Authoritative Answers to All Your Linux Security Questions—Specifically for Linux AdministratorsThis is the most complete, most advanced guide to Linux security you"ll find anywhere. Written by a Linux security expert with over a decade of experience, Linux Security teaches you, step-by-step, all the standard and advanced techniques you need to know to keep your Linux environment safe from threats of all kinds. Hundreds of clear, consistent examples illustrate these techniques in detail†so you stay on track and accomplish all your goals. Coverage includes:Understanding information and system security proceduresDeveloping a corporate security policyDesigning and deploying an effective system and network monitoring strategyManaging the network services offered by Linux serversUnderstanding Sendmail security, including authentication and privacyProviding application-level mail security using PGPDesigning and deploying an Apache HTTP server, including SSL extensionsSecuring your Samba serverBuilding a network layer firewall using IPtables and Linux kernel v.2.4Using the NEC SOCKS5 transport layer firewallDeploying the TIS firewall toolkitOffering secure remote connectivity with IPsec and PPTP VPNsAdding strong user authentication to Linux servers using KerberosUnderstanding the Linux Pluggable Authentication Modules (PAM)