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diff --git a/docs/system/system-dns.rst b/docs/system/system-dns.rst new file mode 100644 index 00000000..59cfdb5d --- /dev/null +++ b/docs/system/system-dns.rst @@ -0,0 +1,69 @@ +.. _system-dns: + +########## +System DNS +########## + + +This section describes configuring DNS on the system, namely: + + * DNS name servers + * Domain search order + + +DNS name servers +================ + +.. cfgcmd:: set system name-server <address> + + Use this command to specify a DNS server for the system to be used + for DNS lookups. More than one DNS server can be added, configuring + one at a time. Both IPv4 and IPv6 addresses are supported. + + + +Example +------- + +In this example, some *OpenNIC* servers are used, two IPv4 addresses +and two IPv6 addresses: + + +.. code-block:: none + + set system name-server 176.9.37.132 + set system name-server 195.10.195.195 + set system name-server 2a01:4f8:161:3441::1 + set system name-server 2a00:f826:8:2::195 + + +Domain search order +=================== + +In order for the system to use and complete unqualified host names, a +list can be defined which will be used for domain searches. + + +.. cfgcmd:: set system domain-search domain <domain> + + Use this command to define domains, one at a time, so that the system + uses them to complete unqualified host names. Maximum: 6 entries. + + +.. note:: Domain names can include letters, numbers, hyphens and periods + with a maximum length of 253 characters. + + +Example +------- + +The system is configured to attempt domain completion in the following +order: vyos.io (first), vyos.net (second) and vyos.network (last): + + +.. code-block:: none + + set system domain-search domain vyos.io + set system domain-search domain vyos.net + set system domain-search domain vyos.network + |