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Security + > 3.1 Secure Protocols > Flashcards

3.1 Secure Protocols Flashcards

1
Q

Well-known ports

A

Ports 0-1023 are considered well known ports

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2
Q

Registered Ports

A

Ports 1024-49,151 are considered registered and are usually assigned to proprietary protocols

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3
Q

Dynamic or private ports

A

Ports 49,152-65,535 can be used by any application

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4
Q

Port 21

A

FTP File transfer protocol is used to transfer files from host to host

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5
Q

Port 22

A

SSH, SCP, SFTP: Secure shell is used to remotely administer network devices and systems. SCP is used for secure cpy and SFTP for secure FTP

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6
Q

Port 23

A

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

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7
Q

Port 25

A

SMTP: Simple mail transfer protocol is used to send email over the internet

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8
Q

Port 53

A

DNS: Domain name service is used to resolve hostnames to IP’s and IP’s to hostnames

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9
Q

Port 69

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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10
Q

Port 80

A

HTTP: Hyper text transfer protocol is used to transmit web page data to a client for unsecured web browsing

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11
Q

Port 88

A

Kerberos: used for network authentication using a system of tickets within a windows domain

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12
Q

Port 110

A

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

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13
Q

Port 119

A

NNTP: network news transfer protocol is used to transport Usenet articles

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14
Q

Port 135

A

RPC/DCOM-scm: 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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15
Q

Port 137-139

A

NetBIOS: used to conduct name querying, sending of dat, and other functions over a NetBIOS connection

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16
Q

Port 143

A

IMAP: Internet message access protocol is used to receive email from a mail server with more features than POP3

17
Q

Port 161

A

SNMP: Simple network management protocol is used to remotely monitor network devices

18
Q

Port 162

A

SNMPTRAP: Used to send trap and informrequests to the SNMP manager on a network

19
Q

Port 389

A

LDAP: Lightweight directory access protocol is used to maintain directories of users and other objects

20
Q

Port 443

A

HTTPS: Hyper text transfer protocol secure is used to transmit web page data to a client over an encrypted SSL connection

21
Q

Port 445

A

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

22
Q

Port 465/587

A

SMTP with SSL/TLS: Simple mail protocol used to send email over the internet with an SSL and TLS secured connection

23
Q

514

A

Syslog: Used to conduct computer message logging, especially for routers and firewall logs

24
Q

636

A

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

25
Q

860

A

iSCSI: used for linking data storage facilities over IP

26
Q

989/990

A

FTPS: File transfer protocol secure is used to transfer files from host to host over an encrypted network

27
Q

993

A

IMAP4 with SSL/TLS: Internet message access protocol is used to receive email from a mail server over an SSL/TLS encrypted connection

28
Q

995

A

POP3 SSL/TLS: Post office protocol version 3 used to receive email from a mail server over SSL/TLS

29
Q

1433

A

Ms-sql-s: Microsoft sql server is used to receive SQL database queries from clients

30
Q

1645/1646

A

RADIUS: remote authentication dial-in user service is used for authentication and authorization (1645) and accounting (1646)

31
Q

1701

A

L2TP: Layer 2 tunnel protocol is used as an underlying VPN protocol but has no security

32
Q

1723

A

PPTP: point to point tunneling protocol underlying VPN protocol with built in security

33
Q

1812/1813

A

RADIUS: remote authentication dial-in user service is used for authentication and authorization (1812) and accounting (1813)

34
Q

3225

A

FCIP: fibre channel IP is used to encapsulate fibre channel frames within TCP/IP packets

35
Q

3260

A

iSCSI target: used for linking data storage facilities over IP

36
Q

3389

A

RDP: Remote desktop protocol is used to remotely view and control other windows systems via a GUI

37
Q

3868

A

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

38
Q

6514

A

Syslog over TLS: It is used to conduct computer message logging, routers and firewall logs, over a TLS encrypted connection

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