Automating Linux and Unix System Administration (2nd by Kirk Bauer, Nate Campi

Automating Linux and Unix System Administration (2nd by Kirk Bauer, Nate Campi

By Kirk Bauer, Nate Campi

Even if you wish a community of ten Linux computers and a server or an information heart with a couple of thousand UNIX nodes, you must know the way to automate a lot of the deploy, configuration, and traditional procedure administration.

Build your community as soon as utilizing cfengine, and the community construct will paintings, with no person intervention, on any you wish. Automating Linux and Unix process management, moment version is exclusive in its concentrate on the right way to make the process administrator's task more straightforward and extra effective: rather than simply dealing with the approach administrator's time, the booklet explains the expertise to automate repetitive initiatives and the method to automate successfully.

* either new and pro execs will take advantage of industry–leading insights into the automation process.
*System directors will reach a radical clutch of cfengine, kickstart, and shell scripting for automation.
*After studying all chapters and following all workouts during this ebook, the reader could be in a position to arrange whatever from a Linux information heart to a small workplace community.

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These staff members understand the established requirements for advance notifications to customers, partners, and users. They usually also understand internal or external factors that would affect whether a scheduled time is a good fit for the business. You can’t decide on your own to make changes in an unannounced window, or perform maintenance that takes down some functionality of your applications or systems without prior approval. You need to schedule downtime and/or changes that affect or might affect production services with your stakeholders.

If you can automatically upgrade but can’t automatically configure Apache, you might want to ADDRESSTHATTASKNEXT%VENIFYOUHAVEALREADYAUTOMATEDTHISTASK YOUNEEDTOMAKE sure the automation event is triggered after the software is updated. You might also need to update a binary checksum database or services on your systems. Whether or not these tasks are automated, you need to be sure they will not be forgotten. C HA P TER 1 N I N T R O D U C I N G T H E B A S I C S O F A U T O M A T I O N Homogenizing Your Systems Most people reading this book will have a variety of UNIX systems within their network.

Similarly, your automation might destroy changes the user wanted to make on his or her system—you would have to work with the user to find a different way to make the change. What you have to worry about the most are any interactions that might cause problems with the system. If, for example, your automation system assumes that a certain account resides on the system, it might not operate without it. This isn’t a problem— unless, of course, somebody manually deletes that user. Ideally, you would have a list of every assumption your automation system makes about every system.

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