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Well-Known Ports (Security+ SY0-401)

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johnrunge316's version from 2016-03-14 17:00

Section

Question Answer
File Transfer Protocol (FTP) Control21 (T)
Secure Shell (SSH)22 (T)
Simple Mail Transfer Protocol (SMTP)25 (T)
Domain Name System (DNS)53 (U requests &T for zone transfer)
Hypertext Transfer Protocol (HTTP)80 (T)
Post Office Protocol 3 (POP3)110 (T)
NetBIOS137 - 139 (Session Service) (T&U)
Internet Mail Access Protocol v4 (IMAP4)143 (T&U)
Hypertest Transfer Protocol Secure (HTTPS)443 (T)
File Transfer Protocol (FTP) Data20 (T)
Simple FTP (SFTP)115 (T)
Secure Copy (SCP)22 (T)
Telnet23 (T)
Trivial FTP (TFTP)69 (U)
Terminal Access Controller Access-Control System (TACACS/TACACS+)49 (T)
Kerberos88 (T)
Simple Network Management Protocol (SNMP)161 & 162 (U)
Lightweight Directory Access Protocol (LDAP) un-encrypted389 (T&U)
Internet Key Exchange (IKE) used w/ IPSec500 (U)
Lightweight Directory Access Protocol (LDAP) encrypted636 (T&U)
Network news Transfer Protocol (NNTP)119 (T)
Network Time Protocol (NTP)123 (U)
Layer 2 Tunneling Protocol (L2TP)1701 (U)
Point-to-Point Tunneling Protocol (PPTP)1723 (T&U)
Remote Desktop Protocol3389 (T)
Remote Authentication Dial-in User Service (RADIUS)1812 & 1813 (T&U)
Dynamic Host Configuration Protocol (DHCP)67 & 68 (T&U)
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Question Answer
Authentication header in IPSec51
Microsoft's SQL1433
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Question Answer
FTPS Data989 (T&U)
FTPS Control990 (T&U)
Network News Transfer Protocol over TLS/SSL (NTTPS)563 (T&U)
Telnet over SSL992 (T&U)
IMAPS (over SSL)993 (T)
POP3S (over TLS/SSL)995 (T)
Diameter BaseTCP, SCTP 3868
Session Initiation Protocol (SIP)TCP, UDP 5060
SIPS (over TLS)TCP 5061
Simple Mail Transfer Protocol over TLS/SSL (SMTPS)465 (T)
Syslog/3rd party logging514 UDP
Syslog over TLS6514 TCP
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