Installing and Configuring the Zeus Web Server on CentOS (Historical Reference)

Introduction to Zeus Web Server

Zeus was a once-prominent high-performance web server known for its efficient event-driven architecture. Under similar hardware conditions, its concurrent processing capability and resource utilization were considered superior to the mainstream Apache 1.x/2.x versions of the time, making it particularly suitable for high-traffic, memory-constrained standalone server scenarios. This document aims to record the historical installation process for Zeus version 4.3r3 on CentOS 4.4. Please note that Zeus server software is no longer maintained; this article is for technical historical reference only. Modern environments should use mainstream servers like Nginx, Apache 2.4+, or Caddy.

Pre-installation Preparation

The traditional LAMP stack installation order was typically: MySQL → PHP → Web Server (Zeus). Before installing Zeus, ensure any other running web server (e.g., Apache) is stopped.

/usr/local/apache/bin/apachectl stop

Installing Zeus 4.3r3

Step 1: Extract the Installation Package

Assuming the downloaded packages are named Zeus_4.3_Linux_crack.zip and Zeus_43_Linux-x86.tgz.

unzip Zeus_4.3_Linux_crack.zip
tar xvzf Zeus_43_Linux-x86.tgz
cd Zeus_43_Linux-x86/

Step 2: Run the Installer

Execute the installation script and follow the prompts:

./zinstall

Key prompts and inputs during installation (example inputs or defaults in parentheses):

1. After reading the license agreement, press Ctrl+C and type accept.
2. Installation Path: Where should the product be installed? [/usr/local/zeus]: (Enter /home/zeus or press Enter for default).
3. Installation Type: Choose installation option [1]: (Select 1 for full installation of admin and web servers).
4. License Key: Enter the key filename, or leave blank for unlicensed mode: (Enter the path to the license file, e.g., ./license.key).
5. Set Admin Password: Set a password for the admin server.
6. SNMP Support: Enable SNMP support for web package? Y/N [N]: (Typically N).
7. Run User and Group: What USER do you want to run zeus?[nobody]: and What Group do you want to run zeus?[nobody]: (A dedicated low-privilege user like zeus was recommended, but many historical tutorials used nobody).
8. Start at Boot: Would you like Zeus to start at boot time? Y/N [Y]: (Recommended Y).

After installation, use these commands to manage the Zeus service:

• Start: /usr/local/zeus/start-zeus
• Stop: /usr/local/zeus/stop-zeus
• Restart: /usr/local/zeus/restart-zeus

Note: Regarding "crack" steps. The original document mentioned replacing the zeus.web binary, which involves software copyright issues and security risks. This article does not encourage or provide specific cracking methods. Always use legally licensed software.

Configuring PHP Support (FastCGI)

Zeus calls an external PHP interpreter via FastCGI. Assume PHP is already compiled and installed on the system (path: /usr/local/php/bin/php).

Step 1: Replace the Built-in PHP Interpreter

rm /home/zeus/php/php.zeus
ln -s /usr/local/php/bin/php /home/zeus/php/php.zeus

Step 2: Configure via the Web Admin Interface

Access the Zeus admin interface (default: http://server_ip:9090, user: admin, password set during installation).

1. Create a Virtual Server

• Virtual Server Name: A server identifier.
• Host Name and Port: Domain and listening port (e.g., www.example.com:80).
• Document Root: Website root directory.
• Aliases: Other bound domains, comma-separated.

2. Enable and Configure FastCGI

In the virtual server configuration, find the FastCGI section:

• Enabling Support for FastCGI Programs: Select Enabled.
• In Adding a FastCGI Remote Responder:
  • Directory name: /usr/local/php/bin/php (PHP interpreter path).
  • Location: Machine name: localhost.
  • Port: 8002 (or another unused port).
• Click Apply Change.

3. Configure PHP File Handler

Go to URL Handling → Handlers:

• In Adding a Handler:
  • File Extension: php.
  • Specify the path and filename of the handler, relative to the document root: /usr/local/php/bin/php (should match the Directory name above).
  • HTTP 404 errors are handled by: Select The handler.
• Click Apply.

4. Other Important Settings

• Directory Requests: Set index files (e.g., index.php, index.html) and ensure Directory Listing is Disabled.
• htaccess Support: Enable if support for .htaccess files (e.g., for rewrite rules) is needed.

5. Commit Configuration

After all changes, a prompt typically appears at the top. Click a link like “This configuration has been modified...” and select “Commit” to apply the configuration.

Summary and Security Reminder

This article reviewed the historical process of deploying the Zeus web server on an older CentOS version. Today, Zeus is no longer an active project, lacks security updates, and is unsuitable for production. For a high-performance web server, consider migrating to modern solutions like Nginx, Apache HTTP Server 2.4+, or Caddy, which have active communities, comprehensive documentation, and ongoing security maintenance.