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If both ipchains and iptables are selected to activate on a particu-
lar runlevel, ipchains will take precedence. Although iptables is the
default network packet filtering mechanism under the 2.4 kernel, it cannot
be used concurrently with ipchains. At boot time, the kernel activates
ipchains then attempts to activate iptables. If ipchains rules are
present, the kernel will issue an error and fail to start iptables.
It is best to set these services to activate in both runlevel 3 and runlevel 5. To accomplish this using
chkconfig, type the following command for each service:
/sbin/chkconfig --level 35 daemon on
In the above command, replace daemon with the name of the service you are activating. To get a
list of services on the system as well as what runlevel they are set to activate on, issue the following
command:
/sbin/chkconfig --list
Turning any of the above services on using chkconfig does not actually
start the daemon. To do this use the /sbin/service. See Section 7.3,
Starting the Piranha Configuration Tool Service for an example of how
to use the service command.
For more information on runlevels and configuring services with ntsysv and serviceconf, refer to
the chapter titled Controlling Access to Services in the Official Red Hat Linux Customization Guide.
7.2 Setting a Password for the Piranha Configuration
Tool
Before using the Piranha Configuration Tool for the first time on the primary LVS router, you must
restrict access to it by creating a password. To do this, login as root and issue the following command:
/usr/sbin/piranha-passwd
After entering this command, you will be prompted to create the administrative password — taking
care to select a password that is secure.
Chapter 7:Initial Configuration
Important
WARNING
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