Ports Flashcards

1
Q

FTP

A

TCP; Port 21 (File Transfer Protocol)

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2
Q

SSH, SCP, SFTP

A

TCP/UDP; Port 22 (Secure Shell)

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3
Q

Telnet

A

TCP/UDP; Port 23 (Unencrypted method to remotely administer network devices (should not be used))

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4
Q

SMTP

A

TCP; Port 25 (Simple Mail Transfer Protocol is used to send email over the Internet)

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5
Q

DNS

A

TCP/UDP; Port 53 (Domain Name Service is used to resolve hostnames to IPs and IPs to hostnames)

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6
Q

TFTP

A

UDP; Port 69 (Trivial FTP is used as a simplified version of FTP to put a file on a remote host, or get a file
from a remote host)

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7
Q

HTTP

A

TCP; Port 80 (Hyper Text Transfer Protocol is used to transmit web page data to a client for unsecured web
browsing)

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8
Q

Kerberos

A

UDP/TCP; Port 88 (Used for network authentication using a system of tickets within a Windows domain)

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9
Q

POP3

A

TCP; Port 110(Post Office Protocol v3 is used to receive email from a mail server)

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10
Q

NNTP

A

TCP; Port 119 (Network News Transfer Protocol is used to transport Usenet articles)

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11
Q

RPC/DCOM-scm

A

UDP/TCP; Port 135 (Remote Procedure Call is used to located DCOM ports request a service from a program on another computer on the network)

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12
Q

NetBIOS

A

UDP/TCP; Port 137-139 (NetBIOS is used to conduct name querying, sending of data, and other functions over a
NetBIOS connection)

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13
Q

IMAP

A

TCP; Port 143 (Internet Message Access Protocol is used to receive email from a mail server with more
features than POP3)

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14
Q

SNMP

A

UDP; Port 161 (Simple Network Management Protocol is used to remotely monitor network devices)

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15
Q

SNMPTRAP

A

UDP/TCP; Port 162 (Used to send Trap and Inform Requests to the SNMP Manager on a network)

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16
Q

LDAP

A

UDP/TCP; Port 389 (Lightweight Directory Access Protocol is used to maintain directories of users and other objects)

17
Q

HTTPS

A

TCP; Port 443 (Hyper Text Transfer Protocol Secure is used to transmit web page data to a client over an SSL/TLS-encrypted connection)

18
Q

SMB

A

TCP; Port 445 (Server Message Block is used to provide shared access to files and other resources on a network)

19
Q

SMTP w/ SSL/TLS

A

TCP; Port 465/487 (Simple Mail Transfer Protocol used to send email over the Internet with an SSL and TLS
secured connection)

20
Q

Syslog

A

UDP; Port 514 (Syslog is used to conduct computer message logging, especially for routers and firewall logs)

21
Q

LDAP SSL/TLS

A

UDP/TCP; Port 636 (LDAP is used to maintain directories of users and other objects over an encrypted SSL/TLS
connection)

22
Q

iSCSI

A

TCP; Port 860 (iSCSI is used for linking data storage facilities over IP)

23
Q

FTPS

A

TCP; Port 989-990 (File Transfer Protocol Secure is used to transfer files from host to host over an encrypted connection)

24
Q

IMAP4 w/ SSL/TLS

A

TCP; Port 993 (Internet Message Access Protocol is used to receive email from a mail server over an SSL/TLS encrypted connection)

25
Q

POP3 (SSL/TLS)

A

TCP; Port 995 (Post Office Protocol v3 is used to receive email from a mail server using an SSL/TLS-encrypted connection)

26
Q

Ms-sql-s

A

TCP; Port 1433 (Microsoft SQL server is used to receive SQL database queries from clients)

27
Q

RADIUS (alternative)

A

UDP; Port 1645/1646 (Remote Authentication Dial-In User Service is used for authentication and authorization
(1645) and accounting (1646))

28
Q

FCIP

A

UDP/TCP; Port 3225 (Fibre Channel IP is used to encapsulate Fibre Channel frames within TCP/IP packets)

29
Q

iSCSI Target

A

TCP; Port 3260 (iSCSI Target is as the listening port for iSCSI-targeted devices when linking data storage facilities over IP)

30
Q

RDP

A

UDP/TCP; Port 3389 (Remote Desktop Protocol is used to remotely view and control other Windows systems via a Graphical User Interface)

31
Q

Diameter

A

TCP; Port 3868 (A more advanced AAA protocol that is a replacement for RADIUS)

32
Q

Syslog over TLS

A

TCP; Port 6514 (It is used to conduct computer message logging, especially for routers and firewall logs, over a TLS-encrypted connection)

33
Q

L2TP

A

UDP; Port 1701 (Layer 2 Tunnel Protocol is used as an underlying VPN protocol but has no inherent security)

34
Q

PPTP

A

UDP/TCP; Port 1723 (Point-to-Point Tunneling Protocol is an underlying VPN protocol with built-in security)

35
Q

RADIUS

A

UDP; Port 1812/1813 (Remote Authentication Dial-In User Service is used for authentication and authorization (1812) and accounting (1813))