7 terms
An IP allowlist is a network security control that permits access to a system only from approved IP addresses or ranges and denies all other sources.
IPsec is a suite of protocols that authenticates and encrypts IP packets at the network layer, widely used for site-to-site and remote-access VPNs.
A network ACL is an ordered list of permit and deny rules that filters packets on an interface or subnet boundary by address, protocol and port.
Network segmentation divides a network into isolated zones with controlled traffic between them, limiting how far an attacker or fault can spread.
RADIUS is a network security protocol that centrally authenticates, authorizes and accounts for users connecting through Wi-Fi, VPN and switch ports.
A VPN is an encrypted tunnel that carries private network traffic across an untrusted network, such as the internet, between authenticated endpoints.
WireGuard is a lean VPN protocol that builds encrypted UDP tunnels between peers identified by public keys, using one fixed set of modern ciphers.