in the event of an attack over xntpd, because it prevents the attacker from compro-
mising the entire system. Configure NTP Daemon via DHCP sets up the NTP client to
get a list of the NTP servers available in your network via DHCP.
Enable Open Port in Firewall if SuSEfirewall is active, which it is by default. If you
leave the port closed, it is not possible to establish a connection to the time server.
Time Synchronization with NTP 607