Syslog-ng Web interface, front end or GUI tools

php-syslog-ng CL

php-syslog-ng is a front-end for viewing syslog-ng messages logged to MySQL. It lets you quickly and easily manage logs from many hosts. It features customized searches based on host, facility, priority, date/time, and the content of the log messages. It also has a tail mode, with customized filters, that enables you to monitor your systems in near real time.

Downloads and Documentation

http://www.phpwizardry.com/php-syslog-ng.php

php-syslog-ng

php-syslog-ng is a front-end for viewing syslog-ng messages logged to MySQL in real-time. It features customized searches based on device, time, priority, message, and date.

Downloads and Documentation

http://www.vermeer.org/projects/php-syslog-ng

perl-syslog-ng

A Front-End written in Perl to allow easy access to messages received by a syslog-ng server, with extra features such as device groups and access control based on user profiles.

Downloads and Documentation

http://www.devnull.com.br/perl-syslog-ng/

NagMIN

NagMIN is a enterprise class Network Monitoring System, Powered by Nagios, WebMIN, RRDtool, Nmap, Fping, Net::SNMP, Syslog-NG and other open source software providing web-based administration, and enhanced web portal to help you manage your network.

Downloads and Documentation

http://nagmin.sourceforge.net/