CompTIA A+ 1102 Remote Access

RDP (Microsoft Remote Desktop Protocol)

- clients for MacOS, Linux, etc.

- remotely connect to a Windows device

Virtual Network Computing (acronym)

VNC

Remote Frame Buffer Protocol (acronym)

RFB

VNC

- uses RFB protocol

- clients for many operating systems

Client-to-Site VPN

- on demand access from a remote device

- software connects to a VPN concentrator

- some software can be configured as always-on

Secure Shell (SSH)

- tcp/22

- encrypted console communication

- supports public/private key pair authentication

- certain accounts, such as root, should be disabled in SSH

- limit access to SSH by IP address

- using a local firewall or a network filter

Remote Monitoring and Management (acronym)

RMM

Managed Service Providers (acronym)

MSP

RMM

- manage a system from a remote location

- often used by MSP's

- RMM access should be limited

- perform ongoing audits

Microsoft Remote Assistance (acronym)

MSRA

MSRA

- provides access to a remote user's desktop

- access on demand

- no firewall configurations or port forwarding required

- replaced with Quick Assist in Windows 10 and Windows 11