syslog-ng as the name shows is a syslogd replacement, but with new functionality for the new generation. The original syslogd allows messages only to be sorted based on priority/facility pair, syslog-ng adds the possibility to filter based on message contents using regular expressions. The new configuration scheme is intuitive and powerful.
3206d8d58deacf795b7364226adf6d2753d91319fadfccbc88ec09ed6cc1818e