Time Syncing Through a Firewall Without NTP?

Posted by Cliff on Saturday July 30, 2005 @10:54AM from the route-around-the-problem dept.

dvdsmith asks: "Say are dealing with a Windows network that for internet access must pass through a firewall that you have no control over. Said firewall apparently blocks the known time protocols (NTP,daytime,etc) and you know from experience that those who control it will not allow any exceptions. If one sets up an internal NTP server (Windows XP or 2000 workstation) for all others to sync from, is there another reliable method for updating time on the server, like pulling from a Java website? See the time.gov website as an example. Any ideas?"

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radio by F�an�ro · 2005-07-30 11:11 · Score: 4, Interesting

you could build a device that gets the time via radio (LINK) or buy one that does this (like a gps receiver?).

or if any udp port is open in the firewall, set up a ntp server outside that answers on that port