When configuring the Linux kernel, what are the advantages and disadvantages of enabling UTS namespaces? Would the new system be harmed if UTS namespaces were disabled?
UTS Namespaces are per-process namespaces allowing a process to have different namespaces for different resources. For example, a process could have a set of namespaces for the following:
NOTE: the use of namespaces was limited only to root up until version 3.8+ of the Linux Kernel.
You can use the command
Currently, Linux implements six different types of namespaces. The purpose of each namespace is to wrap a particular global system resource in an abstraction that makes it appear to the processes within the namespace that they have their own isolated instance of the global resource. One of the overall goals of namespaces is to support the implementation of containers, a tool for lightweight virtualization (as well as other purposes) that provides a group of processes with the illusion that they are the only processes on the system
Referance -- http://lwn.net/Articles/531114/