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# dns

Use the "dns" command to configure or display DNS (Domain Name System) settings.

View settings

The following command displays the current DNS settings:

`msh> dns`

IPv4 DNS server configuration

The following command enables or disables the IPv4 DNS server address:

`msh> dns "ID" server "server address"`

The following command displays a configuration using the IP address 192.168.15.16 on a DNS 1 server:

`msh> dns 1 server 192.168.15.16`

- You can register IPv4 DNS Server address.

- You can select an ID number between 1 and 3. You can select up to three ID numbers.

- You cannot use "255.255.255.255" as the DNS server address.

IPv6 DNS server configuration

The following command enables or disables the IPv4 DNS server address:

`msh> dns "ID" server6 "server address"`

- You can register IPv6 DNS Server address.

- The selectable ID number is between 1 and 3. You can select up to 3 ID.

Dynamic DNS function setting

`msh> dns "interface_name" ddns {on|off}`

- You can set the dynamic DNS function "active" or "inactive".

- {on} means "active" and {off} means "inactive".

- wlan can be specified only when the IEEE 802.11 interface is installed.

Interface name | Interface configured
--- | ---
ether | Ethernet interface
wlan | IEEE 802.11 interface

Specifying the record overlap operation

`msh> dns overlap {update|add}`

- You can specify operations performed when records overlap.

- update: To delete old records and register new records.

- add: To add new records and store the old records.

- When CNAME overlaps, it is always changed, irrespective of the settings.

CNAME registration

`msh> dns cname {on|off}`

- You can specify whether to register CNAME.

- {on} means "active" and {off} means "inactive".

- The CNAME registered is the default name beginning with rnp. CNAME cannot be changed.

A records registration

`msh> dns arecord {dhcp|own}`

- dhcp: You can specify the method of registering an A record when the dynamic DNS function is enabled and DHCP is used.

- own: To register an A record using the printer as the DNS client.

  The DNS server address and the domain name already designated are used for the registration.

Record updating interval settings

`msh> dns interval [1-255]`

- You can specify the interval after which records are updated when using the dynamic DNS function.

- The updating interval is specified hourly. It can be entered between 1 and 255 hours.

- The default is 24 hours.

resolv.conf display

`msh> dns resolv`

Specifying the protocol when asking names during dual stacking

`msh> dns resolv protocol {ipv4|ipv6}`

- Appears during dual stacking only.