There are extensive syslog-ng how-to discussions in the syslog-ng help forum.

• Syslog-NG archives at the Log Management Blog
• Building a syslog-ng server (with php-syslog-ng)
• Logging with syslog-ng
• Creating a Centralized Secure Log Server with syslog-ng and Stunnel
• Building and configuring syslog-ng on RH AS
• Logging with syslog-ng
• Installing and configuring php-syslog-ng
• Installing and configuring php-syslog-ng - Gentoo Linux
• Logging events to a MySQL database with syslog-ng
• Logging events to a PostgreSQL database
• Encrypting syslog network traffic using stunnel
• Encrypting syslog network traffic using ssh
• Building syslog-ng for Solaris
• Installing syslog-ng on FreeBSD and connecting to Cacti
• Configuring Squid to log to syslog-ng
• Creating a Centralized Secure Log Server with syslog-ng and Stunnel
• How to store firewall logs in a separate file using syslog-ng
• Building and Configuring a Central Logging Server with syslog-ng
• Configuring Syslog-NG using SSH on Solaris
• Ensure Network Safety with Centralized Logging
• Using Syslog-ng as a replacement for Apple's Syslog to centralize logs
• HPC Logging with syslog-ng
• Centralized Logging and Analysis
• A Comprehensive Guide to Building Encrypted, Secure Remote Syslog-ng Servers with the Snort Intrusion Detection System

• Implementation_of_central_logging_server_using_syslog-ng.pdf Δ ... 285,443 bytes ... October 30, 2007, at 08:52 PM
• secure-network-loghost-using-syslog-ng.pdf Δ ... 60,789 bytes ... April 16, 2008, at 07:11 AM
• syslog-ng_centralized_logging.pdf Δ ... 742,669 bytes ... October 30, 2007, at 08:22 PM
• syslogng-and-splunk.pdf Δ ... 836,165 bytes ... October 26, 2007, at 10:03 AM