Is port 20000 (Webmin / DNP3) dangerous?

Port 20000 is classified as high risk. It is a common target for automated scanning and brute-force attacks. Restrict access to trusted IPs if exposure is necessary.

Should port 20000 be open on my firewall?

Port 20000 should only be open with strict firewall rules whitelisting trusted IP addresses. Enable rate limiting and intrusion detection systems.

What transport protocol does port 20000 use?

Port 20000 (Webmin / DNP3) uses the TCP transport protocol and falls under the Remote Access category.

:20000 (TCP)

Webmin / DNP3

High Risiko

TCP — Remote Access

Ikhtisar Port

Nomor Port 20000

Nama Layanan Webmin / DNP3

Protokol Transport TCP

Kategori Remote Access

Risiko Keamanan High

Rentang Port Terdaftar (1024-49151)

Apa itu Port 20000?

Used by Webmin, a web-based Linux/Unix system administration interface. Also assigned to DNP3 (Distributed Network Protocol) used in industrial control and SCADA systems. Both uses carry elevated risk if exposed to the public internet.

TCP Remote Access Umum Digunakan

Pertimbangan Keamanan

Port 20000 (Webmin / DNP3) diklasifikasikan sebagai risiko tinggi. Port ini adalah target umum untuk pemindaian otomatis dan serangan brute-force. Jika harus diekspos, batasi akses ke alamat IP yang diketahui.

Rekomendasi: Gunakan aturan firewall untuk memasukkan IP tepercaya ke whitelist. Aktifkan pembatasan kecepatan dan deteksi intrusi.

Port Terkait — Remote Access

22 SSH 23 Telnet 57 Private Terminal Access 89 SU/MIT Telnet Gateway 95 SUPDUP 107 Remote Telnet 177 XDMCP 219 Uarps

Istilah Terkait

SSL/TLS Certificate DDoS DNS Spoofing Encryption Firewall HTTPS