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Let's Encrypt tutorial — automatické HTTPS certifikáty

15. 08. 2025 1 min read intermediate

Let’s Encrypt poskytuje bezplatné TLS certifikáty s automatickou obnovou. Žádný důvod nemít HTTPS.

Installation a použití

sudo apt install certbot python3-certbot-nginx sudo certbot –nginx -d example.com -d www.example.com

Wildcard certifikát

sudo certbot certonly –dns-cloudflare \ –dns-cloudflare-credentials /etc/letsencrypt/cloudflare.ini \ -d ‘*.example.com’ -d example.com

Automatická obnova

sudo certbot renew –dry-run

Crontab: 0 0 1 * * certbot renew –quiet –deploy-hook “systemctl reload nginx”

Key Takeaway

Let’s Encrypt + certbot = bezplatné HTTPS za 5 minut. Nastavte automatickou obnovu.

securitylet's encrypthttpscertbot
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CORE SYSTEMS tým

Stavíme core systémy a AI agenty, které drží provoz. 15 let zkušeností s enterprise IT.