DDoS — an attack from many machines to bring down a server.
Layers of defense
- Hosting level — rate limit, fail2ban
- CDN/WAF (Cloudflare, AWS Shield)
- Auto-scaling resources
- DNS provider level
On Sayt.uz hosting
Basic DDoS protection and Imunify360 are on. For large attacks we recommend Cloudflare.
Signs
Slow loading, 503/504 errors, CPU at 100%. Contact your host immediately.