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AIMD Security > Network Protocols > Flashcards

Network Protocols Flashcards

1
Q

FTP

A

Port 21, TCP

used to transfer files from host to host. Not secure. See also TFTP and SFTP

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2
Q

SSH

A

Port 22, TCP/UDP
Secure Shell
used to remotely administer network devices and systems. See also SCP (secure copy) and SFTP (secure FTP)

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3
Q

SCP

A

Port 22, TCP/UDP
Secure Copy
See also SSH and SFTP

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4
Q

SFTP

A

Port 22, TCP/UDP
Secure File Transfer Protocol
See also SSH, SCP, and FTP

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5
Q

Telnet

A

Port 23, TCP/UDP

Telnet is unencrypted. Used to be used for remote administration. Should be DISABLED EVERYWHERE as it is not secure.

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6
Q

SMTP

A

Port 25 TCP
Simple Mail Transfer Protocol
common email service. See also IMAP and POP3

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7
Q

DNS

A

Port 53, TCP/UDP
Domain Name Service
used to resolve hostnames to IPs, IPs to hostnames

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8
Q

TFTP

A

Port 69, UDP
Trivial FTP.
Simplified FTP. Not secure.

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9
Q

HTTP

A

Port 80, TCP
Hyper Text Transfer Protocol
web browser, not secure

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10
Q

Kerberos

A

Port 88, TCP/UDP
Kerberos
Used for network authentication using a system of tickets within a Windows domain

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11
Q

POP3

A

Port 110, TCP
Post Office Protocol v3
common email. Not secure on port 110. Port 995 has secure POP3 using SSL/TLS encrypted connection

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12
Q

NNTP

A

Port 119, TCP
Network News Transfer Protocol
used for Usenet articles

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13
Q

RPC

A

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

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14
Q

NetBIOS

A

Ports 137-139, TCP/UDP

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

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15
Q

IMAP

A

Port 143, TCP
Internet Message Access Protocol
common email client with more features than POP3

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16
Q

SNMP

A

Port 161, UDP
Simple Network Management Protocol
remotely admin network devices

First version to support encryption is SNMPv3

17
Q

SNMPTRAP

A

Port 162, TCP/UDP

Used to send Trap and InformRequests to the SNMP manager on a network. SNMP part is Simple Network Management Protocol

18
Q

LDAP

A

Port 389 TCP/UDP
Lightweight Directory Access Protocol
used to maintain directories of users and others. Often connected to a RADIUS. MS Active Directory is a type of LDAP

19
Q

HTTPS

A

Port 443 TCP
Hyper Text Transfer Protocol Secure
for secure web browsing. Uses SSL/TLS encrypted connection

20
Q

SMB

A

Port 445 TCP
Server Message Block
provides shared access to files and other resources on a network

21
Q

SMTP with SSL/TLS

A

Ports 465, 587 TCP
Simple Mail Transfer Protcol (secure)
email. Uses SSL or TLS secured connection

22
Q

Syslog

A

Port 514 UDP
Syslog
used for system logging, particular routers and firewalls
This is the plaintext version. The encrypted version is on port 6514 using TCP, and is called syslog-ng or rsyslog or syslog TLS.

23
Q

LDAP SSL/TLS

A

Port 636 TCP/UDP
Lightweight Directory Access Protocol
used to maintain directories of users and other objects, over encrypted SSL/TLS connection

24
Q

iSCSI

A

Port 860 TCP
Internet Small Computer Systems Interface
used for linking data storage facilities over IP

25
Q

FTPS

A

Port 989, 990
File Transfer Protocol Secure
transfers files from host to host over encrypted connection. See also FTP, SCP.

26
Q

IMAP4

A

Port 993 TCP
Internet Message Access Protocol
used to receive email over an SSL/TLS encrypted connection

27
Q

POP3 (SSL/TLS)

A

Port 995
Post Office Protocol v3
used to receive email over an SSL/TLS-encrypted connection

28
Q

MSSQLS

A

Port 1433 TCP
Ms-sql-s, Microsoft SQL Server
database engine

29
Q

RADIUS

A

Port 1645, 1646, 1812, 1813 UDP
Remote Authentication Dial-In Service
used for authentication and authorization on port 1812 or 1645 and accounting on port 1813 or 1646

Note that it uses UDP, not TCP

30
Q

L2TP

A

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

31
Q

PPTP

A

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

32
Q

FCIP

A

Port 3225 TCP/UDP
Fibre Channel IP
used to encapsulate Fibre Channel frames within TCP/IP packets

33
Q

iSCSI Target

A

Port 3260 TCP
Internet Small Computer Systems Interface Target
listening port for iSCSI- targeted devices when linking data storage facilities over IP

34
Q

RDP

A

Port 3389 TCP/UDP
Remote Desktop Protocol
what we use to get to our dev VMs ;)

35
Q

Diameter

A

Port 3868 TCP

Diameter is a more advanced version of RADIUS, for authentication (AAA protocol)

36
Q

Syslog over TLS

A

Port 6514 TCP

Secure system logging. Uses TLS encrypted connection. Also called syslog-ng or rsyslog. See Syslog

AIMD Security (7 decks)

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