diff --git a/BTCPayServer/certbot.md b/BTCPayServer/certbot.md
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+# Certbot commands
+
+```
+echo "Input your email:"
+read EMAIL
+
+echo "Input 3 subdomains separated with commas (eg: pay.example.com,tips.example.com,status.example.com)"
+read SUBDOMAINS
+
+firstDomain=$(echo $SUBDOMAINS|cut -d"," -f1)
+```
+
+* see details of a certificate
+```
+sudo openssl x509 -in /etc/letsencrypt/live/$firstDomain/fullchain.pem -text
+```
+
+* force renewal
+```
+sudo certbot certonly --force-renewal -a standalone -m $EMAIL --agree-tos -d $SUBDOMAINS --expand -n --pre-hook "service nginx stop" --post-hook "service nginx start"
+```
+
+* logs
+```
+sudo tail -n100 /var/log/letsencrypt/letsencrypt.log
+```
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