Setting the DNS server

This recipe explains the procedure for enabling the DNS server and using it.

*With the factory settings, the DNS server is disabled.

Target devices

• AG10/20
• AR10/20
• AC10 (As of 2022/7/4 only for the CLI)

Table of contents

• Setting with the GUI
• Setting with the CLI

Setting with the GUI

1. Access the GUI with a Web browser.
   e.g.) http://192.168.1.197
2. Click [ Advanced setting/control ] - [ DNS settings ] on the side menu.
3. Turn on the toggle for enabling, and enter the port number. (In this procedure, use Port 53.)
   Next, select the [ Server address ] tab, and click [ Add new ].
   
4. Specify the IP address for the upstream DNS server of the contact destination and specify the priority. (0-99, 0 being the highest priority)
   
   *As the items that can be set with the GUI are limited, configure more detailed settings from the CLI.

Setting with the CLI

1. With amsh, transit to configuration mode.

   admin@amnimo:~$ amsh
   amnimo$ enable
   password:
   amnimo#
   amnimo# configure

2. Transit to configuration mode of DNS, and configure the DNS settings.

   amnimo(cfg)# dns
   amnimo(cfg-ssh)# enable ← Enable the DNS server.
   amnimo(cfg-ssh)# port 53 ← Set the port number.
   amnimo(cfg-ssh)# query-port-range min 1024 max 65535 ← Specify the range of ports to issue queries.
   amnimo(cfg-dns)# cache-ttl min 900 max 3600 ← Set the cache retention period.
   amnimo(cfg-dns)# cache-ttl negative-max 900 ← Set the maximum retention period for negative caches.
   amnimo(cfg-dns)# server-address 8.8.8.8 priority 10 ← Specify the IP address and priority (10) of the upstream DNS server of the contact destination.
   amnimo(cfg-ssh)# exit
   amnimo(cfg)# 

3. Save the configuration file.

   amnimo(cfg)# config file save

For detailed information on the commands and other optional settings, refer to the following manuals.

• CLI User's Manual
• GUI User's Manual