A scanner is a program that automatically detects security weaknesses in a remote or localhost.
Scanners are important to Internet security because they reveal weaknesses in the network.
Setting up a Linux Log Server to enhance System Security. In this feature story we present a very comprehensive guide to setting up a secure log server, by Eric Hines. Mr. Hines goes into very good detail and covers everything from building and configuring syslogd to securing the remote log server. The US and UK governments want to install a device on public networks to monitor traffic for suspected criminal activities. Chris Parker explains.