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  To find out what the weather is like, sys admin columnist Charly Kühnast no longer needs to go outdoors get wet, blown away, frozen to death, or sunburned.

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• Charly's Column

  Charly may be a traditionalist with sync-unfriendly duplicate home directories, but a little utility called Unison helps keep his data consistent . This month you’ll learn why Rsync sometimes isn’t enough.

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  Parallel SSH is the name of an easy-to-configure tool that our resident sys admin, Charly, now routinely deploys whenever he needs to launch the same programs, copy the same files, or kill the same processes simultaneously on multiple computers.

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• Charly's Column

  If protocols were human beings, NNTP would be a kind and slightly confused person that always believes the best of other people – even if they drop trash in the mailbox. Postfilter gives NNTP a watchdog.

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