Is port 512 (rexec) dangerous?

Port 512 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 512 be open on my firewall?

No, port 512 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 512 use?

Port 512 (rexec) uses the TCP transport protocol and falls under the Remote Access category.

:512 (TCP)

rexec

Critical Risiko

TCP — Remote Access

Ikhtisar Port

Nomor Port 512

Nama Layanan rexec

Protokol Transport TCP

Kategori Remote Access

Risiko Keamanan Critical

Rentang Port Well-Known (0-1023)

Apa itu Port 512?

Port 512 is assigned to rexec (Remote Process Execution). Transmits credentials in plaintext and has been superseded by SSH. Critical security risk.

TCP Remote Access

Pertimbangan Keamanan

Port 512 (rexec) 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 — 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