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Network Security > Well Known Ports and Services > Flashcards

Well Known Ports and Services Flashcards

1
Q

Port 22 TCP/UDP

A

SSH, SCP, SFTP
Secure Shell, Secure Copy, Secure FTP
remote access to shell (think terminal) for boxes and systems.

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2
Q

Port 23 TCP/UDP

A

TELNET

Unencrypted method to remotely access network devices (should not be used {free roots baby})

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3
Q

Port 21

A

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

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4
Q

Port 25 TCP

A

SMTP
Simple Mail Transfer Protocol
is used to transfer email.

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5
Q

Port 53 TCP/UDP

A

DNS

Domain Name Server is used to resolve hostnames and IPs and vice versa.

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6
Q

Port 69 UDP

A

TFTP

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

80 TCP

A

HTTP

Hyper Text Transfer Protocol is used to transmit web page data to clients for unsecured browsing.

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8
Q

Port 88 TCP/UDP

A

Kerberos

Used for network authentication using a system of tickets within a Windows domains.

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9
Q

Port 110 TCP

A

POP3

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

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10
Q

Port 135 TCP/UDP

A

RPC/DCOM-scm
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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11
Q

Port 137-139 TCP/UDP

A

NetBIOS

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

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12
Q

Port 143 TCP

A

IMAP

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

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13
Q

Port 162 TCP/UDP

A

SNMPTRAP

Used to send Trap and Informrequests to the SNMP Manager on a network.

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14
Q

389 TCP/UDP

A

LDAP

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

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15
Q

Port 443 TCP

A

HTTPS

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

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16
Q

Port 445 TCP

A

SMB

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

17
Q

465/587 TCP

A

SMTP with SSL/TLS

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

18
Q

Port 514 UDP

A

Syslog

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

19
Q

Port 663 TCP/UDP

A

LDAP SSL/TLS

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

20
Q

Port 860 TCP

A

iSCUSI

is used for linking data storage facilities over IP

21
Q

Port 989/990 TCP

A

FTPS

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

22
Q

Port 995 TCP

A

POP3 (SSL/TSL)

Post Office Protocol Version 3 used to receive email from a mail server using an SSL/TLS encrypted connection.

23
Q

Port 1433 TCP

A

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

24
Q

Port 1645/1646 UDP

A

RADIUS (alternative)

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

25
Q

Port 1701 UDP

A

L2TP

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

26
Q

Port 1723 TCP/UDP

A

PPTP

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

27
Q

Port 1812/1813 UDP

A

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

28
Q

Port 3225 TCP/UDP

A

FCIP

Fibre channel IP is used to encapsulate fibre channel frames within TCP/IP packets.

29
Q

Port 3389 TCP/UDP

A

RDP

Remote Desktop Protocol is used to remotely view and control other Windows systems via a graphical user interface

30
Q

Port 3868 TCP

A

Diameter

Amore advanced version of AAA protocol that is a replacement for RADIUS

31
Q

Port 6514 TCP

A

Syslog over TLS
It is used to conduct computer logging messaging, especially for routers and firewall logs, over a TLS encrypted connection

Network Security (7 decks)

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