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Merge branch 'linux_fds'

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Brandon Philips 2015-08-29 08:34:38 -07:00
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## File descriptors
By default, only the `stdin`, `stdout` and `stderr` file descriptors are kept open for the application by the runtime.
The runtime may pass additional file descriptors to the application to support features such as [socket activation](http://0pointer.de/blog/projects/socket-activated-containers.html).
Some of the file descriptors may be redirected to `/dev/null` even though they are open.