---
title: "#pem articles | Hashnode"
description: "Explore 2 articles tagged #pem on Hashnode. Tutorials, guides, and how-tos from the community."
url: "https://hashnode.com/tag/pem"
---

Tag

# #pem

2 posts · 0 followers

[Nikhil Sai](https://hashnode.com/@nikhilsai244) · [Aug 9](https://hashnode.com/posts/pem-vs-der-and-how-to-read-an-x-509-certificate/6a780c82534372bac0d57cd0)

### [PEM vs DER and How to Read an X.509 Certificate](https://nikhilsaiankilla.hashnode.dev/pem-vs-der-and-how-to-read-an-x-509-certificate?utm_source=hashnode&utm_medium=feed)

A practical guide to PEM vs DER encoding and reading X.509 certificate fields (CN, SAN, validity) without memorizing OpenSSL commands.

3 min read · [nikhilsaiankilla.hashnode.dev](https://nikhilsaiankilla.hashnode.dev/pem-vs-der-and-how-to-read-an-x-509-certificate?utm_source=hashnode&utm_medium=feed)

[Muskan Agrawal](https://hashnode.com/@muskan-agrawal) · [Sep 7, 2025](https://hashnode.com/posts/sadservers-day6-renewing-ssl-certificates/68bd9d500076a9d0cd1cf8f0)

### [Sadservers Day6: Renewing SSL certificates](https://muskanagrawal.hashnode.dev/sadservers-day6-renewing-ssl-certificates?utm_source=hashnode&utm_medium=feed)

How to renew SSL certificate for a Nginx webserver on Linux

2 min read · [muskanagrawal.hashnode.dev](https://muskanagrawal.hashnode.dev/sadservers-day6-renewing-ssl-certificates?utm_source=hashnode&utm_medium=feed)