These instructions apply only to ServletExec 4.1.1 or 4.2 with ArcIMS 4.0.1, using a version of the Apache web server that is supported by ArcIMS 4.0.1. on a supported Unix operating system.
Note: In order to understand which versions of Apache are supported on which brands/versions of Unix (Linux, Solaris, HP-UX, etc...) you should access the ArcIMS 4.0.1 System Requirements area of the ESRI website.

Instructions for integrating other versions of ServletExec and ArcIMS can be found here.

The instructions at this website are provided by New Atlanta Communications.
At the time of this writing, ESRI does not provide its own steps for installation and configuration of ServletExec and ArcIMS on a Unix platform.
However, in the event that they add such steps later,
A listing of all such ESRI knowledge base articles can be found here.

 

Before installing ServletExec version 4.1.1 or 4.2 for use with ArcIMS 4.0.1, you must first install the Java 2 SDK, Standard Edition.
For Red Hat Linux 7.1, ESRI appears to recommend J2SDK version 1.4.0
The SDK/JDK 1.4.0 can be freely downloaded from Sun's Website.
For Sun Solaris 7, ESRI appears to recommend version J2SDK 1.3.1_02
The SDK/JDK 1.3.1 can be freely downloaded from Sun's website
Note: Another term for JDK is SDK (Software Development Kit).

While ServletExec itself is officially supported with other versions of JDK/SDK, and other Unix OS flavors than those listed above, please be aware that since you'll be running the ArcIMS Connector Servlet inside of ServletExec and since ESRI has some specific requirements concerning ArcIMS, we encourage you to check with ESRI to ensure that you are using a version of JDK/SDK (and Operating System and webserver) which ArcIMS 4.0.1 supports.
The ArcIMS 4.0.1 System Requirements section of the ESRI website would be a good place to begin looking for this sort of information.

ESRI also requires that the installed copy of ServletExec be a fully enabled/licensed* one prior to running ArcIMS. (An unlicensed copy of ServletExec will not be sufficient for running ArcIMS.)

*You may fully enable your free copy of ServletExec by:

1. Entering the key that you receive when you purchase a ServletExec license.
2. Obtaining a 30-day evaluation key for free, and entering it.

In either case, the key (registration number) is entered in your browser via the Administration tool which is included with ServletExec.
See step 'b' below for specific information explaining how to enter your key after you have installed and tested ServletExec.

Before installing ServletExec with Apache, you should stop the Apache web server.

Installing ServletExec:

Follow the ServletExec Installation Guide as the ServletExec installation script prompts you through the installation process.

Choose 'yes' when prompted by the ServletExec AS installer to allow the installer to update httpd.conf for you.

After installing ServletExec with the Apache web server you should do the following:

1. start up the Apache web server.
2. open a browser window and access http://<hostname*>/ to verify that your web server is still able to serve you a simple static html page. If it cannot, then something is wrong with your web server. Diagnose and fix that before continuing.
3. start up your ServletExec instance by running the StartServletExec script file from a command window

To verify the ServletExec installation was successful:

a. Open a browser window and type:

http://<hostname*>/servlet/TestServlet