Is port 42 (WINS / nameserver) dangerous?

Port 42 is classified as medium risk. It is commonly exposed but consider using encrypted alternatives where available and monitor activity.

Should port 42 be open on my firewall?

Port 42 can be open but should be monitored closely. Keep the service updated and prefer encrypted alternatives where available.

What transport protocol does port 42 use?

Port 42 (WINS / nameserver) uses the TCP/UDP transport protocol and falls under the DNS category.

:42 (TCP/UDP)

WINS / nameserver

Medium Risiko

TCP/UDP — DNS

On this page

Port-Übersicht

Portnummer 42

Dienstname WINS / nameserver

Transportprotokoll TCP/UDP

Kategorie DNS

Sicherheitsrisiko Medium

Portbereich Bekannt (0-1023)

Was ist Port 42?

Originally assigned as the Host Name Server protocol on ARPANET, port 42 was later repurposed by Microsoft for Windows Internet Name Service (WINS), which resolves NetBIOS names to IP addresses. WINS is a legacy name resolution system superseded by DNS and Active Directory. Exposure of WINS on the internet poses reconnaissance and potential exploitation risks.

TCP/UDP DNS

Sicherheitshinweise

Port 42 (WINS / nameserver) ist als mittleres Risiko eingestuft. Obwohl dieser Dienst häufig exponiert wird, sollten Sie verschlüsselte Alternativen in Betracht ziehen, sofern verfügbar.

Empfehlung: Halten Sie den Dienst aktuell. Überwachen Sie die Protokolle auf ungewöhnliche Aktivitäten.

WINS / nameserver

Port-Übersicht

Was ist Port 42?

Sicherheitshinweise

Verwandte Ports — DNS

Verwandte Begriffe