Using OpenSSL CLI to Check Information About Website TLS Certificates

In the realm of DevOps and IT security, ensuring that your web applications are secure is paramount. One of the fundamental aspects of web security is the use of TLS (Transport Layer Security) certificates, which encrypt data between the client and server, ensuring privacy and data integrity. OpenSSL, a robust open-source toolkit, provides a command-line interface (CLI) that allows you to inspect and verify TLS certificates with ease. This article will guide you through using OpenSSL CLI to check information about a website’s TLS certificate.

Creating a Simple Certification Authority Using Bash Script and OpenSSL

In today’s digital landscape, securing communications and data integrity is paramount. One of the foundational elements of this security is the use of certificates, which are often issued by a Certification Authority (CA). While there are many commercial and open-source CAs available, sometimes you need a simple, custom solution for internal use or testing purposes. In this article, we’ll explore how to create a simple CA using a Bash script and OpenSSL, a robust open-source toolkit for SSL/TLS.

Using OpenSSL CLI to Check Information from Certificates in PEM Format

In the world of DevOps, managing and verifying SSL/TLS certificates is a crucial task to ensure secure communication between systems. OpenSSL, a robust open-source toolkit, provides a command-line interface (CLI) that allows you to perform various operations on certificates, including checking information from certificates in PEM format. This article will guide you through the process of using OpenSSL CLI to extract and verify information from PEM-encoded certificates. What is PEM Format?