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Dns local cache – Visara LINCS Central Control User Manual

Page 115

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109

Chapter 13. Communications Menu

707024-002

ICMP Frame Type/Code

The following list describes ICMP type frames for IP protocol notifications:

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A

Clear All IP Summary Counters

When selected, a screen prompting for the supervisory password is displayed. If the correct
password is entered, this utility clears the IP Summary Counters for all classes and displays a
message upon completion.

DNS Local Cache

The Domain Name Service (DNS) is an application layer protocol that runs on top of TCP/IP.
This naming service associates information (host names) with objects (Internet addresses).
The function of DNS is to retrieve and provide information about hosts on the Internet network
by querying and answering queries.

This utility allows the user to view or modify (if the update option selected) the local cache.
The DNS names with their corresponding Internet addresses are displayed. The local cache
is used for name to address mappings for all lines on the LINCS node. The name is displayed
on two lines if the length is greater than 64 characters. The maximum length of the name is
128 characters.