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Enhanced security network time synchronization device and method

  • US 5,968,133 A
  • Filed: 01/10/1997
  • Issued: 10/19/1999
  • Est. Priority Date: 01/10/1997
  • Status: Expired due to Term
First Claim
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1. A method of determining time in a host coupled to a network having one or more accurate time keepers comprising the steps of:

  • requesting time from an external server via an entity operating in an external portion of a firewall system;

    receiving a communication in the external portion of the firewall system from the external server containing an indication of time; and

    adjusting a clock register based upon the indication of time received from the external server wherein the clock register may be read by entities operating in an internal portion of the firewall system which entities may not directly communicate with the entity operating in the external portion of the firewall system.

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