Download Essential System Administration, 3rd Edition: Tools and by Æleen Frisch PDF

By Æleen Frisch

Crucial approach Administration,3rd version is the definitive advisor for Unix method management, protecting all of the basic and crucial initiatives required to run such divergent Unix platforms as AIX, FreeBSD, HP-UX, Linux, Solaris, Tru64 and extra. crucial process management presents a transparent, concise, functional consultant to the real-world matters that any one liable for a Unix process faces day-by-day. the hot variation of this critical reference has been absolutely up-to-date for the entire most up-to-date working platforms. much more importantly, it's been largely revised and increased to think about the present process administrative issues that directors desire such a lot. crucial procedure Administration,3rd variation covers: DHCP, USB units, the newest automation instruments, SNMP and community administration, LDAP, PAM, and up to date safeguard instruments and methods.

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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 scope and aesthetic complexity of these tools vary considerably, ranging from shell scripts employing simple selections lists and prompts to form-based utilities running under X. , dropping a user icon on top of a group icon adds that user to that group, dragging a disk icon into the trash unmounts a filesystem, and the like). In this section, we’ll take a look at such tools, beginning with general concepts and then going on to a few practical notes about the tools available on the systems we are considering (usually things I wish I had known about earlier).

My philosophy of system administration boils down to a few basic strategies that can be applied to virtually any of its component tasks: • Know how things work. In these days, when operating systems are marketed as requiring little or no system administration, and the omnipresent simple-to-use tools attempt to make system administration simple for an uninformed novice, someone has to understand the nuances and details of how things really work. It should be you. • Plan it before you do it. • Make it reversible (backups help a lot with this one).

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