[ntp:questions] Synchronizing Linux clients with Windows Server 2003 NTP

Steve Kostecke kostecke at ntp.isc.org
Thu Jan 18 18:54:47 UTC 2007

On 2007-01-18, Ry <malayter at gmail.com> wrote:
> Richard B. Gilbert wrote:
>> Isn't port 123 UDP inbound required as well?
> Not on a stateful firewall, which are the most common type these days.

Port 123/UDP inbound must be open for NTP to work. It can either be
opened automatically (by a stateful firewall or NAT) or manually. But it
must be opened.

Steve Kostecke <kostecke at ntp.isc.org>
NTP Public Services Project - http://ntp.isc.org/

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