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DNS Lookup

With the DNS Lookup you can query DNS servers for various resource records.

Example inputs:

Host Type Description
server-01.borntoberoot.net A To get the IPv4 address of the hostname.
server-01.borntoberoot.net AAAA To get the IPv6 address of the hostname.
server.borntoberoot.net CNAME To get the canonical name of the hostname.
borntoberoot.net MX To get the mail exchange servers for the domain.
borntoberoot.net NS To get the name servers for the domain.
10.0.0.1 PTR To get the hostname associated with the IP address (reverse lookup).
DNS server Description
[Windows DNS] Uses the DNS server configured in Windows.
Cloudflare (profile) Uses Cloudflare's public DNS servers from a predefined profile.
1.1.1.1:53 (input) Uses the custom DNS server 1.1.1.1 on port 53 from the input directly.
ns3.inwx.eu (input) Uses the custom DNS server ns3.inwx.eu from the input directly.

:::note

Multiple inputs (host, DNS server) can be combined with a semicolon (;).

Example: server-01.borntoberoot.net; 10.0.0.1

:::

The dns server can be selected from a list of configured servers or you can enter a custom dns server in the format <hostname>|<ipadress>:<port> (<port> is optional, to use a custom port with IPv6 enclose the address in square brackets: [<ipv6adress>]:53).

DNS Lookup

:::note

Right-click on the result to copy or export the information.

:::

Profile

Inherit host from general

Inherit the host from the general settings.

Type: Boolean

Default: Enabled

:::note

If this option is enabled, the Host is overwritten by the host from the general settings and the Host is disabled.

:::

Host

Hostname or IP address (or any other resource record) to query.

Type: String

Default: Empty

Example:

  • server-01.borntoberoot.net (A record)
  • 1.1.1.1 (PTR record)

Settings

DNS server

List of DNS server profiles. A profile can contain one or more DNS servers with IP address and port.

Type: List<NETworkManager.Models.Network.DNSServerConnectionInfoProfile>

Default:

Name Server 1 Server 2
Cloudflare 1.1.1.1:53 1.0.0.1:53
DNS.Watch 84.200.69.80:53 84.200.70.40:53
Google Public DNS 8.8.8.8:53 8.8.4.4:53
Level3 209.244.0.3:53 209.244.0.4:53
Quad9 9.9.9.9 149.112.112.112
Verisign 64.6.64.6:53 64.6.65.6:53

:::note

Right-click on a selected DNS server to edit or delete it.

You can also use the Hotkeys F2 (edit) or Del (delete) on a selected DNS server.

:::

Add DNS suffix (primary) to hostname

Add the primary DNS suffix to the hostname.

Type: Boolean

Default: Enabled

Use custom DNS suffix

Add a custom DNS suffix to the hostname.

Type: Boolean | String

Default: Disabled | Empty

Example: Enabled | borntoberoot.net

Recursion

Use recursion for the dns query.

Type: Boolean

Default: Enabled

Use cache

Use the cache for the dns query.

Type: Boolean

Default: Disabled

Query class

DNS class to use for the query.

Type: String

Default: IN

Possible values:

  • CS
  • CH
  • HS
  • IN

Show only most common query types

Only show the most common query types (A, AAAA, ANY, CNAME, DNSKEY, MX, NS, PTR, SOA, SRV and TXT) in the dropdown menu in the view. Otherwise all available query types are shown.

Type: Boolean

Default: Enabled

Use only TCP

Only use TCP for the dns query. DNS uses UDP by default.

Type: Boolean

Default: Disabled

Retries

Retries for the dns query after which the query is considered lost.

Type: Integer [Min 1, Max 10]

Default: 3

Timeout (s)

Timeout in seconds for the dns query after which the query is considered lost.

Type: Integer [Min 1, Max 15]

Default: 2