The tip was written with Ubuntu in mind as I've only had this problem there. 'ssh' is correct there. I've updated the tip with a comment about using sshd for RH based distros.
@mkzero Any system that needs near or at real-time response shouldn't page to disk those processes that it relies on to serve the those responses. Having some ancillary processes end up on disk isn't a killer, but tends to indicate low memory situations.
swap is a buffer - if you hit it, things slow down then more RAM can be added or config amended. Trying to prematurely optimise can be a bit of a minefield.
A hard tab is the Tab character (ASCII code 9). A soft tab is one made of spaces.