tls_certificate.md

TLS certificate

If you don't have one already associated with your domain, follow instruction from certbot.

Bullet points:

1. Run certbot

   sudo certbot certonly -d expmonitor.freeddns.org --standalone -v
   

Troubleshooting

1. it may require to open port 80 on the host machine

   sudo ufw allow 80/tcp
   

2. in some particular case of VM it may be needed to run a flush script on iptables:

   #!/bin/sh
   echo "Flushing iptables rules..."
   sleep 1
   iptables -F
   iptables -X
   iptables -t nat -F
   iptables -t nat -X
   iptables -t mangle -F
   iptables -t mangle -X
   iptables -P INPUT ACCEPT
   iptables -P FORWARD ACCEPT
   iptables -P OUTPUT ACCEPT