SSL

Solution to random Let's Encrypt Certbot Connection refused / Invalid response Authorization Errors

Since I upgraded my Certbot from version 1.7.0 to 1.11.0, I was getting different errors with different domain names when executing certbot renew command.

When renewing webfoobar.com:

  
certbot renew --cert-name webfoobar.com --dry-run

I get Invalid response AuthorizationError:

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Update of using Let's Encrypt free SSL/TLS certificates with Nginx, renewing it with ACMEv2 client and achieve A+ rating in Qualys SSL Labs

This is an update of this article. I have received the follwing email from Let's Encrypt:

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Using Let's Encrypt free SSL/TLS certificates with Nginx and achieve A+ rating in Qualys SSL Labs

The Let's Encrypt is a certificate authority that offers free and automated SSL/TLS certificates for your website(s). It issues certificates trusted by most browsers. In this article will show how to setup and automate the renewal of Let's Encrypt SSL/TLS certificates with Nginx.

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Step by step guide to setup Apache Solr 5.x in CentOS 7 for Drupal 7 Panopoly distro using Search API

As of this writing, the latest version of Solr is 5.2.1. In this step by step guide we will install that version and integrate it with Drupal 7 Panopoly distro site using Search API module. Actually, Panopoly distro is already shipped with Search API and Search API Solr Search modules. All we need to do is to configure the pre-setup Search API Solr server and index. The good thing about using Search API is that it is already integrated with Views module and we can do unlimited customization with our search results.

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Web Optimization

Using SASS in Bootstrap Drupal theme

As of this writing, Bootstrap Drupal theme only supports LESS. This tutorial will show how to create bootstrap sub-theme supporting SASS and use Grunt to manage our workflow effectively. My operating system is Windows. Therefore, the shell commands, output, etc. that will be shown here are for Windows.

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Frontend web development tools

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