A PFX file is how Windows moves a certificate and its private key together, as one password-protected file. You export one when you are migrating a site to a new server, building a load-balanced pair, or taking a backup before a renewal. You import one when the certificate was issued somewhere else and has to […]
Switching a site from HTTP to HTTPS means installing an SSL certificate on your server, pointing your site at its https URLs, and redirecting the old http ones so nothing is left behind. The work itself takes an afternoon on most sites. Below is the whole process in six steps, plus where the setting lives […]
An SSL error is what a browser shows when it cannot open a trusted encrypted connection to a website. Instead of the page you asked for, you get a warning screen and a short code in small capitals, something like NET::ERR_CERT_AUTHORITY_INVALID or SSL_ERROR_NO_CYPHER_OVERLAP. That code is the useful part, and most guides skip past it. […]