1/ 💡 Step 1: Preparation
Before you begin, ensure your server has a domain name properly configured and accessible from the internet. SSH into your server with admin privileges.
Before you begin, ensure your server has a domain name properly configured and accessible from the internet. SSH into your server with admin privileges.
2/ 🚀 Step 2: Install Certbot
Install Certbot, the official Let's Encrypt client. Use the package manager for your Linux distribution. For example, on Ubuntu, use: sudo apt-get install certbot
Install Certbot, the official Let's Encrypt client. Use the package manager for your Linux distribution. For example, on Ubuntu, use: sudo apt-get install certbot
3/ 🔒 Step 3: Get Certificates
Run Certbot to obtain SSL certificates for your domain. Use the certonly option for manual configuration.
Example:
sudo certbot certonly --manual -d yourdomain[dot]com
Follow on-screen instructions for challenges (usually HTTP or DNS).
Run Certbot to obtain SSL certificates for your domain. Use the certonly option for manual configuration.
Example:
sudo certbot certonly --manual -d yourdomain[dot]com
Follow on-screen instructions for challenges (usually HTTP or DNS).
4/ 📝 Step 4: Verify Challenges
For HTTP challenges, place a file provided by Certbot in your web server's root directory. For DNS challenges, add TXT records as instructed. Wait for verification.
For HTTP challenges, place a file provided by Certbot in your web server's root directory. For DNS challenges, add TXT records as instructed. Wait for verification.
5/ ✅ Step 5: Certificates Obtained
Certbot will notify you when the certificates are obtained successfully. Certificates will be stored in /etc/letsencrypt/live/yourdomain.com/.
Certbot will notify you when the certificates are obtained successfully. Certificates will be stored in /etc/letsencrypt/live/yourdomain.com/.
6/🏢Step 6: Configure Web Server
Update web server (Apache/Nginx) config to use the Let's Encrypt certs
Eg for Nginx:
ssl_certificate /etc/letsencrypt/live/urdomain.com/fullchain.pem;
ssl_certificate_key
/etc/letsencrypt/live/urdomain.com/privkey.pem;
Reload/Restart web server
Update web server (Apache/Nginx) config to use the Let's Encrypt certs
Eg for Nginx:
ssl_certificate /etc/letsencrypt/live/urdomain.com/fullchain.pem;
ssl_certificate_key
/etc/letsencrypt/live/urdomain.com/privkey.pem;
Reload/Restart web server
7/ 🔄 Step 7: Automatic Renewal
Configure automatic certificate renewal with a cron job. Run crontab -e and add a line like this:
0 0 * * * certbot renew --quiet
Configure automatic certificate renewal with a cron job. Run crontab -e and add a line like this:
0 0 * * * certbot renew --quiet
8/ 🛡️ Step 8: Secure Your Site
Test your website to ensure it's serving over HTTPS. Additionally, consider implementing security headers and best practices.
Test your website to ensure it's serving over HTTPS. Additionally, consider implementing security headers and best practices.
9/ 🎉 Step 9: Done!
You've successfully obtained and applied Let's Encrypt certificates to your Linux server. Your site is now secure with HTTPS!
You've successfully obtained and applied Let's Encrypt certificates to your Linux server. Your site is now secure with HTTPS!
Bonus Time 😍💰
Here are a few additional steps you might want to consider to enhance the security and functionality of your Let's Encrypt certificates on your Linux server 👇
Here are a few additional steps you might want to consider to enhance the security and functionality of your Let's Encrypt certificates on your Linux server 👇
🔍Step 10: Enable HSTS (HTTP Strict Transport Security)
Add an HSTS header to ur web server config to enforce HTTPS.
Eg for Nginx:
add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload";
This tells browsers to always use HTTPS when visiting ur site
Add an HSTS header to ur web server config to enforce HTTPS.
Eg for Nginx:
add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload";
This tells browsers to always use HTTPS when visiting ur site
11/ 🔄 Step 11: Test Automatic Renewal
Confirm that your automatic renewal cron job is working correctly by monitoring the renewal process.
Run certbot renew --dry-run to simulate a renewal.
Confirm that your automatic renewal cron job is working correctly by monitoring the renewal process.
Run certbot renew --dry-run to simulate a renewal.
12/ 🚫 Step 12: Disable Unencrypted Traffic
Update your web server config to redirect all HTTP traffic to HTTPS. This ensures that visitors are always using a secure connection.
Update your web server config to redirect all HTTP traffic to HTTPS. This ensures that visitors are always using a secure connection.
13/ 📜 Step 13: Set Up OCSP Stapling (Online Certificate Status Protocol)
Configure OCSP stapling to improve SSL/TLS certificate validation performance and security.
Example for Nginx: ssl_stapling on; ssl_stapling_verify on; resolver 8.8.8.8; # Use a reliable DNS resolver
Configure OCSP stapling to improve SSL/TLS certificate validation performance and security.
Example for Nginx: ssl_stapling on; ssl_stapling_verify on; resolver 8.8.8.8; # Use a reliable DNS resolver
14/ 📅 Step 14: Monitor Certificate Expiry
Set up a monitoring system to alert you when certificates are about to expire. This ensures you can address renewals promptly.
Set up a monitoring system to alert you when certificates are about to expire. This ensures you can address renewals promptly.
15/ 🧩 Step 15: Explore Additional Security Measures
Depending on your server's purpose, consider implementing a Web Application Firewall (WAF), intrusion detection systems (IDS), or other security tools.
Depending on your server's purpose, consider implementing a Web Application Firewall (WAF), intrusion detection systems (IDS), or other security tools.
16/ 📝 Step 16: Document the Process
Create documentation outlining the steps you've taken for future reference and for any team members who may need to manage the server.
Create documentation outlining the steps you've taken for future reference and for any team members who may need to manage the server.
17/ 🔄 Step 17: Regularly Review and Update
Stay informed about Let's Encrypt updates and security best practices. Periodically review and update your server's security configuration.
Stay informed about Let's Encrypt updates and security best practices. Periodically review and update your server's security configuration.
That's it! You've secured ur Linux server with Let's Encrypt certificates. Remember to keep ur certs & server software up-to-date for continued security.
Security is an ongoing process, & regular maintenance is crucial. #LinuxSecurity #HTTPS #WebServer #LetsEncrypt #SSL 🛡️🔒
Security is an ongoing process, & regular maintenance is crucial. #LinuxSecurity #HTTPS #WebServer #LetsEncrypt #SSL 🛡️🔒
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