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Are you tired of faketime or wrangling other tools to handle synching your clock with the target lab? This is the tool for you!

Please place this script into /usr/bin or another directory in sudo secure_path, and don't forget to chmod +x the file after creation

Usage:

sudo lab-time LAB_IP

sudo lab-time stop

sudo lab-time status

sudo lab-time -h | --help

What it does:

  1. Writes an override file at /etc/systemd/timesyncd.conf.d/90-lab-time.conf with your lab DC as the only NTP source.
  2. Restarts systemd-timesyncd and enables NTP.
  3. If available, runs: ntpdate -u to step the clock immediately.
  4. "stop" removes the override and restarts timesyncd so defaults resume.

Examples: sudo lab-time 10.8.10.160 Start syncing to the DC at 10.8.10.160

sudo lab-time status Show current source and last sync time

sudo lab-time stop Return to system defaults

Safety: This simple script does not back up custom timesync settings. On stop it deletes only the lab override and timesyncd falls back to distro defaults.