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CERT Coordination Center

Cisco ASA

Computer emergency response team

Diameter (protocol)

Digital Signature Algorithm

Distributed Sender Blackhole List

DNS over HTTPS

DNS over TLS

Domain Name System Security Extensions

DNSCrypt

DNS spoofing

Denial-of-service attack

ElGamal signature scheme

Check Point VPN-1

Firewalld

Forward secrecy

HTTP header injection

Interactive Connectivity Establishment

Ipfirewall

IPsec

IP address spoofing

IP address blocking

Linux Unified Key Setup

NAT traversal

NTLM