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