Let’s Encrypt will shorten default TLS/SSL certificate lifetimes from 90 to 45 days and reduce domain‑validation reuse windows to seven hours, rolling out a trial in May 2026, a default change in July 2027, and full enforcement in August 2028, while also introducing a persistent DNS‑TXT validation method.
This guide explains how to use the Acme-Companion container alongside nginx‑proxy to automatically obtain, renew, and apply free Let’s Encrypt certificates for Dockerized web services, covering core concepts, benefits, feature highlights, and a detailed installation workflow.
This guide walks you through installing Certbot, obtaining a free DV SSL certificate from Let’s Encrypt, configuring Nginx for HTTPS, and setting up automatic renewal so your website stays securely encrypted without the hassle of paid certificates.
This guide explains why HTTPS is essential, introduces Let’s Encrypt’s free certificates and the Certbot client, and provides step‑by‑step commands to install, configure, and automatically renew SSL/TLS on Ubuntu with NGINX, plus best‑practice tips.
This guide walks you through installing Nginx Proxy Manager via Docker, configuring its web UI, setting up a reverse proxy for the admin panel, and securing it with a Let's Encrypt SSL certificate, all without needing deep Nginx knowledge.
This guide explains why and how to upgrade an HTTP website to HTTPS using free Let’s Encrypt certificates and the acme.sh script, covering installation, certificate generation via HTTP or DNS validation, deployment to Apache/Nginx, and automated renewal.
This guide explains why and how to migrate a website from HTTP to HTTPS by obtaining free Let’s Encrypt certificates, installing the acme.sh script, using HTTP or DNS validation, copying the certificates to the web server, and automating renewal and updates.
This guide explains why and how to migrate an HTTP website to HTTPS by adding an SSL/TLS certificate, covering the differences between HTTP and HTTPS, options for obtaining free or paid CA certificates, installing the acme.sh script, generating and installing certificates, and handling updates and troubleshooting.
Understanding SSL certificates, their role in securing web traffic, why trusted CAs are essential, the cost factors, free options like Let’s Encrypt, and the various validation types helps developers select the appropriate certificate and configure it properly, typically via Nginx, for robust HTTPS protection.
This guide explains how to obtain a free wildcard HTTPS certificate from Let's Encrypt using the acme.sh tool in DNS manual mode, covering installation, issuing with DNS TXT records, renewal, and configuring the resulting fullchain and key files for web servers.
This guide walks you through three practical ways—using SSL For Free, the acme.sh script, and a Docker container—to obtain free 90‑day Let’s Encrypt certificates, configure DNS verification on Alibaba Cloud, automate renewal, and integrate the certificates into Nginx for secure HTTPS access.
This guide walks you through installing Anaconda, launching Jupyter Notebook locally, configuring its settings, setting up Nginx reverse proxy with WebSocket support, and securing the server with Let’s Encrypt HTTPS without needing port 80.
This article explains why HTTPS is essential, compares third‑party and self‑managed TLS options, and provides a complete Go implementation using Let’s Encrypt’s autocert library, including code for certificate handling, HTTP‑to‑HTTPS redirection, DNS requirements, and caching strategies.
This guide walks you through obtaining a free Let’s Encrypt certificate, installing it on typical hosting platforms, fixing common private‑key issues, verifying the setup, and enforcing HTTPS for all requests, all in under half an hour.
This guide explains how Let’s Encrypt provides free SSL certificates, outlines its key features, shows step‑by‑step installation on CentOS (including Docker usage), demonstrates domain validation, certificate issuance, renewal and revocation, and details configuration files and supported plugins.
