Chapter 6. Configuration File
This chapter documents the Turbolinux Cluster LoadBalancer 10 configuration file. We will take a look at each section of the configuration file and the syntax of each option.
Turbolinux recommends that you use the configuration tools tlclbconfig or turboclusteradmin to modify the configuration file instead of editing it by hand. Not only do the tools provide an easy-to-use interface, but they also perform consistency checks on the configuration file to make sure that the syntax is valid. Also be aware that the configuration programs may overwrite any changes that you make manually.
 | The configuration file which is used in Turbolinux Cluster Server 6, Turbolinux Cluster Server 7 or Turbolinux Cluster Server 8 located at /etc/clusterserver/clusterserver.conf can be used with Turbolinux Cluster LoadBalancer 10 as well. |
6.1. The clusterserver.conf File
The main configuration file is clusterserver.conf. All the Turbolinux Cluster configuration files are stored in the /etc/clusterserver directory, which also contains some sample configuration files, the SSL certificate used by CMC, and a subdirectory with your license files.
The configuration file is similar to the Apache configuration file. There is a global section that applies to the software in general and all clusters. Then there are separate sections to set up specific services, servers, and clusters.
The configuration file is in flat ASCII text, and the format is fairly free-form. Spacing does not matter, although several sections require that all the settings for a particular object be on a single line. Lines beginning with a hash character (#) are ignored as comment lines. Keywords are not case-sensitive, but you must specify the sections in the order shown in this chapter.
The term "section" in the rest of this chapter refers to sections in the configuration file that describe the various functions. Examples of sections are:
The NAT section describes how to set the parameters that will be used if you use the NAT traffic forwarding method
The Servers section lists each server node in the cluster
The ATMPool section defines the Advanced Traffic Managers that will be used to manage the cluster, as well as settings that pertain to the cluster itself