20/21 - FTP (File Transfer Protocol), 22 - SSH (Secure Shell), 23 - Telnet, 25 - SMTP (Simple Mail Transfer Protocol), 53 - DNS (Domain Name System), 67/68 - DHCP (Dynamic Host Configuration Protocol) , 69 - TFTP (Trivial File Transfer Protocol) , 80 - HTTP (Hypertext Transfer Protocol), 110 - POP3 (Post Office Protocol v3), 123 - NTP (Network Time Protocol), 143 - IMAP (Internet Message Access Protocol) , 161/162 - SNMP (Simple Network Management Protocol), 389 - LDAP (Lightweight Directory Access Protocol) , 443 - HTTPS , 445 - SMB (Server Message Block), 514 - Syslog, 587 - SMTP TLS, 636 - LDAPS, 993 - IMAP/SSL, 995 - POP3/SSL , 1433 - Structured Query Language (SQL) Server, 1521 - SQLnet, 3306 - MySQL, 3389 - RDP (Remote Desktop Protocol), 5060/5061 - SIP (Session Initiation Protocol),

COMPTIA Network+ Objective Ports

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