Nginx

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.

Setup Solr Admin web interface in Nginx

This article will guide on setting up Solr Admin web interface in Nginx. If you haven't installed Solr in your system, please check this article Step by step guide to setup Apache Solr 5.x in CentOS 7 for Drupal 7 Panopoly distro using Search API. Please follow this guide if you haven't setup your Nginx yet.

  1. Create a domain for Solr, in this guide lets use solr.mywebsite.com. Go to DNS manager and add "solr" as A record for mywebsite.com

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How to handle 404 not found Pagespeed optimized resources in Nginx

Pagespeed rename the static resources (like images, CSS, etc.) file name to mark as optimized and there instances where the Pagespeed optimized web pages' resources returns 404 not found and for several browser refresh they eventually loads up. In this case, Pagespeed is still in the process of optimizing the web pages' resources. We can handle this issue by the following Nginx script:

Solution to PHP script at home page is downloaded instead of executed

The issue is only at the website home page's PHP script has the download behaviour but the rest of the website pages' PHP script run normally. In this article will show two solutions. This issue is very hard to debug because there are no helpful logs that will give hint on solving this issue. Actually, I was debugging a "Permission denied" issue and the fixes I tried to apply to this resulted to our main topic issue. The web server setup: Nginx as reverse proxy to Apache and under a web hosting control panel.

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Implementing Nginx PageSpeed module's Shard domains with Drupal site

The web browsers by default limits number of concurrent connections for each host. When that limit exceeds, the resources (like CSS, images, etc.) will remain in queue waiting to be downloaded until the prior downloads are completed. This results slow page load times user experience. One solution to reduce page load time is by domain sharding. This technique splits the resources download across multiple sub-domains (eg. static1.webfoobar.com, static2.webfoobar.com) resulting an increase in simultaneous connections.

Setup alternative Twitter Bootstrap based Munin template

The Munin's generated web pages are very old fashioned and dull. Its design uses tables with small text and too much spaces. This guide will show how to change the Munin's template and should be continuation of Setup Munin on CentOS 7 with nginx. There will be two alternative Munin 2.x templates will be shown here:

1. Munin Dynamic Template

This alternative template uses jQuery and Twitter Bootstrap for Munin 1.x and 2.x versions that enhanced user experience and improve web pages' appearance. The following are the steps to setup this template:

Installing Monit to monitor your server running CentOS 7 with nginx

Monit can manage and monitor processes, programs, files, directories and filesystems of your UNIX server for you. You can program Monit to execute action for events like: service stops running or its using too much CPU or a host is unreachable. The following steps are tested running on my Linode server running Centos 7 64-bit. It is assumed that nginx is already installed in your system. If not, please follow this guide.

Setup Munin on CentOS 7 with nginx

Munin provides web interface showing graphs about your server's load average, memory usage, CPU usage, MySQL throughput, eth0 traffic, etc. Although it lets you monitor more than one server, this article will discuss the monitoring of the system where it is installed. The following steps are tested running on my Linode server running Centos 7 64-bit. It is assumed that nginx is already installed in your system. If not, please follow this guide.