If you're on the line for UNIX system security, read UNIX Security. The editors of Sys Admin magazine give you a war-chest of tools to prevent your system from being breached. You'll learn about building firewalls, automating network maintenance, managing super-user privileges, restricting machine access, and timing out idle users. Using Linux? AIX? Digital UNIX? Our authors address the specific security concerns of each flavor of UNIX. You'll also...