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› Блог
› Fixing depth_zero_self_signed_cert with Let's Encrypt
The error:
Telegram Bot
depth_zero_self_signed_certoccurs when a self-signed SSL certificate is used, and Git, curl, or other clients do not trust it. The best solution is to replace the self-signed certificate with a free trusted SSL from Let's Encrypt using Certbot.
sudo apt update
sudo apt install certbot python3-certbot-apache -ysudo yum install epel-release -y
sudo yum install certbot python3-certbot-apache -yTo automatically configure SSL for Apache:
sudo certbot --apacheFor Nginx:
sudo certbot --nginxAfter completion, restart your web server:
sudo systemctl restart apache2 # For Apache
sudo systemctl restart nginx # For NginxTo check if the SSL certificate is active, run:
openssl s_client -connect yourdomain.com:443 -showcertsIf successful, the output should show a valid Let's Encrypt certificate.
Check SSL in the Browser:
Go to https://yourdomain.com > Click on the padlock icon > Verify the SSL is issued by Let's Encrypt.
Let's Encrypt certificates expire every 90 days. To ensure automatic renewal, set up a cron job:
sudo crontab -eAdd the following line:
0 3 * * * certbot renew --quietThis runs at 3 AM daily to renew SSL when needed.
Test renewal:
sudo certbot renew --dry-run| Issue | Fix |
|---|---|
| Self-signed certificate error | Install a Let's Encrypt SSL |
| Install Certbot | sudo apt install certbot python3-certbot-apache |
| Issue SSL for Apache | sudo certbot --apache |
| Issue SSL for Nginx | sudo certbot --nginx |
| Set up auto-renewal | sudo crontab -e and add certbot renew --quiet |
Now your server uses a trusted Let's Encrypt SSL certificate!
USD - United States Dollar
EUR - Euro
GBP - British Pound
CAD - Canadian Dollar
CHF - Swiss Franc
JPY - Japanese Yen
AUD - Australian Dollar
RUB - Russian Ruble
TRY - Turkish Lira
CNY - Chinese Yuan
INR - Indian Rupee
UAH - Ukrainian Hryvnia