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--- virtual_front_panel [2023/11/06 19:32] – walkeradmin
+++ virtual_front_panel [2023/11/06 19:45] – walkeradmin
@@ Line 7: / Line 7: @@
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+----
 ==== Running the Virtual Front Panel ====
 To invoke the front panel, you need to SSH in to the unit, then you can start the virtual front panel by entering:
@@ Line 54: / Line 55: @@
 </file>
 \\
+----
 ==== Setting NTP Servers from the Virtual Front Panel ====
 To set the NTP time from the virtual front panel, use the following keys:
@@ Line 101: / Line 103: @@
 </file>
 \\
-If no NTP server has been configured, then you will see all zeroes *NOTE* please read the section at the end of this document regarding this statement.
+If no NTP server has been configured, then you will see all zeroes *NOTE* please read the section at the end of this document regarding this statement. (Under the Hood)
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@@ Line 139: / Line 141: @@
    time correct to within 1050 ms
    polling server every 64 s
 </file>
+\\
-==== What did I just change? ====
+\\
+----
+==== Under the Hood ====
+In linux (Centos or Alma) there is a file in /etc called ntp.conf, by default, it will list four NTP public sources:
+(cat or edit /etc/ntp.conf to see this)
+In the ntp.conf you will see the following four lines (as long as it has never been edited)
+<file>
+# Use public servers from the pool.ntp.org project.
+# Please consider joining the pool (http://www.pool.ntp.org/join.html).
+server 0.centos.pool.ntp.org iburst
+server 1.centos.pool.ntp.org iburst
+server 2.centos.pool.ntp.org iburst
+server 3.centos.pool.ntp.org iburst
+</file>
+When you enable NTP from the front panel (virtual or physical) then you will see the IP Addresses that you entered in this file, and there will only be 2 lines of servers. (Because the front panel only allows you to enter two NTP IP addresses).
+<file>
+# Use public servers from the pool.ntp.org project.
+# Please consider joining the pool (http://www.pool.ntp.org/join.html).
+server 162.159.200.123 iburst
+server 51.89.151.183 iburst
+</file>
+\\
+There are two important considerations here:
+\\
+. You cannot enter DNS names for NTP Servers from the front panel (IP Addresses only)
+. The front panel cannot show you the NTP Address if you are using DNS Names.
+\\
+You can edit the /etc/ntp.conf file and enter DNS names for NTP servers, this just will not be reflected in the front panel, and you have to edit /etc/ntp.conf manually.
+\\
+\\
+----
+==== Virtual Front Panel Key Map ====
+\\
+Below is a visualisation of the Front Panel Key Map, this will help you with navigating the virtual front panel.
+\\
+\\
+{{:virtualfrontpanel.png?600|}}