In fact there is a lot of overlap. A NTP server can be three things at the same time: a "site" server for a Company/ISP/University, a "public server" named on http://support.ntp.org/bin/view/Servers/WebHome and a "pool server" accessed via pool.ntp.org. There's also no shortage of private network servers out there not accessible from the internet-at-large.
My gut feeling is that inclusion of pool.ntp.org into many ISP's default setups and OS distributions, has greatly lessened the dependence on the traditional "public server" list. This was a stated goal. Tim. From: [email protected] [mailto:[email protected]] On Behalf Of AlbyVA Sent: Monday, June 11, 2012 4:48 PM To: [email protected] Subject: [Pool] Market Share (Public NTP Pool) I was wondering, how many people, businesses, etc depend on the Public NTP Pool vs. private NTP servers? I see the numbers on total v4/v6 servers in the pool, but does that really translate into a meaningful impact to the world? If all the ntp.org<http://ntp.org> publicly run servers shut down for a day, a week, a month, would the world be thrown into time sync chaos? -Alby
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