Common Network Ports Flashcards

The port numbers to know for CompTIA A+ and Network+. 28 cards. Tap a card to flip it.

Keys: Space flips, the arrow keys move.

All 28 cards

Port	Protocol
Port 20	FTP data transfer
Port 21	FTP control (commands)
Port 22	SSH (Secure Shell), also used by SFTP and SCP
Port 23	Telnet
Port 25	SMTP (sending email between mail servers)
Port 53	DNS
Ports 67 and 68	DHCP (67 server, 68 client)
Port 69	TFTP
Port 80	HTTP
Port 88	Kerberos
Port 110	POP3
Port 123	NTP (time sync)
Ports 137 to 139	NetBIOS
Port 143	IMAP
Ports 161 and 162	SNMP (162 for traps)
Port 389	LDAP
Port 443	HTTPS
Port 445	SMB (Server Message Block)
Port 514	Syslog
Port 587	SMTP submission (email clients sending mail)
Port 636	LDAPS (LDAP over TLS)
Port 993	IMAPS (IMAP over TLS)
Port 995	POP3S (POP3 over TLS)
Port 1433	Microsoft SQL Server
Port 3306	MySQL
Port 3389	RDP (Remote Desktop Protocol)
Port 5060	SIP (VoIP call setup)
Port 5061	SIP over TLS

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