This book starts from basics & takes you to advance levels of linux. everything has been explained by giving examples. Proper lab setup along with diagrams has been given so that you can constructs the labs yourself & do the practice. It is based on Red Hat Enterprise Linux 5 (RHEL5).
It covers permissions, raid, lvm, quota, sudo, remote installation, kickstart, apache web server, ftp server, nfs, nis, squid proxy server, dns, postfix mail server, dhcp, syslog, cups, xinetd, tcp-wrappers, selinux, firewall, ipv6, pam, ssh, automounter etc in details.