Preliminary Steps

This section describes two tasks you must perform before you run the installer. These tasks prepare your system for a successful installation.

To Check the Internet Host Table

The system’s Internet host table must contain the system’s fully qualified host name.

Steps

1. Log in as root to the system on which you are installing Java Enterprise System.

2. Open the /etc/hosts file in a text editor.

3. Confirm that the /etc/hosts file contains the system’s fully qualified host name.

   For example, on a system named evaluation.example.com, the /etc/host file includes the following lines:

   # # Internet host table # 127.0.0.1 localhost 192.18.78.28 evaluation.example.com evaluation

   The fully qualified version of the host name must precede the unqualified name. Your /etc/host file must include similar information for your system.

To Disable the sendmail Process

The sendmail process can conflict with Java Enterprise System communications services. Disable it before you install Java Enterprise System.

Steps

1. Run the command to stop the sendmail process:

   /etc/init.d/sendmail stop

2. Run the command to disable sendmail startup:

   mv /etc/init.d/sendmail /etc/init.d/sendmail.disabled