Linux Journal: Critical Server Needs and the Linux Kernel

“This article provides some examples of features and mechanisms
needed in the Linux kernel for server nodes operating in
mission-critical environments, such as telecom, where reliability,
performance, availability and security are extremely important.
Here, we discuss four such features: a cluster communication
protocol, support for multiple-FIB, a module to verify digital
signatures of binaries at run time and an efficient low-level
asynchronous event mechanism. For some of these example features,
open-source projects already exist to provide their
implementations. For other features, there currently is no
open-source project that can implement them. For each of our four
examples features, we discuss the feature, its importance, the
advantages it provides, its implementation when available and the
status of its integration with the Linux kernel…”

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