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-rw-r--r--docs/system/ntp.rst33
1 files changed, 27 insertions, 6 deletions
diff --git a/docs/system/ntp.rst b/docs/system/ntp.rst
index 5fd1837f..223447f5 100644
--- a/docs/system/ntp.rst
+++ b/docs/system/ntp.rst
@@ -40,17 +40,38 @@ Configuration
There are 3 default NTP server set. You are able to change them.
- * 0.pool.ntp.org
- * 1.pool.ntp.org
- * 2.pool.ntp.org
+ * ``0.pool.ntp.org``
+ * ``1.pool.ntp.org``
+ * ``2.pool.ntp.org``
+
+.. cfgcmd:: set system ntp server <address> <noselect | pool | preempt | prefer>
+
+ Configure one or more attributes to the given NTP server.
+
+ * ``noselect`` marks the server as unused, except for display purposes. The
+ server is discarded by the selection algorithm.
+
+ * ``pool`` mobilizes persistent client mode association with a number of
+ remote servers.
+
+ * ``preempt`` a preemptable association is expendable.
+
+ * ``prefer`` marks the server as preferred. All other things being equal,
+ this host will be chosen for synchronization among a set of correctly
+ operating hosts.
.. cfgcmd:: set system ntp listen-address <address>
- Setup VyOS as an NTP responder, you must specify the `<address>` and
- optionally the permitted clients. Multiple listen addresses can be
- configured.
+ NTP process will only listen on the specified IP address. You must specify
+ the `<address>` and optionally the permitted clients. Multiple listen
+ addresses can be configured.
.. cfgcmd:: set system ntp allow-clients address <address>
List of networks or client addresses permitted to contact this NTP server.
+
Multiple networks can be configured.
+
+.. cfgcmd:: set system ntp vrf <name>
+
+ Specify name of the :abbr:`VRF (Virtual Routing and Forwarding)` instance.