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Absolute FreeBSD, 2nd Edition by Michael W. Lucas

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Diskless FreeBSD

While FreeBSD isn't difficult to manage, dozens or hundreds of nearly identical systems can become quite a burden. One way to reduce your maintenance overhead is to use diskless systems. Diskless systems are not forbidden to have hard drives; rather, they load their kernel and operating system from an NFS server elsewhere on the network.

Why use a diskless system for your server farm? Multiple systems can boot off of a single NFS server, centralizing all patch and package management. This is excellent for collections of terminals, computation clusters, and other environments where you have large numbers of identical systems. Rolling out an operating system update becomes a simple matter of replacing files on the NFS server. Similarly, ...

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