Let's Encrypt

How to Setup XTRF with Apache HTTP server as a reverse proxy and SSL from Let's Encrypt

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XTRF is a Polish translation management system available to install as SAAS or on your own server (both Windows and Linux). In today's article, I will keep notes on How to Setup XTRF with Apache HTTP server as a reverse proxy and SSL from Let's Encrypt The company I'm assisting in server works has been using the XTRF translation management system since 2011 (if not earlier). A few years ago I helped to perform a major upgrade (from version 2 to version 8). How To Install XTRF 8 on Ubuntu 18.…


How To HTTPS Secure Drupal 8 Running Nginx with Let's Encrypt on Ubuntu 18.04

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Let's Encrypt have done some very good job, providing SSL certificates that everyone can use absolutely for free. Encrypted HTTPS websites should be default in 2020. I have been implementing HTTPS secure websites for years. Until now I mostly worked with Drupal 7 websites and for securing them I have been using this guide, back from 2016 - Linode: How To Secure Nginx with Let's Encrypt on Ubuntu 12.04 Now, in 2020, working on a new, Drupal 8 powered, website after then initial web development…


Let's Encrypt Fix for "produced an unexpected error: Problem binding to port 443: Could not bind to IPv4 or IPv6.. Skipping."

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The other day I faced this problem - server was not automatically renewing Let's Encrypt certificate:   produced an unexpected error: Problem binding to port 443: Could not bind to IPv4 or IPv6.. Skipping.  It took me some time to debug and find a solution, which is as easy as shutting down nginx server and then renewing lets encrypt (Solution found here: Trying to renew cert on nginx but getting “Problem binding to port 443: Could not bind to IPv4 or IPv6”) sudo /etc/init.d/nginx stop…


How to Renew Let's Encrypt SSL Certificate

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Free SSL certificates from Let's Encrypt certify are issued for a short 3 month term. I first enabled secure HTTPS pages around at start of 2016, and now it's time to renew SSL.  The following tutorial is written for Nginx, but should work for Apache as well (with minor modifications) Stop Nginx​ sudo service nginx stop To trigger the renewal process for all installed domains, run this command: sudo /opt/letsencrypt/letsencrypt-auto renew Start Nginx ​ sudo service nginx start Now,…


Let's Encrypt to fix HTTPS Certificate incompatibility with Windows XP and Google Chrome

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It was about a month ago - when I successfully installed secure https pages for my blog, I opted for using free certificate provided by Let's Encrypt certificate authority. I first heard Let's Encrypt certificate authority from KeyCDN. It was super easy and fast to create SSL certificates for my Linode powered Nginx box. Unfortunately - just a few days later I noticed a deadly screen - Your connection is not private Your connection is not private Google Chrome screen I was using Windows XP…


Linode: How To Secure Nginx with Let's Encrypt on Ubuntu 12.04

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Encrypted HTTPS websites are pretty much a hot topic nowadays. I have seen a lot noncommercial websites and blogs using HTTPS protocol lately.  I believe cheap prices for certificates and possible SEO boost from Google are pushing more and more to add HTTPS. Including me! In fact this article is first since my blog is HTTPS, to celebrate that I decided to write shot tutorial how you too can enable HTTPS on Ubuntu 12.04 running Nginx and optionally running a Drupal site on Linode VPS.…