How to check ownership of a domain name

  

This topic provides instructions on how to configure Network Time Protocol (NTP) servers. NTP is a protocol for synchronizing the times of host computers over a network. For more information about NTP, see the home page (http://www.ntp.org/).

Note: Security Analytics Core hosts must be able to communicate with the Security Analytics host using UDP port 123 in order to perform NTP time synchronization.

You can in the view administration > system > NTP settings configure one or more NTP servers. After configuring an NTP server, Security Analytics uses NTP to synchronize the times of the host computers. You configure multiple NTP servers for failover. This chapter contains the following topics:

  • Adding NTP servers
  • Change NTP servers

Adding NTP servers

To add an NTP server:

  1. Select in the menu Security Analytics the options Administration> System out.
  2. In the Options area, select the option NTP settings out.
    The NTP Settings section appears, prompting you for the host name (IP address or fully qualified domain name) of an NTP server.
  3. Enter the IP address or fully qualified domain name of an NTP server.
    If the host name syntax is invalid, Security Analytics will disable the buttons Add and Apply and the message Invalid host name entered is displayed.
  4. click on Add.
  • If the host name syntax is valid and Security Analytics can reach the server, the message will be Validate displayed.
  • If the host name syntax is valid and Security Analytics cannot reach a server, the following message is displayed, where Hostname represents the host name you wanted to add: The NTP server Hostname is not available. Check the address and the firewall settings. 
  1. click on Apply.
    A dialog box displays a notification that the settings have been saved and asks for your confirmation that you want to apply the settings now.
  2. click on Yes.
    The specified NTP server now ensures that the times of your host computer are synchronized. If you want to configure multiple NTP servers and one server has failed, Security Analytics fails over to the next configured server.

Further information on parameters and their description can be found in the "NTP Settings" area.

Changing NTP servers

How to change an existing NTP server:

  1. Select in the menu Security Analytics the options Administration> System out.
  2. In the Options area, select the option NTP settings out.
    The “NTP Settings” area is displayed.
     
  3. Double-click the host name of the NTP serveryou want to change.
    The "NTP server" text field can now be edited and the "Update" and "Cancel" buttons are displayed.
  4. Edit the host name, click To update and then on Apply. (Click on Abortbefore you on Apply click to cancel editing.)
    Security Analytics changes the host name according to the changes you made.
Table of Contents> Additional Procedures> Configuring NTP Servers