BitNinja constantly monitors the number of simultaneous incoming and outgoing connections and blocks DoS (Denial of Service) attacks.

LogExpert is a Windows tail program, a GUI replacement for the Unix tail command.

Nagios Log Server is centralized log management, monitoring & analysis software. Quickly & easily manage, monitor and analyze log data.

Scalyr is a server log monitoring tool.

NetCrunch is a Windows Server–based network monitoring tool that boasts high performance and impressive scalability even in a single-server deployment.

glogg is a multi-platform GUI application to browse and search through long or complex log files.

AWStats is an open source Web analytics reporting tool, suitable for analyzing data from Internet services such as web, streaming media, mail, and FTP servers…

SolarWinds Log & Event Manager is a log management software with advanced SIEM capabilities to simplify IT security, compliance, etc.