NVIDIA Driver Reinstallation & Downgrade Guide for Ubuntu
Content1 Prerequisite2 Install DKMS Package3 Remove Existing NVIDIA Drivers4 Configure the Official NVIDIA Repository5 Install Latest NVIDIA Drivers6 Install Specific Versions of NVIDIA Drivers7 Example Installation Using 570 Drivers with…
Installing and Configuring n8n on Ubuntu 24.04 Using Docker and Nginx
Content1 Prerequisites2 Install Docker and Docker Compose3 Create the n8n Directory Structure4 Configure Docker Compose for n8n5 Install and Configure Nginx6 Configure Firewall Rules7 Install Certbot and Apply TLS Certificates8…
Git Fetch Explained: Update Remotes Safely and Cleanly
Content1 The Short Answer Version2 Common Options for git fetch3 Fetch All Remote Updates4 Fetch a Specific Remote Branch5 Fetch from All Remotes6 Clean Up Deleted Remote Branches7 Conclusion Vijona25.…
Nmap Tutorial: Network Scanning and Vulnerability Detection Guide
Content1 Prerequisites2 The nmap Command3 Performing a Basic Port Scan4 Detecting Service Versions and Operating Systems5 Vulnerability Scanning with the Nmap Scripting Engine (NSE)6 Fixing the Vulnerability7 Conclusion Vijona25. November…
Deploy and Secure Kubernetes Dashboard with Helm & Nginx
Content1 Prerequisites2 Install Kubernetes Dashboard3 Configure Access to the Kubernetes Dashboard4 Access the Kubernetes Dashboard5 Secure the Kubernetes Dashboard6 Deploy Applications via the Kubernetes Dashboard7 Conclusion Vijona25. November 2025 Deploy…
Install WireGuard VPN on Ubuntu 24.04 – Secure and Fast VPN Setup Guide
Content1 Prerequisites2 Install WireGuard3 Configure WireGuard4 Generate Client Configurations5 Manage the WireGuard Service6 Set Up Firewall Rules7 Enable IP Forwarding8 Apply NAT Rules9 Connect Clients to WireGuard VPN10 Conclusion Vijona25.…
Install and Secure HashiCorp Vault on Ubuntu 24.04 with Let’s Encrypt
Content1 Prerequisites2 Install Vault from HashiCorp Repository3 Configure Firewall Access4 Generate TLS Certificates with Let’s Encrypt5 Configure Vault for Production6 Set Up the Vault Environment7 Initialize and Unseal Vault8 Access…
Install and Configure Nginx UI on Ubuntu 24.04 with Let’s Encrypt
Content1 Prerequisites2 Install Nginx UI3 Configure Nginx Reverse Proxy4 Secure Nginx UI with Let’s Encrypt5 Access the Nginx UI Interface6 Manage TLS Certificates7 Create Virtual Host Configurations8 Greetings from centron!9…
Install and Secure Authentik on Ubuntu with Docker Compose
Content1 Prerequisites2 Deploy Authentik Using Docker Compose3 Configure Caddy or NGINX with HTTPS4 Perform the Initial Authentik Setup5 Connect a Sample Application to Authentik6 Sample Node.js OAuth2 Integration Application7 Troubleshooting8…