🎁 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

Reverse Proxy
A server that sits between clients and backend servers, forwarding client requests and returning server responses on their behalf.
MTU (Maximum Transmission Unit)
The maximum size of a data packet that can be transmitted over a network without fragmentation.
HTTP/HTTPS
The protocol used for transferring web pages and data between browsers and servers, with HTTPS adding encryption.
Firewall
A network security system that monitors and controls incoming and outgoing traffic based on predetermined rules.
Multicast
A network communication method that sends data to multiple recipients simultaneously without duplicating packets for each recipient.
SDN (Software-Defined Networking)
An approach that separates the network control plane from the data plane, enabling centralized, programmable network management.
 View All Networking Terms →