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#letsencrypt

11 posts9 participants4 posts today

How to Install and Run Mail-in-a-Box on #Ubuntu #VPS This step-by-step guide will show you how to install and run Mail-in-a-Box on Ubuntu VPS. Mail-in-a-Box is an easy-to-deploy mail server solution that automatically configures all necessary services to provide a complete mail system, including DNS, spam filtering, webmail, and more.
📬 What is Mail-in-a-Box?
Mail-in-a-Box is an open-source ...
Continued 👉 blog.radwebhosting.com/how-to- #letsencrypt #selfhosting #mailinabox #selfhosted #opensource

How to Install and Run Mail-in-a-Box on Ubuntu VPS
RadWeb, LLC · How To Install And Run Mail-in-a-Box On Ubuntu VPS - VPS Hosting Blog | Dedicated Servers | Reseller HostingThis step-by-step guide will show you how to install and run Mail-in-a-Box on Ubuntu VPS. Mail-in-a-Box is an easy-to-deploy mail server solution that

Nice. I got all of the DNS records for one of my domains shifted away from my web host's DNS server to Cloudflare and everything including SSL is working now.

The key was I had to turn off proxy for individual DNS records on #cloudflare and then deleted and re add #letsEncrypt #SSL certificates. Then turn back on the proxy setting on the DNS records and everything is good!

This should allow me to get an SSL certificate to add to my #ubiquiti router via Cloudflare.

»Let’s Encrypt unterstützt nun IP-Adress-Zertifikate:
[…] Doch das ändert sich nun. Seit dem 1. Juli 2025 stellt Let’s Encrypt erstmals Zertifikate aus, die direkt an IP-Adressen gebunden sind. Wie zu erwarten, sind dafür bestimmte Voraussetzungen zu erfüllen […]«

Weshalb ist dies an mir vorbei gegangen? Nun ja, nun weiss ich es über @letsencrypt dank dem Artikel von @linuxnews.

🔏 linuxnews.de/lets-encrypt-unte

Logo Let's Encrypt
LinuxNews.de · Let’s Encrypt unterstützt nun IP-Adress-Zertifikate
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@farshidhakimy @aral Absolutely — you're right, this isn’t a brand-new concept. Cloudflare's cert on 1.1.1.1 is a great example of a legitimate use case for IP-based certificates, especially in infrastructure-focused services like public DNS.

And yes, other CAs have issued certs for IP addresses before Let's Encrypt started doing it — so it’s not unprecedented. The shift here is more about accessibility and scale. Let’s Encrypt offering free certs for public IPs means this capability is now much more widely available, even to actors who previously didn’t have the budget or motivation to go through commercial CAs.

That’s where the risk discussion comes in — not that certs for IPs are inherently bad, but that easier issuance could lower the barrier for phishing kits, command-and-control servers, or shady hosts to appear more “legitimate” with a valid HTTPS padlock, especially in contexts where URLs are masked or shortened.

So yeah, not panic-worthy — just something worth watching as it scales.

1.1.1.11.1.1.1 — The free app that makes your Internet faster.Install the free app that makes your phone’s Internet more fast, private, and reliable.