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 More computer ebooks Networking Essential System Administration (3rd Edition)
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 Chapter 1 describes some general principles of system administration and the root account. By the end of this chapter, you'll be thinking like a system administrator. Chapter 2 considers the ways that Unix structure and philosophy affect system administration. It opens with a description of the man online help facility and then goes on to discuss how Unix approaches various operating system functions, including file ownership, privilege, and protection; process creation and control; and device handling. Chapter 3 discusses the administrative uses of Unix commands and capabilities. It also provides approaches to several common administrative tasks. It concludes with a discussion of the cron and syslog facilities and package management systems. Chapter 4 describes how to boot up and shut down Unix systems. It also considers Unix boot scripts in detail, including how to modify them for the needs of your system. It closes with information about how to troubleshoot booting problems. Chapter 5 provides an overview of TCP/IP networking on Unix systems. It focuses on fundamental concepts and configuring TCP/IP client systems, including interface configuration, name resolution, routing, and automatic IP address assignment with DHCP. The chapter concludes with a discussion of network troubleshooting. Chapter 6 details how to add new users to a Unix system. It also discusses Unix login initialization files and groups. It covers user authentication in detail, including both traditional passwords and newer authentication facilities like PAM. The chapter also contains information about using LDAP for user account data. Chapter 7 provides an overview of Unix security issues and solutions to common problems, including how to use Unix groups to allow users to share files and other system resources while maintaining a secure environment. It also discusses optional security-related facilities such as dialup passwords and secondary authentication programs. Chapter 8 returns to the topic of networking. It discusses configuring and managing various networkingdaemons, including those for DNS, DHCP, routing, and NTP. It also contains a discussion of network monitoring and management tools, including the SNMP protocol and tools, Netsaint, RRDTool, and Cricket. Chapter 9 covers all aspects of managing the email subsystem. It covers user mail programs, configuring the POP3 and IMAP protocols, the sendmail and Postfix mail transport agents, and the procmail and fetchmail facilities. Chapter 10 discusses how discrete disk partitions become part of a Unix filesystem. It begins by describing the disk mounting commands and filesystem configuration files. Download free ebook for networking: Essential System Administration (3rd Edition)
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