diff -up chrony-4.1/examples/chrony.conf.example2.defconfig chrony-4.1/examples/chrony.conf.example2

--- chrony-4.1/examples/chrony.conf.example2.defconfig	2021-05-12 13:06:15.000000000 +0200

+++ chrony-4.1/examples/chrony.conf.example2	2019-05-10 12:22:57.000000000 +0200

@@ -1,5 +1,5 @@

 # Use public servers from the pool.ntp.org project.

-# Please consider joining the pool (https://www.pool.ntp.org/join.html).

+# Please consider joining the pool (http://www.pool.ntp.org/join.html).

 pool pool.ntp.org iburst

 # Record the rate at which the system clock gains/losses time.

@@ -25,18 +25,9 @@ rtcsync

 # Serve time even if not synchronized to a time source.

 #local stratum 10

-# Require authentication (nts or key option) for all NTP sources.

-#authselectmode require

-

 # Specify file containing keys for NTP authentication.

 #keyfile /etc/chrony.keys

-# Save NTS keys and cookies.

-ntsdumpdir /var/lib/chrony

-

-# Insert/delete leap seconds by slewing instead of stepping.

-#leapsecmode slew

-

 # Get TAI-UTC offset and leap seconds from the system tz database.

 #leapsectz right/UTC