Ports to remember Flashcards

1
Q

6667

A

IRC Default port

Internet relay chat

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2
Q

21 TCP

A

FTP - File Transfer Protocol is used to transfer files from hosts to host

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3
Q

22 TCP / UDP

A

SSH, SCP, SFTP

Secure Shell is used to remotely administer network devices and systems. SCP is used for secure copy and SFTP for secure FTP.

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4
Q

23 TCP / UDP

A

Telnet - Unencrypted method to remotely administer network devices (should not be used)

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5
Q

25 TCP

A

SMTP - Simple Mail Transfer Protocol is used to send mail over the internet

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6
Q

53 TCP / UDP

A

DNS

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

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7
Q

69 UDP

A

TFTP - Trivial FTP is used as simplified version of FTP to put a file on a remote host or get a file from a remote host
• Not secure but lightweight
• Often used to boot an operating system of a server an into a thin client

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8
Q

80 tcp

A

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

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9
Q

88 TCP UDP

A

Kerberos - Used for Networks authentication using a system of tickers within a windows domain

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10
Q

110 - TCP

A

POP3 - Post office protocol v3 is used to receive email from a mail server

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11
Q

119 TCP

A

NNTP - Network news Transfer Protocol is used to transport Usenet articles

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12
Q

135 TCP / UDP

A

RDP / DCOM-scm - Remote Procedure Call is used to locate DCOM ports to request a service from a program on a computer on the network

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13
Q

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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14
Q

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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15
Q

161 UDP

A

SNMP - Simple Network Management Protocol is used to remotely monitor network devices

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16
Q

162 TCP/UDP

A

SNMPTRAP - Used to send Trap and Inform Requests to the SNMP Manager on a network

17
Q

389 TCP UDP

A

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

18
Q

443 TCP

A

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

19
Q

445 TCP

A

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

20
Q

465 / 587 TCP

A

SMTP with SSL/TLS - Simple mail Transfer Protocol used to send email over the internet with an SSL and TLS secured connection

21
Q

514 UDP

A

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

22
Q

636 TCP/UDP

A

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

23
Q

860 TCP

A

iSCSI -
iSCSI is used for linking data storage facilities over IP

24
Q

989 / 990 TCP

A

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

25
Q

993 TCP

A

IMAP4 with SSL/TLS
Internet Message Access Protocol used to receive email from a mail server over an SSL / TLS encrypted connection

26
Q

995 TCP

A

POP3 (SSL/TLS) Post Office Protocol v3 used to receive email from a mail server using an SSL/TLS encrypted connection

27
Q

1433 TCP

A

MS-SQL-S
Microsoft SQL server is used to receive SQL database queries from clients

28
Q

1645 / 1646 UDP

A

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

29
Q

1701 UDP

A

L2DP
Layer 2 Tunnel Protocol is used as an underlying VPN Protocol but has no inherent security

30
Q

1723 TCP/UDP

A

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

31
Q

1812 / 1813 UDP

A

Radium Remote Authentication Dial-in User Service is used for authentication and authorization (x) and Accounting (x)

32
Q

3225 TCP / UDP

A

FCIP -
Fibre Channel IP is Used to encapsulate Fibre Channel frames within TCP/IP Packers

33
Q

3260 FCP

A

iSCSI Target
iSCSI Target is a listening port for an iSCSI targeted devices when linking data storage facilities over IP

34
Q

3389 TCP UDP

A

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

35
Q

3868 TCP

A

Diameter
A more advanced AAA protocol that is a replacement for RADIUS

36
Q

6514 TCP

A

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