This section covers crucial network services everyone uses in today’s networks, such as DHCP, DNS & NAT.
Category Archives: Network+
Certs 1.2 – Network Services & Applications (Network+)
VPN – Site to Site / Host to Site / Host to Host
Protocols
- IPSec – Provides authentication & data encryption – Operates at the network layer
- GRE – Generic Routing Encapsulation, encapsulates the data, operates at network layer & is a CISCO technology.
- SSL VPN – Main use is eCommerce, uses cryptography (secure authentication & communications)
- PTP / PPTP – Port 1723 UDP, Point to Point, layer 2, PPTP has been largely replaced by L2TP with IPSec.
Certs: 1.1 Network Devices (Network+)
Explain the function of the following network devices