What does "ntpd -x" mean? Can I run NTP in slewmode?

Solution Unverified - Updated -

Issue

  • What does "ntpd -x" mean
  • As we know the NTP slew mode 'protect' OS against leapsecond so why do not use it always? Can you see disadvantages of such a setup?

Environment

  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • NTP
  • slew mode

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