Centmin Mod Managing Letsencrypt DST Root CA X3 Certificate Expiration On CentOS 7

Letsencrypt SSL

On September 30, 2021, Letsencrypt’s DST Root CA X3 cross-sign (by IdentTrust) root certificate expired and was replaced with Letsencrypt’s own ISRG Root X1 CA root certificate. I’ll outline how Centmin Mod LEMP stack handled the Letsencrypt’s DST Root CA X3 certificate expiration for CentOS 7.x operating systems.

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How To Setup Cloudflare Argo Tunnel On CentOS 7

Cloudflare Argo Tunnel Setup

Cloudflare Argo Tunnel allows you to expose your web server to the internet without having to open routes in your firewall or setup dedicated routes. This guide will outline how you can setup Cloudflare Argo Tunnel for private encrypted HTTP/2 connection to your origin web server or web application on CentOS 7 for Centmin Mod LEMP stack users.

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CentOS 7 Python 2.7 Upgrade Deprecation Message – End Of Life January 1st, 2020

Centmin Mod Tips

For CentOS 7 based Centmin Mod users, you may run into the Python 2.7 deprecation message when running CentOS 7 native Python 2.7 and that Python 2.7’s end of life is on January 1, 2020 and that you need to upgrade Python 2.7. You should not upgrade the CentOS 7 native Python 2.7 as that may break your system and YUM operation. Instead, you should install a newer Python version side by side.

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