By Nate Campi
Whether you would like a community of ten Linux desktops and a server or an information heart with a couple of thousand UNIX nodes, you want to understand how to automate a lot of the deploy, configuration, and traditional process management.
Build your community as soon as utilizing cfengine, and the community construct will paintings, with no consumer intervention, on any you wish. Automating Linux and Unix process management, moment Edition is exclusive in its concentrate on the right way to make the process administrator's activity more uncomplicated and extra effective: rather than simply handling the method administrator's time, the e-book explains the expertise to automate repetitive projects and the technique to automate successfully.
- Both new and pro pros will benefit from industry–leading insights into the automation approach.
- System directors will reach a radical snatch of cfengine, kickstart, and shell scripting for automation.
- After examining all chapters and following all routines during this publication, the reader may be in a position to manage something from a Linux facts middle to a small workplace community.
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Additional resources for Automating Linux and Unix System Administration
To do so, place these options in the ]qpdkneva`[gauo file at the beginning of the line and follow the entry with a space character. No spaces are allowed within the option string unless they are contained within double quotes. If you specify multiple options, you must separate them with commas. Here’s a list of the options and a brief description of each (the ood` man page contains more detailed information): bnki9l]ppanj)heop: This option can specify a list of hosts from which the connection must be made.
Ideally, you would have a list of every assumption your automation system makes about every system. , the more administrators), the harder you should try. Another concern, if you have more than one or two administrators for a system, is an audit trail. Who has been accessing each system and what have they been doing? Most systems provide process accounting—a log of every executed process, the user who executed it, and the amount of time it was running. You usually have to enable this logging because it can consume quite a bit of drive space.
Deciding on Push vs. Pull You can take one of two main approaches when configuring, maintaining, and modifying systems: the “push” method or the “pull” method. The “push” method is when you have one or more systems contact the rest of the systems and perform the necessary tasks. 13 14 CHAPTER 1 N INTR ODU C ING THE B A S IC S OF A U TOM A T I O N You implement the “pull” method by having the systems contact one or more servers on a regular basis to receive configuration instructions and configure themselves.