Read e-book online Essential System Administration, 3rd Edition: Tools and PDF

By Æleen Frisch

ISBN-10: 0596003439

ISBN-13: 9780596003432

Crucial procedure Administration,3rd variation is the definitive advisor for Unix process management, protecting all of the primary and crucial projects required to run such divergent Unix structures as AIX, FreeBSD, HP-UX, Linux, Solaris, Tru64 and extra. crucial process management offers a transparent, concise, functional advisor to the real-world concerns that any one chargeable for a Unix procedure faces day-by-day. the hot version of this fundamental reference has been totally up to date for all of the most modern working platforms. much more importantly, it's been broadly revised and improved to contemplate the present process administrative subject matters that directors desire so much. crucial approach Administration,3rd version covers: DHCP, USB units, the most recent automation instruments, SNMP and community administration, LDAP, PAM, and up to date safeguard instruments and strategies.

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Extra resources for Essential System Administration, 3rd Edition: Tools and Techniques for Linux and Unix Administration

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They are discussed in detail in “Role-Based Access Control” in Chapter 7. info Copyright © 2007 O’Reilly & Associates, Inc. All rights reserved. | 9 For example, a non-root user could use this sudo command to shut down the system: $ sudo /sbin/shutdown ... Password: sudo requires only the user’s own password to run the command, not the root password. Once a user has successfully given a password to sudo, she may use it to run additional commands for a limited period of time without having to enter a password again; this period defaults to five minutes.

The alias ALL stands for all hosts or commands, depending on its context. info Copyright © 2007 O’Reilly & Associates, Inc. All rights reserved. CHEM = BACKUP, /usr/local/bin The first entry after the comment grants root access to all commands on all hosts. The second entry applies to members of the chem group (indicated by the initial percent sign), who may run system shutdown and mounting commands on any computer in the CHEM list. The third entry specifies that user chavez may run the mounting commands on the hosts in the PHYSICS list and may also run the swapon command on host achilles.

The FreeBSD sysinstall facility Both the Configure and Index menu items are of interest for general system administration tasks. The latter is especially useful in that it lists individually all the available operations the tool can perform. Tru64: SysMan The Tru64 operating system offers the SysMan facility. 1–enabled browser. SysMan can run in two different modes, as shown in Figure 1-9: as a system administration utility for the local system or as a monitoring and management station for the network.

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Essential System Administration, 3rd Edition: Tools and Techniques for Linux and Unix Administration by Æleen Frisch


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