Is port 638 (MCNS-SEC) dangerous?

Port 638 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 638 be open on my firewall?

Port 638 is generally safe to have open. Apply standard security practices: keep software updated and monitor access logs.

What transport protocol does port 638 use?

Port 638 (MCNS-SEC) uses the TCP/UDP transport protocol and falls under the Security & VPN category.

:638 (TCP/UDP)

MCNS-SEC

Low Risiko

TCP/UDP — Security & VPN

Ikhtisar Port

Nomor Port 638

Nama Layanan MCNS-SEC

Protokol Transport TCP/UDP

Kategori Security & VPN

Risiko Keamanan Low

Rentang Port Well-Known (0-1023)

Apa itu Port 638?

MCNS Security. Multimedia Cable Network System security protocol for cable network authentication.

TCP/UDP Security & VPN

Pertimbangan Keamanan

Port 638 (MCNS-SEC) 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 — Security & VPN

31 MSG-AUTH 48 Auditd 49 TACACS 56 XNS-AUTH 62 ACA Services 65 TACACS-DS 88 Kerberos 90 DNSIX Security

Istilah Terkait

SSL/TLS Certificate DDoS DNS Spoofing Encryption Firewall HTTPS