Last week, Let’s Encrypt came out of beta. Let’s Encrypt is a collaborative effort that provides free SSL/TLS certificates for use by anyone with a valid Internet domain. It’s also a trusted certificate authority, and it’s currently issuing 90-day certificates free of charge. The upside is free SSL/TLS certificates. The downside is that 90-day expiration, though there are methods to renew the certificates automatically as the expiration approaches.Further, the tools provided by Let’s Encrypt make it pretty much effortless to implement. The Let’s Encrypt Python tool available at GitHub runs on a Web server, requests a valid certificate, and even does the Apache configuration for you, all with a pretty ncurses UI. Basically, you run this on a host with a bunch of non-SSL domains, and when it’s done, they’re all secured with free valid certificates.