Lesson 13 Flashcards
What is remote networking
Enabling users at remote locations access to network resources
Users have same access at remote locations as they did at the office
Users can connect to a device for basic service or full-service connections
What are the limitations of remote networking
Bandwidth
Latency
Security
Remote desktop
Mode that enables users to access any network node from their workstation and perform tasks on the remote device
Remote Desktop control
Special software package that enables a remote client to control a host on the network or run an application from a server
Remote desktop assistance
Remote user and local user share access to resources
Both users have control of the device
Both users can see the same display
Benefits of remote desktop connectivity
Centralized application deployment and access
Multiple device support
Server Admin and maintenance
Enhanced Security
RAS Servers
Remote Access Services Server
Allows users to dial in to or use a VPN to connect to the network
Remote Access
A feature that allows a remote user to dial in or use a VPN to connect to the network
A RAS Server is a combination of what types of servers
dial up and VPN
What is Micrsoft version of RAS
RRAS – Routing and Remote Access Services
What is Radius
Remote Authentication Dial In User Service
It enables a server to provide standardized centralized authentication for remote users
When and why would you use RADIUS
when you have more than one RAS server, you can confgiure one of them to act as a RADIUS server and the others as RADIUS clients.
RADIUS Clients
Send authentication requests to the RADIUS server for verification
Who uses RADIUS
VPN servers
Ethernet switches requiring authentication
Wireless Access Points
Other devices
RADIUS role is
Authentication and Authorization
RADIUS uses
1812 and 1813 UDP
RADIUS implementations use ports
1645 and 1646
AAA
Authentication, Authorization and Auditing
How can you get RADIUS
Win Server 2012 R2 NPS server
FreeRADIUS
What is Diameter
Authentication protocol that is an updated version of RADIUS
Updated version of RADIUS is called
Diameter
Is Diameter backward compatible with RADIUS
No
What is a good base protocol for AAA for mobile IP apps, remote access and VoIP
Diameter
IP Multimedia Subsystem telecommunication providers use what to exchange AAA information
Diameter, RADIUS and TACACS/TACACS+
How do remote access systems permit, control and audit remote client connections
AAA
Which protocols have their own implementation of AAA
RADIUS
TACACS
TACAS+
Diameter
Name the remoter control protocols
RDP
VNC
IAC
X Window system
RDP
Remote Desktop Protocol
Microsoft
VNC
Virtual Network Computing
ICA
Independent Computuing Architecture
X Window system
Client server relationssip to provide aGUI and input device management functionality to applications
Nested remote connections
When a user connects remotely to a device and then from that remote device they establish a remote connection to another device
Support for nesting only extends to how many levels of nesting
On
Nesting remote connections can produce latency
True
What is a remote protocol
Enables users to access a remote access server and transfer data
Name some remote access protocols
PPP
PPPoE
EAP
PPP
Pt to Pt protocol
Works at the data link layer
Send IP datagrams over a serial pt to pt link
Can be used in synchronous or asynchronous connections
Provides encryption for passwords paving the way for authrentication of remote users
What must you do to log on to remote session via PPP
Enable remote authentication protocol
What are the four PPP variants
PPPoE
EAP
PEAP
Multilink PPP
PPPoE
Provides PPP features and functionaluity to DSL connections that use Ethernet
Discovers MAC address before establishing a connection
Which PPP variant is used with ATM
PPPoA
EAP
Extensible authentication protocol
Uses tokens, smart cards, and certificates
Which variant of PPP can be used with tokens, smart cards and certificates
EAP
PEAP
Secures EAP by creating an encryoted channel between a remote client and server
Which PPP protocol variant is used MS-CHAP v2
PEAP
To strengthen the protocol password authentication
SLIP
Serial LIne Internet protocol is a legacy prptotocol used for sending data streams over serial lines such as modems or phone connections
SLIP is automatically upgraded to PPP in WIndows sytems
Which device authenticates and provides security for remote clients
Server
All traffic to and from a the remote node passes through
The server
