🎁 New User? Get 20% off your first purchase with code NEWUSER20 · ⚡ Instant download · 🔒 Secure checkout Register Now →
Menu

Categories

Networking Intermediate

What is SSL/TLS Certificate?

A digital certificate that authenticates a website identity and enables encrypted HTTPS connections.

SSL/TLS certificates establish trust between browsers and servers. They contain the domain name, issuing Certificate Authority (CA), public key, and validity dates. When a browser connects to an HTTPS site, it verifies the certificate chain.

Types include Domain Validation (DV), Organization Validation (OV), and Extended Validation (EV). Let's Encrypt provides free DV certificates. Certificates must be renewed before expiration.

Related Terms

SDN (Software-Defined Networking)
An approach that separates the network control plane from the data plane, enabling centralized, programmable network management.
DNS Record Types
Different types of DNS entries that map domain names to various information like IP addresses, mail servers, and verification strings.
MTU (Maximum Transmission Unit)
The maximum size of a data packet that can be transmitted over a network without fragmentation.
DNS over HTTPS (DoH)
A protocol that encrypts DNS queries by sending them over HTTPS, preventing eavesdropping and manipulation of DNS traffic.
OSI Model
The seven-layer Open Systems Interconnection model that standardizes network communication functions from physical transmission to application protocols.
Network Bridge
A device or software that connects two or more network segments at the data link layer, forwarding traffic based on MAC addresses.
 View All Networking Terms →