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I have set my NTP config to this:

# local server
fudge stratum 10

# Only allow read-only access from localhost
restrict -4 default kod nomodify notrap nopeer noquery
restrict -6 default kod nomodify notrap nopeer noquery

restrict ::1

# Location of drift file
driftfile /var/lib/ntp/ntp.drift
logfile /var/log/ntp.log

Leaving public server definitions out, assuming that this would server my machines time.

Now, I set my date with date --set="+5 minutes", restart NTPd systemctl restart ntpd, and when I test my time server from Windows machine, I get:

An error occured while Windows was synchronizing with
The peer is unreachable.

Whenever I add other server definitions to the configuration, it works.

How would I set up an NTP server that'd serve manually set time?

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up vote 0 down vote accepted

The problem was that Local Clock (LCL) explicitly needs address instead of the default loopback, what I had assumed.

Quite tricky - that's what happens when you don't copy-paste configurations.

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