Tutorials
In-depth technical tutorials, guides, and infrastructure best practices.
LoRA Model Training on Budget GPUs
Set up a GPU environment on Ubuntu for LoRA fine-tuning and train a LoRA adapter on an LLM using QLoRA so you can fine-tune billion-parameter models even on budget GPUs with limited VRAM.
The Ultimate Guide to Hosting Models with FlashAttention
Explore what Flash Attention is, which GPUs support it, and how to install and use it on Ubuntu, both via the Dao AI Lab flash-attn library and PyTorch's built-in SDPA.
GPU-Optimized RAG Pipelines for Fast and Scalable AI
Build a fully self-hosted RAG pipeline on an Ubuntu GPU server, using Hugging Face TEI for GPU-accelerated embeddings, vLLM for LLM inference, and Qdrant as the vector database, all connected through a clean FastAPI query endpoint.
How to Deploy Stable Diffusion on Dedicated GPU Servers for Maximum Performance
Deploy Stable Diffusion on a dedicated GPU server, installing CUDA, AUTOMATIC1111 WebUI, and xformers on Ubuntu, so you can generate AI images privately with full control over models, LoRAs, and performance tuning.
NVIDIA RTX 4090 vs A100 GPUs: Consumer vs Datacenter for Deep Learning
Compare the RTX 4090 and A100 for AI training, covering memory, compute precision, multi-GPU scaling, and cost, so you can choose the right GPU for your workload, whether it's a small vision model or a large language model.
Explore GPU Hosting Alternatives to AWS for AI Training
Compare the best AWS GPU hosting alternatives for AI training, from specialized clouds like Lambda, RunPod, and CoreWeave to bare-metal dedicated GPU servers.
How to Configure Caddy as a Secure Reverse Proxy on a VPS
Install and configure Caddy as a reverse proxy on an Ubuntu VPS, setting up automatic HTTPS, path-based routing, security headers, and multiple domain support with just a few lines in a simple Caddyfile.
Deploying Static Websites with Nginx on a Small VPS
Install and configure Nginx on a micro Ubuntu VPS to host static websites, setting up server blocks, gzip compression, multiple domains, free HTTPS with Let's Encrypt, and basic log monitoring.
VPS Snapshots and Disaster Recovery Strategies
Set up a snapshot-based disaster recovery plan on a VPS using LVM, creating local snapshots for fast rollback, syncing backups to a remote server with rsync, and automating the whole process with cron.
Setting Up Docker Swarm on VPS Clusters
Build a Docker Swarm cluster across multiple Ubuntu VPS nodes, including initializing the manager, joining worker nodes, creating overlay networks, and deploying services with Docker Stack.
Optimize PHP-FPM and Nginx for Ultra-Fast VPS
Tune Nginx and PHP-FPM on a VPS for maximum performance, covering OPcache with JIT, PHP-FPM process manager calculation, FastCGI microcaching, kernel TCP settings, and benchmarking.
Isolated Multi-User VPS Architecture for Agencies
Set up a secure multi-user VPS on Ubuntu for agencies using SFTP chroot jails for file-only clients and Docker containers for full developer workspaces, so each client stays completely isolated on a single server.