Port Match

N10-009

Study for CompTIA Network+

Ten-question drills, short study cards and every answer explained, in CertPrep+.

Every Network+ port in the game

The 20 ports in the CompTIA Network+ N10-009 objectives, plus 14 more that come up on the job, with the protocol, TCP or UDP, and what each one is for.

Show the full port list

Core 20 is the list in the CompTIA Network+ N10-009 exam objectives (1.4). Ext. 34 adds 14 more that are worth knowing but not on that list.

Port	Protocol	TCP/UDP
Core 20
20/21	FTPFile transfer (20 data, 21 control)	TCP
22	SSHSecure remote access	TCP
22	SFTPSecure file transfer	TCP
23	TelnetUnencrypted remote access	TCP
25	SMTPSending email	TCP
53	DNSDomain name resolution	TCP/UDP
67/68	DHCPAutomatic IP address assignment	UDP
69	TFTPTrivial file transfer	UDP
80	HTTPUnencrypted web traffic	TCP
123	NTPNetwork time synchronization	UDP
161/162	SNMPNetwork monitoring and alerts	UDP
389	LDAPDirectory services	TCP
443	HTTPSSecure web traffic	TCP/UDP
445	SMBWindows file and printer sharing	TCP
514	SyslogCentralized logging	UDP
587	SMTPSSecure email submission (STARTTLS)	TCP
636	LDAPSSecure directory services	TCP
1433	MS SQL ServerMicrosoft SQL database	TCP
3389	RDPWindows Remote Desktop	TCP/UDP
5060/5061	SIPVoIP signaling (5061 typically TLS)	TCP/UDP
Added in Ext. 34
110	POP3Email retrieval	TCP
143	IMAPEmail retrieval and synchronization	TCP
137-139	NetBIOSLegacy Windows networking	TCP/UDP
465	SMTPSSMTP over implicit TLS	TCP
500	IKEIPsec VPN key exchange	UDP
993	IMAPSSecure IMAP	TCP
995	POP3SSecure POP3	TCP
1701	L2TPVPN tunneling	UDP
1723	PPTPLegacy VPN	TCP
3306	MySQLMySQL database	TCP
4500	IPsec NAT-TVPN through NAT	UDP
5432	PostgreSQLPostgreSQL database	TCP
5900	VNCRemote desktop	TCP
8080	HTTP AlternateWeb applications and proxies	TCP