Is port 753 (Kerberos userreg) dangerous?

Port 753 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 753 be open on my firewall?

Port 753 should only be open with strict firewall rules whitelisting trusted IP addresses. Enable rate limiting and intrusion detection systems.

What transport protocol does port 753 use?

Port 753 (Kerberos userreg) uses the TCP/UDP transport protocol and falls under the Security & VPN category.

:753 (TCP/UDP)

Kerberos userreg

High Risiko

TCP/UDP — Security & VPN

On this page

Ikhtisar Port

Nomor Port 753

Nama Layanan Kerberos userreg

Protokol Transport TCP/UDP

Kategori Security & VPN

Risiko Keamanan High

Rentang Port Well-Known (0-1023)

Apa itu Port 753?

Kerberos v4 user registration service. Deprecated and replaced by kadmin on port 749 in Kerberos v5.

TCP/UDP Security & VPN

Pertimbangan Keamanan

Port 753 (Kerberos userreg) 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.

Kerberos userreg

Ikhtisar Port

Apa itu Port 753?

Pertimbangan Keamanan

Port Terkait — Security & VPN

Istilah Terkait