Documentation

Provide secure, auditable access to internal servers by routing admin SSH sessions through a hardened bastion host. Prerequisites SSH keypair present (private key kept secure). Bastion host reachable from your client. Bastion user account with key-based auth and, ideally, multi-factor…

Add persistent swap space to prevent OOM errors on memory-constrained VPS. Quick Setup # Create 4GB swap file sudo fallocate -l 4G /swapfile sudo chmod 600 /swapfile sudo mkswap /swapfile sudo swapon /swapfile # Make persistent across reboots echo ‘/swapfile…

Overview This guide covers setting up Cloudflare Origin Certificates with custom SSL paths for Docker Compose applications. Origin Certificates are free and included in Cloudflare’s free tier. Prerequisites Domain managed by Cloudflare (free plan or higher) Docker Compose application with…

Prerequisites Docker and Docker Compose installed Nginx running in Docker container Certbot installed on host Sudo access Step 1: Configure Passwordless Sudo Install certbot sudo apt install certbot Allow certbot to run without password prompts: # Create sudoers entry echo…

Step 1: Check for existing SSH keys Check if you already have an SSH key: ls -al ~/.ssh Look for files like id_rsa, id_ed25519, or id_ecdsa. Step 2: Generate a new SSH key (if needed) If you don’t have an SSH key, generate…

Overview This guide provides instructions for mounting external SFTP/SSH-based storage to serve as the archive directory for an XNAT Docker deployment. This approach enables cost-effective long-term storage while maintaining local VPS resources for temporary processing operations. Prerequisites Root/sudo access to…

Part 1: Initial SSH Connection to Your VPS Step 1: Generate SSH Keys on Your Local Machine If you don’t already have SSH keys, open your terminal and run: ssh-keygen -t rsa -b 4096 Press Enter to accept the default…