Deepak Prasad

Technically you can't renew expired root CA certificate instead you can create a new root ca certificate using private key with openssl. The new root CA certificate can be used to verify old certificates.

Step by Step instructions to renew SSL or TLS certificate (server/client) using OpenSSL command. Retain all SAN fields with X.509 extensions during renewal of certificate.

Step by Step instructions to renew self-signed certificate using OpenSSL command. Export CSR using expired certificate and using existing private key we can renew any kind of certificate

Step by Step instructions to use shell script to generate certificates with openssl. generate both self signed and rootCA signed certificates using bash or shell script without any prompt.

We must consider some important point when creating CSR or else we may face issues later while using the certificate

Step by Step instructions to manually expire any certificate using openssl. Different commands and methods to generate an expired certificate

Detailed comparison between openssl ca vs openssl x509 command with examples. Similarities and difference between ca vs x509 argument of openssl command

Step by Step instructions to add X.509 extensions to certificates, CSR, RootCA using openssl command.

Step by step instructions to generate duplicate certificates with OpenSSL CA using the same CSR with same Subject (Common Name) in all the certificates

Step by step guide to revoke missing or lost certificate using openssl. We can manually update the CA database to mark any certificate revoked and generate CRL

Install an SSL certificate on Nginx in just 4 steps. Secure your website with HTTPS and gain the trust of your visitors with a valid SSL certificate.

Top 10 Open-Source Vpn Software for Linux. Check out our list and the pros and cons for every VPN software and choose what suits you best.

Escaping single quotes in SQL is necessary once you want to include a literal single quote character (') in a string within your SQL queries. This is

Step by Step guide to upgrade or migrate CentOS 7 and 8 to Rocky Linux 8. There will be no data loss during the migration.

The process of upgrading from CentOS 7 to CentOS 8 is not straightforward. There are significant differences between the two versions, including the

Lately while working on Kali Linux I encountered this error when trying to execute yersinia -G and the Yersinia GUI was not working.

Step by step instructions to create or build a PAM Module using Golang and CGO language. The PAM module will import the required C functions using CGO and use them in GO to perform the actual validation for …

This tutorial will guide you through steps to install Gobuster on Ubuntu, configuring it, and basic to advanced usage tips, including working with wordlists and uninstalling if needed.

Step by step instructions to install kali linux on android with screenshots. Even though we have successfully installed a full-featured Kali Linux on Android device, running some utilities that require root permission on …

In the bustling metropolis that is the cloud, our first line of defence against digital wrongdoers is what's known as the Identity provider, or IdP for short.

DevSecOps is like adding a security guard to the team that builds and maintains software. In the old way of doing things, this security guard would only check

In this fierce era of competition, cloud computing is no longer just an option for businesses. It has occupied the business world lately. Whether it is a

In this tutorial, we'll guide you through steps to install Darktable on Ubuntu, a powerful photo editing tool. We'll cover different methods including APT, PPA, and Flatpak, launching the program, and some basic tips for …

Step by step instructions to install Kali Linux on Apple M1 Laptop using UTM

Discover the ultimate guide to mastering pandas concat in Python. Whether you're a beginner or an experienced professional, our comprehensive guide offers actionable tips, best practices, and real-world examples to …

Imagine locking every door and window in your house, only to realize there's a hidden passage you've overlooked that's what it's like without the vital

Explore the comprehensive guide to pandas iloc, the powerful indexer for pandas DataFrames and Series. Learn through examples and FAQs how to perform simple to advanced data manipulations. Perfect for beginners and …

Flask SQLAlchemy is an extension for flask that adds support for SQLAlchemy to flask by adding useful defaults and helpers that simplify basic tasks

how to add row/s to an existing panda dataframe using append(), loc[] and concat() functions. We also included and excluded indices with concat() function.

In this tutorial we will cover multiple examples to understand the difference between list.append() vs list.extend() method. We will [erform a 1 to 1 comparison between these methods.