MX-poster

Viser de ansvarlige e-postserverne for et domene og deres prioritet.

Microsoft 365

PowerShell (Windows)

Resolve-DnsName Innebygd

Resolve-DnsName -Name contoso.com -Type MX | Sort-Object Preference | Format-Table Preference, NameExchange

dig Tilleggsverktøy

dig +short MX contoso.com

Unix-skall (bash)

resolvectl Innebygd

resolvectl query --type=MX contoso.com

dig Tilleggsverktøy

dig +short MX contoso.com

Google Workspace

PowerShell (Windows)

Resolve-DnsName Innebygd

Resolve-DnsName -Name google.com -Type MX | Sort-Object Preference | Format-Table Preference, NameExchange

dig Tilleggsverktøy

dig +short MX google.com

Unix-skall (bash)

resolvectl Innebygd

resolvectl query --type=MX google.com

dig Tilleggsverktøy

dig +short MX google.com

A / AAAA

Slår opp et vertsnavn til IPv4- og IPv6-adressene.

Mailserver

PowerShell (Windows)

Resolve-DnsName Innebygd

Resolve-DnsName -Name mail.example.com -Type A
Resolve-DnsName -Name mail.example.com -Type AAAA

dig Tilleggsverktøy

dig +short A mail.example.com
dig +short AAAA mail.example.com

Unix-skall (bash)

resolvectl Innebygd

resolvectl query mail.example.com

dig Tilleggsverktøy

dig +short A mail.example.com
dig +short AAAA mail.example.com

Autodiscover

PowerShell (Windows)

Resolve-DnsName Innebygd

Resolve-DnsName -Name autodiscover.example.com -Type A
Resolve-DnsName -Name autodiscover.example.com -Type AAAA

dig Tilleggsverktøy

dig +short A autodiscover.example.com
dig +short AAAA autodiscover.example.com

Unix-skall (bash)

resolvectl Innebygd

resolvectl query autodiscover.example.com

dig Tilleggsverktøy

dig +short A autodiscover.example.com
dig +short AAAA autodiscover.example.com

TXT-poster (SPF)

Lister alle TXT-poster for et domene, inkludert SPF-posten (v=spf1).

SPF

PowerShell (Windows)

Resolve-DnsName Innebygd

Resolve-DnsName -Name example.com -Type TXT | Select-Object -ExpandProperty Strings

dig Tilleggsverktøy

dig +short TXT example.com

Unix-skall (bash)

resolvectl Innebygd

resolvectl query --type=TXT example.com

dig Tilleggsverktøy

dig +short TXT example.com

DKIM-selektor

Slår opp den offentlige DKIM-nøkkelen til en selektor (<selector>._domainkey.<domain>).

Microsoft 365

PowerShell (Windows)

Resolve-DnsName Innebygd

Resolve-DnsName -Name selector1._domainkey.example.com -Type TXT | Select-Object -ExpandProperty Strings

dig Tilleggsverktøy

dig +short TXT selector1._domainkey.example.com

Unix-skall (bash)

resolvectl Innebygd

resolvectl query --type=TXT selector1._domainkey.example.com

dig Tilleggsverktøy

dig +short TXT selector1._domainkey.example.com

Microsoft 365 (2. Schlüssel)

PowerShell (Windows)

Resolve-DnsName Innebygd

Resolve-DnsName -Name selector2._domainkey.example.com -Type TXT | Select-Object -ExpandProperty Strings

dig Tilleggsverktøy

dig +short TXT selector2._domainkey.example.com

Unix-skall (bash)

resolvectl Innebygd

resolvectl query --type=TXT selector2._domainkey.example.com

dig Tilleggsverktøy

dig +short TXT selector2._domainkey.example.com

Google Workspace

PowerShell (Windows)

Resolve-DnsName Innebygd

Resolve-DnsName -Name google._domainkey.example.com -Type TXT | Select-Object -ExpandProperty Strings

dig Tilleggsverktøy

dig +short TXT google._domainkey.example.com

Unix-skall (bash)

resolvectl Innebygd

resolvectl query --type=TXT google._domainkey.example.com

dig Tilleggsverktøy

dig +short TXT google._domainkey.example.com

DMARC-post

Viser DMARC-policyen under _dmarc.<domain>.

DMARC-Richtlinie

PowerShell (Windows)

Resolve-DnsName Innebygd

Resolve-DnsName -Name _dmarc.example.com -Type TXT | Select-Object -ExpandProperty Strings

dig Tilleggsverktøy

dig +short TXT _dmarc.example.com

Unix-skall (bash)

resolvectl Innebygd

resolvectl query --type=TXT _dmarc.example.com

dig Tilleggsverktøy

dig +short TXT _dmarc.example.com

PTR (omvendt DNS)

Slår opp en IP-adresse til et vertsnavn.

IPv4

PowerShell (Windows)

Resolve-DnsName Innebygd

Resolve-DnsName -Name 192.0.2.25 -Type PTR

dig Tilleggsverktøy

dig +short -x 192.0.2.25

Unix-skall (bash)

resolvectl Innebygd

resolvectl query 192.0.2.25

dig Tilleggsverktøy

dig +short -x 192.0.2.25

IPv6

PowerShell (Windows)

Resolve-DnsName Innebygd

Resolve-DnsName -Name 2001:db8::25 -Type PTR

dig Tilleggsverktøy

dig +short -x 2001:db8::25

Unix-skall (bash)

resolvectl Innebygd

resolvectl query 2001:db8::25

dig Tilleggsverktøy

dig +short -x 2001:db8::25

Navnetjenere / SOA

Viser de ansvarlige navnetjenerne for en sone og SOA-posten.

Zone

PowerShell (Windows)

Resolve-DnsName Innebygd

Resolve-DnsName -Name example.com -Type NS
Resolve-DnsName -Name example.com -Type SOA

dig Tilleggsverktøy

dig +short NS example.com
dig +short SOA example.com

Unix-skall (bash)

resolvectl Innebygd

resolvectl query --type=NS example.com

dig Tilleggsverktøy

dig +short NS example.com
dig +short SOA example.com

Mot en bestemt resolver

Slår opp et domene via en valgfri resolver (standard 1.1.1.1) for å avdekke split DNS sammenlignet med den interne resolveren.

Cloudflare

Resolver (DNS-server)
1.1.1.1 Endre i generatoren →

PowerShell (Windows)

Resolve-DnsName Innebygd

Resolve-DnsName -Name example.com -Type A -Server 1.1.1.1

dig Tilleggsverktøy

dig @1.1.1.1 +short A example.com

Unix-skall (bash)

dig Tilleggsverktøy

dig @1.1.1.1 +short A example.com

nslookup Tilleggsverktøy

nslookup example.com 1.1.1.1

Google

Resolver (DNS-server)
8.8.8.8 Endre i generatoren →

PowerShell (Windows)

Resolve-DnsName Innebygd

Resolve-DnsName -Name example.com -Type A -Server 8.8.8.8

dig Tilleggsverktøy

dig @8.8.8.8 +short A example.com

Unix-skall (bash)

dig Tilleggsverktøy

dig @8.8.8.8 +short A example.com

nslookup Tilleggsverktøy

nslookup example.com 8.8.8.8

Quad9

Resolver (DNS-server)
9.9.9.9 Endre i generatoren →

PowerShell (Windows)

Resolve-DnsName Innebygd

Resolve-DnsName -Name example.com -Type A -Server 9.9.9.9

dig Tilleggsverktøy

dig @9.9.9.9 +short A example.com

Unix-skall (bash)

dig Tilleggsverktøy

dig @9.9.9.9 +short A example.com

nslookup Tilleggsverktøy

nslookup example.com 9.9.9.9

Å spørre en bestemt resolver i Linux krever dig eller nslookup (pakken dnsutils/bind-utils); resolvectl bruker alltid systemets resolver.

Andre områder