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Security+ Study > Common Ports > Flashcards

Common Ports Flashcards

1
Q

FTP

A

21 - TCP

File Transfer Protocol is used to transfer files from host to host

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2
Q

SSH

A

22 - TCP/UDP

Secure Shell is used to remotely administer network devices and systems.

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3
Q

SCP

A

22 - TCP/UDP

SCP is used for secure copy

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4
Q

SFTP

A

22 - TCP/UDP

SFTP for secure FTP

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5
Q

Telnet

A

23 - TCP/UDP

Unencrypted method to remotely administer network devices (Should not be used)

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6
Q

SMTP

A

25 - TCP

Simple Mail Transfer Protocol is used to send email over the internet

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7
Q

DNS

A

53 - TCP/UDP

Domain Name Service is used to resolve hostnames to IPs and IPs to hostnames

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8
Q

TFTP

A

69 - UDP

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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9
Q

HTTP

A

80 - TCP

Hyper Text Transfer Protocol is used to transmit web page data to a client for unsecured web browsing

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10
Q

Kerberos

A

88 - TCP/UDP

Used for network authentication using a system of tickets within a Windows domain

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11
Q

POP3

A

110 - TCP

Post Office Protocol v3 is used to receive email from a mail server

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12
Q

NNTP

A

119 - TCP

Network News Transfer Protocol is used to transport Usenet articles

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13
Q

RPC/DCOM-scm

A

135 - TCP/UDP
Remote Procedure Call is used to locate DCOM ports to request a service from a program on another computer on the network

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14
Q

NetBIOS

A

137-139 - TCP/UDP

NetBIOS is used to conduct name querying, sending of data, and other functions over a NetBIOS connection

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15
Q

IMAP

A

143 - TCP

Internet Message Access Protocol is used to receive email from a mail server with more features than POP3

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16
Q

SNMP

A

161 - UDP

Simple Network Management Protocol is used to remotely monitor network devices

17
Q

SNMPTRAP

A

162 - TCP/UDP

Used to send Trap and InformRequests to the SNMP Manager on a network

18
Q

LDAP

A

389 - TCP/UDP

Lightweight Directory Access Protocol is used to maintain directories of users and other objects

19
Q

HTTPS

A

443 - TCP

Hyper Text Transfer Protocol Secure is used to transmit web page data to a client over an SSL/TLS encrypted connection

20
Q

SMB

A

445 - TCP

Server Message Block is used to provide shared access to files and other resources on a network

21
Q

SMTP with SSL/TLS

A

465/587 - TCP

Simple Mail Transfer Protocol used to send email over the internet with an SSL and TLS secured connection

22
Q

Syslog

A

514 - UDP

Syslog is used to conduct computer message logging, especially for routers and firewall logs

23
Q

LDAP over SSL/TLS

A

636 - TCP/UDP

LDAP is used to maintain directories of users and other objects over an encrypted SSL/TLS connection

24
Q

iSCSI

A

860 - TCP

iSCSI is used for linking data storage facilities over IP

25
Q

FTPS

A

989/990 - TCP

File Transfer Protocol Secure is used to transfer files from host to host over an encrypted connection

26
Q

IMAP4 with SSL/TLS

A

993 - TCP

Internet Message Access Protocol is used to receive email from a mail server over an SSL/TLS-encrypted connection

27
Q

POP3 (SSL/TLS)

A

995 - TCP

Post Office Protocol v3 is used to receive email from a mail server using an SSL/TLS-encrypted connection

28
Q

Ms-SQL-s

A

1433 - TCP

Microsoft SQL server is used to receive SQL database queries from clients

29
Q

RADIUS (alternative)

A

1645/1646 - UDP

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

30
Q

L2TP

A

1701 - UDP

Layer 2 Tunnel Protocol is used as an underlying VPN protocol but has no inherent security

31
Q

PPTP

A

1723 - TCP/UDP

Point-to-Point Tunneling Protocol is an underlying VPN protocol with built-in security

32
Q

RADIUS

A

1812/1813 - UDP

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

33
Q

FCIP

A

3225 - TCP/UDP

Fibre Channel IP is used to encapsulate Fibre Channel frames within TCP/IP packets

34
Q

iSCSI Target

A

3260 - TCP

iSCSI Target is as the listening port for iSCSI-targeted devices when linking data storage facilities over IP

35
Q

RDP

A

3389 - TCP/UDP

Remote Desktop Protocol is used to remotely view and control other Windows systems via a Graphical User Interface

36
Q

Diameter

A

3868 - TCP

A more advanced AAA protocol that is a replacement for RADIUS

37
Q

Syslog over TLS

A

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

Security+ Study (2 decks)

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