web servers in the cloud Archives - Page 3 of 6

Anna E Kobylinska 2016-02-21 1 Comment

How to renew a Letsencrypt certificate

In a post titled How to Set Up Letsencrypt, the SSL-Certificate Engine for the Cloud Era of Hyperscale, on AWS EC2, we have introduced you to this free, open, and fully automated Certificate Authority backed by the likes of Facebook (a gold sponsor), and discussed a manual setup for adventurers in How to Use Letsencrypt across Servers in the Manual Configuration Mode with a CSR.

Now is the time to discuss how to extend the validity of a Letsencrypt certificate for up to another 90 days of blissful happiness.

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Cloud Insidr 2016-02-14 1 Comment

WordPress Says Your Host May Have Disabled The mail() Function. Here Is How to Fix It.

Some WordPress installations stubbornly refuse requests for a password reset link, showing the user this error message instead:

The email could not be sent.
Possible reason: your host may have disabled the mail() function.

WordPress’ error massage is anything but insightful. The underlying cause usually involves SELinux. Let us introduce you to an easy fix that does not involve plug-ins or external email services. Buckle up.

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Anna E Kobylinska 2016-02-10 4 Comments

How to set up Letsencrypt certificates on AWS EC2

[updated 2018-06-12] As browser makers continue their push for HTTPS and mobile applications are becoming the target of MITM (man-in-the-middle) attacks, cloud developers and administrators are scrambling to find affordable SSL certificates that can live up to the demands of the cloud era. Enter Let’s Encrypt, a new Certificate Authority that is open, fully automated, and free to use, with an almost unprecedented, generous allotment of 100 host names per certificate. Let’s Encrypt delivers on the promise of a worry-free, fully encrypted web 3.0. Cloud Insidr lifts the veil off of Let’s Encrypt’s setup, configuration, its few surprises and hidden gems.

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Anna E Kobylinska 2016-02-10 2 Comments

How to Use Letsencrypt across Servers in the Manual Configuration Mode with a CSR

Generating SSL certificates when Letsencrypt (what is Letsencrypt, who is behind it, and how the heck can you get started) is available for your system works in a breeze, but what if you need your certificates for a machine that won’t take Letsencrypt (for whatever reason)? It is still possible: you can either grab Letsencrypt from Git, or, for reasons of practicality… create a certificate signing request (CSR) on your target server, transfer it to your letsencrypt instance, generate the certificates you need, then transfer the generated files back to your target instance and install the certificates in your software.

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Anna E Kobylinska 2016-02-05 Leave a Comment

How to Set up ip2nation: Geotargeting Made Easy for the Amazon Link Affiliate Plug-in and Your Server-Side Scripts

The Amazon Link plug-in for WordPress implements geotargeting based on ip2nation, a free geotargeting library from Per Gustafsson Consulting (available here). If you are wondering what you need to do in order to integrate the Amazon Link affiliate plug-in for WordPress (seing how a separate installation plugin for WordPress is two years old as of this writing, and counting), here is a quick howto for those who can access their websites’ MySQL or MariaDB database servers.

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