Is port 204 (AT-Echo) dangerous?

Port 204 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 204 be open on my firewall?

Port 204 is generally safe to have open. Apply standard security practices: keep software updated and monitor access logs.

What transport protocol does port 204 use?

Port 204 (AT-Echo) uses the TCP/UDP transport protocol and falls under the System & Infrastructure category.

:204 (TCP/UDP)

AT-Echo

Low Risiko

TCP/UDP — System & Infrastructure

Ikhtisar Port

Nomor Port 204

Nama Layanan AT-Echo

Protokol Transport TCP/UDP

Kategori System & Infrastructure

Risiko Keamanan Low

Rentang Port Well-Known (0-1023)

Apa itu Port 204?

AppleTalk Echo Protocol. Provides echo functionality for AppleTalk networks, similar to ICMP echo for testing connectivity.

TCP/UDP System & Infrastructure

Pertimbangan Keamanan

Port 204 (AT-Echo) 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 — System & Infrastructure

0 Reserved 1 TCPMUX 2 Management Utility 3 CompressNET 4 Unassigned 5 RJE 6 Unassigned 7 Echo

Istilah Terkait

Bandwidth Latency Packet Loss Ping Throughput ASN