Is port 464 (Kerberos Change Password) dangerous?

Port 464 is classified as critical risk and should not be exposed to the public internet. It transmits data without encryption, making it vulnerable to eavesdropping and credential theft.

Should port 464 be open on my firewall?

No, port 464 should not be open to the public internet. Block it at the firewall and use encrypted alternatives such as SSH, SFTP, or HTTPS instead.

What transport protocol does port 464 use?

Port 464 (Kerberos Change Password) uses the TCP/UDP transport protocol and falls under the Security & VPN category.

:464 (TCP/UDP)

Kerberos Change Password

Critical Risiko

TCP/UDP — Security & VPN

Ikhtisar Port

Nomor Port 464

Nama Layanan Kerberos Change Password

Protokol Transport TCP/UDP

Kategori Security & VPN

Risiko Keamanan Critical

Rentang Port Well-Known (0-1023)

Apa itu Port 464?

Port 464 is assigned to kpasswd, used for changing Kerberos passwords in Active Directory and MIT Kerberos environments. Critical for enterprise auth.

TCP/UDP Security & VPN Umum Digunakan

Pertimbangan Keamanan

Port 464 (Kerberos Change Password) diklasifikasikan sebagai risiko kritis. Port ini tidak boleh diekspos ke internet publik. Layanan ini mentransmisikan data tanpa enkripsi, sehingga rentan terhadap penyadapan, pencurian kredensial, dan serangan man-in-the-middle.

Rekomendasi: Blokir port ini di firewall. Gunakan alternatif terenkripsi (SSH, SFTP, HTTPS) sebagai gantinya.

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