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Island Router CLI Reference Guide 2.3.2
Island Router CLI Reference Guide 2.3.2
  • Overview
  • Context Sensitive Help
  • URL Format
  • Password Encryption and Public Key Authentication
  • Command Scheduler
  • Commands
    • auto-update
      • auto-update days
      • auto-update time
    • backup
      • backup interval
      • backup url
    • clear connections
    • clear dhcp-client
    • clear dump
    • clear everything
    • clear log
    • clear network
    • clear package
    • clear pin
    • clear ssh client-keys
    • clear ssh host-keys
    • clear ssh known-hosts
    • clear syslog
    • clear update
    • clear vpn-keys
    • compact
    • configure authorized-keys
    • configure known-hosts
    • configure network
    • configure terminal
    • description
    • duplex
    • end
    • ethernet polling
    • exit
    • help
    • history
      • history empty
      • history filter
      • history interval
      • history output-format
      • history rename
      • history url
      • history utc
    • hostname
    • interface
    • ip (interface context)
      • ip address
      • ip autoconfig
      • ip autovlan
      • ip arp-scan
      • ip arp-spoof
      • ip priority
      • ip dhcp6-client
      • ip dhcp6-server
      • ip dhcp-client
      • ip dhcp-lease
      • ip dhcp-monitor
      • ip dhcp-scope
      • ip dhcp-server
      • ip ident4
      • ip ident6
      • ip mtu
      • ip nat4
      • ip nat6
      • ip router-advertise
      • ip router-solicit
    • ip (global context)
      • ip ddns name
      • ip ddns ipv6
      • ip dhcp-reserve
      • ip dns local-only
      • ip dns mode
      • ip firewall
      • ip ipv6
      • ip load-sharing
      • ip max-clients
      • ip port-forward
      • ip route
    • led level
    • login confirm
    • login console
    • login remote
    • login support
    • mac output-format
    • ntp
    • package
    • packet level
    • parent
    • password
    • ping
    • reload
    • rollback
    • show clock
    • show config authorized-keys
    • show config known-hosts
    • show dumps
    • show free-space
    • show hardware
    • show history
    • show interface
    • show interface summary
    • show interface transceivers
    • show ip dhcp-reservations
    • show ip interface
    • show ip neighbors
    • show ip recommendations
    • show ip routes
    • show ip sockets
    • show log
    • show ntp
    • show packages
    • show public-key
    • show running-config
    • show ssh-client-keys
    • show startup-config
    • show stats
    • show syslog
    • show users
    • show vpns
    • show version
    • speed
    • ssh
    • stats
    • syslog
      • syslog level
      • syslog protocol
      • syslog server
    • telnet
    • terminal
      • terminal length
      • terminal terminal-type
      • terminal width
    • timezone
    • update
    • vpn key-exchange
    • vpn peer
      • vpn peer generate client
      • vpn peer host
      • vpn peer local-ip
      • vpn peer mac
      • vpn peer name
      • vpn peer public-key
      • vpn peer remote-ip
      • vpn peer route
      • vpn peer shutdown
      • vpn peer unapproved
      • vpn peer visible
    • vpn port
    • vpn renumber
    • vpn route
    • vpn server
      • vpn server auto-trust
      • vpn server auto-visible
      • vpn server no-local
      • vpn server pool
      • vpn server secret
    • vpn sort
    • write
      • write dump
      • write memory
      • write network
      • write syslog
      • write terminal
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  • Syntax
  • Syntax Description
  • Defaults
  • Usage Guidelines
  • Examples
  • Related Commands
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  1. Commands
  2. ip (global context)

ip dns local-only

Determines whether the DNS server intercepts all recursive DNS requests or only those directed at the Island.

Syntax

[no] ip dns local-only off|on

Syntax Description

Keyword
Description

no

(Optional) Reset the command to its default value.

off

Intercept all recursive DNS requests passing through the Island.

on

Respond only to DNS requests addressed to the Island.

Defaults

All recursive DNS requests passing through the Island are intercepted by default.

Usage Guidelines

By default, Island intercepts all recursive DNS requests it sees and resolves them locally, even if the request was sent to a different DNS server. This improves DNS lookup speed and allows Island to perform filtering at the DNS level.

In some circumstances, it may not be desirable to intercept DNS requests directed at another DNS server. Enabling the local-only option causes Island to pass these requests on to the targeted server.

Note that Island will never intercept and respond to DNS over HTTPS (DoH) requests targeted to another server. Users wishing to force all DNS reqeusts to be handled by Island may wish to block access to external DoH servers using Island's filtering capabilities. Refer to the Island Router app documentation for more information.

Examples

ip dns local-only off

Related Commands

Previousip dhcp-reserveNextip dns mode

Last updated 11 months ago