CompTia A+ Port Numbers
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CompTia A+ Port Numbers - Marcador
CompTia A+ Port Numbers - Detalles
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| 🇬🇧 | 🇬🇧 |
| Hypertext Transfer Protocol HTTP 80 | Used to retrieve data from web servers. |
| Used for secure web pages and sites. Includes encryption services. | HTTP over TLS/SSL HTTPS 443 |
| Used for transferring files between hosts. Contains basic authentication features. | File Transfer Protocol FTP 20 (data) 21 (control) |
| Encrypted replacement for Telnet and FTP. Includes Secure Copy Protocol (SCP) and Secure Shell FTP (SFTP) | SECURE SHELL 22 |
| Sends email to and between mail servers. | SMTP 25 Simple Mail Transfer Protocol |
| Retrieves email from mail servers. | POP3 Post Office Protocol version 3 PORT 110 |
| Retrieves email from mail servers. | IMAP Internet Message Access Protocol PORT 143 |
| Used to share files and resources like printers. | SMB Server Message Block PORT 445 |
| Used to share files on OSX and MacOS networks. | AFP Apple Filing Protocol PORT 548 or 427 |
| Allows computers to find network services without prior configuration. Most commonly used for network printers. | SLP Service Location Protocol PORT 427 |
| Used for network directory services that centrally manage user accounts and network services. | LDAP Lightweight Directory Access Protocol PORT 389, 636 (secure) |
| Used for remote logins to Windows systems. | RDP Remote Desktop Protocol PORT 3389 |
| Provides name, datagram, and session services for networks using the NetBIOS API. NetBIOS used on TCP/IP networks is sometimes called NetBT. SMB often uses NetBIOS functions as well. | NetBIOS Network Basic Input/Output System PORT 137 - 139 |
| Used to remotely manage and monitor network devices. | SNMP Simple Network Management Protocol PORT 161 - 162 |
| Resolves domain names into IP addresses. | DNS Domain Name System PORT 53 |
| Dynamically assigns IP addresses and other network configuration on joining a network. | DHCP Dynamic Host Configuration Protocol PORT 67 - 68 |
| File Transfer Protocol FTP | TCP 20 / 21 |