examples: improve chrony.conf examples

Add a note that three servers is the generally recommended minimum for
an NTP client to be able to detect a falseticker. Mention that the pool
directive uses four servers. Update the links to the pool join page and
list of public servers.
This commit is contained in:
Miroslav Lichvar
2025-06-11 14:53:47 +02:00
parent e463fcab49
commit 4a8da7e02d
3 changed files with 12 additions and 5 deletions

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@@ -1,4 +1,4 @@
# Use public NTP servers from the pool.ntp.org project.
# Use four public NTP servers from the pool.ntp.org project.
pool pool.ntp.org iburst
# Record the rate at which the system clock gains/losses time.

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@@ -1,5 +1,10 @@
# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (https://www.pool.ntp.org/join.html).
# Note: The general recommendation for an NTP client is to have at least
# three NTP servers to be able to detect one server providing incorrect
# time (falseticker).
# Use four public NTP servers from the pool.ntp.org project. If this
# host has a static public IP address, please consider joining the pool:
# https://www.ntppool.org/join.html
pool pool.ntp.org iburst
# Record the rate at which the system clock gains/losses time.

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@@ -21,10 +21,12 @@
#######################################################################
### SPECIFY YOUR NTP SERVERS
# Most computers using chrony will send measurement requests to one or
# more 'NTP servers'. You will probably find that your Internet Service
# more NTP servers. The general recommendation is to have at least
# three NTP servers to be able to detect one server providing incorrect
# time (falseticker). You will probably find that your Internet Service
# Provider or company have one or more NTP servers that you can specify.
# Failing that, there are a lot of public NTP servers. There is a list
# you can access at http://support.ntp.org/bin/view/Servers/WebHome or
# you can access at https://support.ntp.org/bin/view/Servers/WebHome or
# you can use servers from the pool.ntp.org project.
! server ntp1.example.net iburst