Cisco SPA 400

Check SSL Certificate mismatch

You can check if an SSL certificate matches a Private Key by using the 3 easy commands below. For your SSL certificate: openssl x509 -noout -modulus -in <file>.crt | openssl md5 For your RSA private key: openssl rsa -noout -modulus -in <file>.key | openssl md5 For your CSR: openssl req -noout -modulus -in <file>.csr | […]

Deploy a Docker registry server with Authentication

Before you can deploy a registry, you need to install Docker on the host. A registry is an instance of the registry image, and runs within Docker. Install docker service with bellow commands. dnf config-manager –add-repo=https://download.docker.com/linux/centos/docker-ce.repo dnf install -y docker-ce –nobest systemctl enable –now docker dockerstatus=`systemctl status docker | grep “active (running)”` echo “Docker Service […]

How to install, setup and configure an OpenVPN Service on CentOS 5

In this tutorial, we will learn how to install, setup and configure an OpenVPN Service on CentOS 5 as well as configuring the firewall to allow vpn traffic. Clients configuration will be done in the linked article, available at the bottom of this tutorial. Topology used in this scenario: 1 Ethernet card (eth0) connected to […]