I will use this page to collect Cisco PIX firewall tips and resources. If there is a good resource on the net which is not here, :

• Alias command: Understanding the alias Command for the Cisco Secure PIX Firewall
  
• Basic PIX Firewall Configuration
  
• Cisco PIX Firewall password calculator for Windows 9x/NT/2000/XP
  program produces the encrypted form of PIX passwords without the need to access the device. Networks and security administrators can use it to write authentication informations in the firewall's configuration files completely off-line.
  
• Cisco's PIX Firewall product page
  
• Cisco's online documentation for PIX Firewall v2 - v6
  Installation, configuration, command reference guides
  
• Commands Quick Reference for Cisco Pix
  
• Content Filtering
  • Websense Internet filtering on Cisco PIX Firewall
    transparently monitor, manage and report on traffic flowing from your internal networks to the Internet using pass-through technology
    
  • Sentian's Internet Filtering on Cisco PIX Firewall
    tight integration with Cisco's PIX v6.2
    
• Cisco CSPFA Cisco Secure Pix Firewall Advanced Tests #1, #2, & #3
  Boston Software
  
• FAQs
  • Frequently Asked Questions PIX Firewall
    
  • Frequently Asked Questions Cisco PIX Firewall Manager PDM
    
• Field Notes : reliability, safety or security issues
  
• Help Forum : Tek-Tips PIX Firewall
  
• IPsec
  • Deploying IPSec
    
  • IPSec Tips and Resources
    
  • IPSec User Guide for the Cisco Secure PIX Firewall
    
  • Cisco Secure PIX Firewall VPN Accelerator Card
    
• Netvion's Galileo for Cisco Secure PIX Firewalls
  enables HP OpenView Network Node Manager 6.2 (NNM) to freely discover and manage IP networks through the firewall
  
• NT : Configuring PIX to Allow Remote Access to Shared Folders on an NT Domain
  
• NAT:
  • Network Address Translation NAT tips and resources
    
  • Using nat, global, static, conduit, and access-list Commands and Port Redirection on PIX
    
  • Using NAT and PAT Statements on the Cisco Secure PIX Firewall
    
• Password Recovery for the PIX
  
• Performance Monitoring for the PIX
  
• RFC 1918: Addressing an Unregistered Network Inside the PIX Firewall Using RFC 1918
  
• sh processes : The show processes Command
  
• Software Upgrades for the Cisco Secure PIX Firewall
  
• Soho Networks and the Pix firewall : PPPoE, DHCP
  PIX622 or later needed for PPPoE support
• SSH : Using SSH for Remote System Management
  
• Stateful Firewall Security for Cisco's PIX Firewall
  
• Syslog Messages for PIX
  
• Telnet : Securing Your Telnet Connection to the Outside Interface
  
• Top Issues Cisco PIX Firewall
  
• VPN
  • Configuring a Simple PIX-to-PIX VPN Tunnel Using IPSec
    
  • Top Issues PIX VPN
    
• W2K : Configuring Cisco Secure PIX Firewall 6.x and Cisco VPN Client 3.5 for Windows with Microsoft Windows 2000 IAS RADIUS Authentication