Nxlog is a modular, multithreaded, high-performance Log management solution that supports multiple platforms. Its concept resembles Syslog-ng and Rsyslog. But not limited to use in Unix/syslog.
Nxlog 1.2.457 This is the first public release version.
Syslog-ng a http://www.aliyun.com/zixun/aggregation/8912.html "> Design principle is to build better message filtering granularity. Syslog-ng can perform filtering based on content and priority/facility. Another design principle is easier to carry out different firewall network segment information forwarding, it supports the host chain, even if the log message through a lot of computer forwarding, you can find the original host address and the entire forwarding chain. The final design principle is to make the configuration file as strong and concise as possible.
Download Address: http://sourceforge.net/projects/nxlog-ce/files/