Answers for "letsencrypt problem binding port 80 could not bind to ipv4"

2

Problem binding to port 80: Could not bind to IPv4 or IPv6 letsencrypt

You just need to stop all running servers like Apache, nginx or OpenShift 
before doing this.

### Stop Nginx
sudo systemctl stop nginx

### Stop Apache2
sudo systemctl stop apache2
Posted by: Guest on May-28-2021

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