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Sun ONE Web Server 6.1 Installation and Migration Guide

Chapter 2
Before You Install Sun ONE Web Server

The following sections provide the information you need to know before you install Sun ONE Web Server.

This chapter contains the following sections:

Supported Platforms

The following table describes the platform support for Sun ONE Web Server:

Table 2-1  Sun ONE Web Server 6.1 Supported Platforms



Operating System


Required Memory

Recommended Memory

Recommended Disk Space



IBM AIX 5.1*, 5.2

64 MB

192 MB

256 MB



HP-UX 11i*

64 MB


256 MB


Intel x86

Windows 2000 Server and XP

64 MB


256 MB



Solaris 8, 9

64 MB


256 MB



Solaris 9

64 MB


256 MB


Intel x86

Red Hat Linux Advanced Server 2.1

    Kernel 2.4.9-e.3smp



You may also create a symbolic link from to, although we recommend that you install ncurses4-5.0-5.i386.rpm.

64 MB


256 MB

*Supported via binary compatibility.

**As of iPlanet Web Server 6.0, older SPARC CPUs are not supported. Sun ONE Web Server 6.1 continues to support the UltraSPARC architecture.

Required Patches

You are recommended to update your operating system with the latest applicable patches.

For the Solaris OE platform, Sun's recommended patch list can be found in the following location:


Patch 108993-22 (SPARC) or 108994-22 (x86) is required on Solaris 8 when Solaris is configured to use LDAP for authentication.

Supported Browsers

Sun ONE Web Server runs on the following browsers:

Hardware and Software Requirements

In addition to the UNIX, Linux, or Windows operating system memory and disk space requirements listed above, your computer must have the following hardware and software:

All Platforms



Other Technical Requirements

Once you have the proper hardware and software necessary to install Sun ONE Web Server, you should make sure that you meet the following requirements:

Creating a DNS Alias for the Server

If your server will run on one machine among many in a network, you or your system administrator should set up a DNS CNAME record or an alias that points to the actual server machine. Later, you can change the actual hostname or IP address of the server machine without having to change all URLs that point to the server machine.

For example, you might call the server and then use an alias like So the URLs to documents on your server would always use the www alias instead of my_server.

UNIX and Linux User Accounts for the Server

When the Sun ONE Web Server starts, it runs with a UNIX or Linux user account that you specify during installation. Any child processes of the server are created with this account as the owner. It is best to create a UNIX or Linux account for the server that has restricted access to your system resources. The account needs read permissions for the configuration files and write permissions for the logs directory.

On Solaris OE, by default, a user and group account named webservd is created for Sun ONE Web Server if it does not already exist.

On non-Solaris UNIX platforms (where the webservd user/group cannot be reserved outright), if you don’t create a dedicated user account for Sun ONE Web Server, you can use the account with the name nobody. You might not however want to give the user nobody permissions for running the Sun ONE Web Server. In addition, the user nobody might not work on some systems if a negative uid/gid is assigned during installation. Check the /etc/passwd file to see if the uid for nobody exists, and make sure it is greater than 0.


It’s strongly recommended that you use a dedicated account for the server.

The Administration Server can also run with a user account that has write permissions to the configuration files for all installed servers. However, it’s much easier to run the Administration Server as root because then the Administration Server user can start and stop servers with port numbers less than 1024. (Port numbers greater than 1024 can be started by any user).

The user you use to run the Sun ONE Web Server (often nobody) should be in the same group as the user you use to run the Administration Server (often root).


When changing the server user, remove any /tmp/lock.* files created in the /tmp directory.

Windows User Accounts for the Server

You should create a Windows user account for your Sun ONE Web Server. It should have restricted access to your system resources and run under a nonprivileged system user account (one that has a limited set of system permissions to your system). When the server starts, it runs with this user account. Any server extension modules the server uses are created with this user account as the owner.

During installation, the server uses the LocalSystem account, not the user account you created. Once you start and run the server, you should use the user account you created. You can change the user account for the server after the installation process. You can configure that user account so that it has permissions to get files on another computer, so that your server can serve files that are mounted from another computer.

In addition, the user account you create for the server should belong to a group that contains the server users for all Sun ONE servers so that multiple servers can have access to shared files.


It’s strongly recommended that you use a dedicated account for the server.

Choosing Unique Port Numbers

You need multiple port numbers: one for the Administration Server and one for each instance of Sun ONE Web Server. The Administration Server is a special instance of the Sun ONE Web Server that you use to manage your Sun ONE Web Server.

The standard web server port number is 80 and the standard SSL-enabled web server port number is 443, but you can install Sun ONE Web Server to use any port. If you use a port other than the default port (port 80), the URL used to gain access to your home page changes. For example, if your computer is called and you choose port 9753, your server’s URL will be

You should choose a random number for the Administration Server to make it harder for anyone to breach your server. When you configure your server, you use the Administration Server’s port number. For example, for server, the server’s URL could be

Make sure the port you choose isn’t already in use. On UNIX and Linux systems, you can check the file /etc/services on the server machine to make sure you don’t assign a port number that is reserved for another service. If you choose a port that is currently being used by another service, the installation program prompts you for another port.


If you use UNIX or Linux, and you choose a server port number lower than 1024, you must be logged in as root to start the server. After the server binds to the port, the server changes from the root user account to the user account you specify. If you choose a port number higher than 1024, you don’t have to be the root user to start the server.

Installation Overview

You can install Sun ONE Web Server by downloading it off the Sun Products download web site:

You can also install it from the Sun ONE Web Server CD. In addition, the Sun ONE Web Server software comes with the 5.2 version of Sun ONE Directory Server on a Companion CD.

When you install Sun ONE Web Server, you follow these basic steps:

  1. If you have iPlanet Web Server 4.1 already installed and plan to migrate that server to work with Sun ONE Web Server 6.1, shut down the 4.1 web server and save a back up of all its files in the server root.

  2. Note

    Direct migration from a version of iPlanet Web Server that is lower than 4.1 to Sun ONE Web Server 6.1 is not supported. You must first migrate your legacy server to iPlanet Web Server 4.1 and then to Sun ONE Web Server 6.1.

    You must install Sun ONE Web Server 6.1 in a separate directory. For instance, if a previous version of the web server is installed in C:\netscape\server4, install Sun ONE Web Server 6.1 in C:\Sun\WebServer6.1.

    On Windows you may also want to save copies of files added to Winnt/System32 during server installation, and copies of the registry as well. For more information on saving copies of the registry, see your operating system documentation.

  3. If you do not already have a browser installed, install one. For a list of supported browsers, see Supported Browsers.
  4. If you are planning to use users and groups for access control, and you do not have an Sun ONE Directory Server installed, install it from the Companion CD included with your Sun ONE Web Server software.
  5. Install and configure Sun ONE Web Server.

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