Puertos en cPanel/WHM
El Firewall de Linux es un software de código abierto con la que podremos permitir o negar el tráfico de un servicio específico como: Transmisión de datos a través de FTP, correo electrónico POT3, DNS y otros servicios que podríamos ofrecer en nuestro servidor.
La transmisión de datos de estos servicios se realizan a través de protocolos TCP/UDP, por lo que es muy importante la apertura de los puertos necesarios para la trasmisión de datos de un determinado servicio.
El firewall de Linux no representa un sistema de monitorización con la que podremos analizar la trasmisión de paquetes en los puertos y servicios activos, detección o bloqueo de contenido con scripts malintencionado y otras características que ofrecen software de antivirus o firewall de pago.
| Puerto |
Servicio
|
TCP
|
UDP
|
Entrante
|
Saliente
|
host
|
Notas
|
|---|---|---|---|---|---|---|---|
| 1 | CPAN |
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The Show Available Modules option in cPanel's Perl Modules interface (cPanel >> Home >> Software >> Perl Modules) uses this port to improve the speed in which it appears. |
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| 20 | FTP |
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Instead of FTP, we recommend that you use the more-secure SFTP via SSH. |
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| 21 | FTP |
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| 22 | SSH |
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Important: You must open this port before you use WHM's Transfer Tool interface (WHM >> Home >> Transfers >> Transfer Tool). |
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| 25 | SMTP |
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| 26 | SMTP |
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cPanel & WHM only uses this port if you specify it in WHM's Service Manager interface (WHM >> Home >> Service Configuration >> Service Manager). | ||
| 37 | rdate |
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| 43 | whois |
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| 53 | DNS |
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cPanel & WHM uses this port for the following functions:
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| 80 | httpd |
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This port serves the HTTP needs of services on the server. Note: In cPanel & WHM version 76 and later, the cPanel Server Daemon (cpsrvd) listens on this port when you disable the Web Server role. This daemon monitors cPanel & WHM services. Important: We strongly recommend that you encourage your users to use port 443, which uses the more secure SSL/TLS security protocol. For more information, read our More about TLS and SSL documentation. |
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| 110 | POP3 |
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| 113 | ident |
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| 143 | IMAP |
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| 443 | httpd |
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This port serves the HTTPS needs of services on the server. Note:
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| 465 | SMTP, SSL/TLS |
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Warning: As of cPanel & WHM version 68, we only support Transport Layer Security (TLS) protocol version 1.2. |
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| 579 | cPHulk |
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This port should only accept connections on the 127.0.0.x IPv4 address. Your system does not require that this port accept external traffic. | ||||
| 587 | Exim |
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| 783 | SpamAssassin |
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| 873 | rsync |
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| 993 | IMAP SSL |
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| 995 | POP3 SSL |
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| 2703 | Razor |
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Razor is a collaborative spam-tracking database. For more information, visit the Razor website. | |||
| 2077 | WebDAV |
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cPanel's Web Disk interface (cPanel >> Home >> Files >> Web Disk) uses these ports. | ||
| 2078 | WebDAV SSL |
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| 2079 | CalDAV and CardDAV |
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cPanel's Calendars and Contacts interface (cPanel >> Home >> Email >> Calendars and Contacts) uses these ports. | ||
| 2080 | CalDAV and CardDAV (SSL) |
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| 2082 | cPanel |
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Note: To disable logins via this port and only allow SSL logins, set the Choose the closest matched domain for which that the system has a valid certificate when redirecting from non-SSL to SSL URLs. Formerly known as “Always redirect to SSL/TLS” option to On in WHM's Tweak Settings interface (WHM >> Home >> Server Configuration >> Tweak Settings). This will redirect users to secure ports with the /cpanel, /whm, and /webmail aliases. |
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| 2083 | cPanel SSL |
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| 2086 | WHM |
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Note: To disable logins via this port and only allow SSL logins, set the Choose the closest matched domain for which that the system has a valid certificate when redirecting from non-SSL to SSL URLs. Formerly known as “Always redirect to SSL/TLS” option to On in WHM's Tweak Settings interface (WHM >> Home >> Server Configuration >> Tweak Settings). This will redirect users to secure ports with the /cpanel, /whm, and /webmail aliases. |
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| 2087 | WHM SSL |
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| 2089 | cPanel Licensing |
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Warning: You must open this port in order to contact the cPanel license servers. |
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| 2095 | Webmail |
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Note: To disable logins via this port and only allow SSL logins, set the Choose the closest matched domain for which that the system has a valid certificate when redirecting from non-SSL to SSL URLs. Formerly known as “Always redirect to SSL/TLS” option to On in WHM's Tweak Settings interface (WHM >> Home >> Server Configuration >> Tweak Settings). This will redirect users to secure ports with the /cpanel, /whm, and /webmail aliases. |
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| 2096 | Webmail SSL |
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| 2195 | APNs |
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cPanel & WHM only uses this port for the Apple® Push Notification Service (APNs). For more information, read our How to Set Up iOS Push Notifications documentation. | |||
| 3306 | MySQL® |
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MySQL uses this port for remote database connections. | |||
| 6277 | DCC |
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For more information, read Apache's DCC and NetTestFirewallIssues documentation. | |
| 24441 | Pyzor |
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For more information, read Apache's Pyzor and NetTestFirewallIssues documentation. |
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