NTP Services
Check NTP configuration:
- w32tm /query /configuration (checks and shows the NTP configuration)
- w32tm /query /peers (checks and shows the list of NTP servers configured along with their status)
- w32tm /resync /nowait (forces the synchronization of time)
- w32tm /query /source (shows the source of the time)
- w32tm /query /status (shows the service status, use it to check whether the time is coming from the external NTP servers or the cmos clock)
w32tm /dumpreg /subkey:parameters
Check NTP server response:
- w32tm /stripchart /computer:domainnameORipaddress /dataonly /samples:5
In Linux:
- ntpdate -q time.windows.com
- ntpq -p 192.168.1.1
NTP Registry details
Location of NTP server config:
- HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\DateTime\Servers
Location of w32tm service settings:
- HKLM:\SYSTEM\CurrentControlSet\services\W32Time
NTP server Reg keys:
HKLM:\SYSTEM\CurrentControlSet\Services\W32Time\Parameters
HKLM\Software\Policies\Microsoft\W32time\TimeProviders\NtpClient
HKLM\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NTPClient\