Is port 101 (NIC Host Name) dangerous?

Port 101 is classified as low risk. This service uses encryption or has a minimal attack surface, making it relatively safe to expose with standard security practices.

Should port 101 be open on my firewall?

Port 101 is generally safe to have open. Apply standard security practices: keep software updated and monitor access logs.

What transport protocol does port 101 use?

Port 101 (NIC Host Name) uses the TCP transport protocol and falls under the DNS category.

:101 (TCP)

NIC Host Name

Low Risiko

TCP — DNS

Ikhtisar Port

Nomor Port 101

Nama Layanan NIC Host Name

Protokol Transport TCP

Kategori DNS

Risiko Keamanan Low

Rentang Port Well-Known (0-1023)

Apa itu Port 101?

Port 101 was the original ARPANET host name server, providing hostname-to-address lookups via the Network Information Center (NIC) before DNS was invented.

TCP DNS

Pertimbangan Keamanan

Port 101 (NIC Host Name) diklasifikasikan sebagai risiko rendah. Layanan ini menggunakan enkripsi atau memiliki permukaan serangan yang minimal, sehingga relatif aman untuk diekspos.

Rekomendasi: Terapkan praktik keamanan standar. Jaga perangkat lunak tetap diperbarui dan pantau akses.

Port Terkait — DNS

42 WINS / nameserver 53 DNS 202 AT-NBP 206 AT-ZIS 558 SDNSKMP 634 GINAD 853 DNS over TLS 953 RNDC

Istilah Terkait

A Record AAAA Record Authoritative DNS Server CNAME Record DNS DNS Resolver