Is port 513 (rlogin) dangerous?

Port 513 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 513 be open on my firewall?

No, port 513 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 513 use?

Port 513 (rlogin) uses the TCP transport protocol and falls under the Remote Access category.

:513 (TCP)

rlogin

Critical Riesgo

TCP — Remote Access

Resumen del puerto

Número de puerto 513

Nombre del servicio rlogin

Protocolo de transporte TCP

Categoría Remote Access

Riesgo de seguridad Critical

Rango de puertos Conocidos (0-1023)

Qué es el puerto 513?

Port 513 is assigned to rlogin, which relies on a deeply flawed IP-based trust model with no encryption. Critical security vulnerability.

TCP Remote Access

Consideraciones de seguridad

El puerto 513 (rlogin) está clasificado como riesgo crítico. Este puerto no debe exponerse a internet público. El servicio transmite datos sin cifrado, haciéndolo vulnerable a escuchas, robo de credenciales y ataques de intermediario.

Recomendación: Bloquea este puerto en el firewall. Utiliza alternativas cifradas (SSH, SFTP, HTTPS) en su lugar.

Puertos relacionados — Remote Access

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

Términos relacionados

SSL/TLS Certificate DDoS DNS Spoofing Encryption Firewall HTTPS