This book introduces the installation, management and maintenance of the Linux system as well as the server configuration. The main contents include the fundamental knowledge of Linux and how to install and delete the Linux system, as well as the graphic interface and character interface operation of Linux, the using of the common Linux directives, the user and group user management, the disc and file system management, the software package management, the daily management and maintenance of Linux, the Shell programming, the basic network configuration for Linux, the configuration of the remote management server, the configuration of NFS server, Samba server, DHCP server, DNS server, Web server, FTP sever, and Sendmail server. This book has a clear structure and it projects the applicability. This book is suitable for the Linux lovers, and Linux management and maintenance personnel, it can also be used as the students of the relative majors in the colleges and universities and the training organization for references.