Enable Port forwarding (80, 443) from your Router/Firewall to your NPM instance.
SSH Public key, Time Zone and NPM Port Number.
VM/CT:
bash -c "$(wget -qLO - https://raw.githubusercontent.com/vdarkobar/NPM/main/setup.sh)"
Create CloudFlare API Token.
Used for DNS Challenge to create Wildcard Certificates for your entire Domain (unlimited Subdomains).
CloudFlare: Profile > API Tokens > Create Token > Edit zone DNS - Use Template
Create Token: change the name (use Domain name with the star in front: *.example.com)
Permissions: Zone > DNS > Edit
Zone Resources: Include > Specific Zone > example.com
Client IP Address Filtering: *skip or set up if you have fixed ip address
TTL: skip or define how long this token will stay active
Continue to summary > Create Token
Nginx Proxy Manager > SSL Certificates > Add SSL Certificate > Let's Encrypt > Domain Names (enter: *.example.com example.com)
Enable: Use a DNS Challenge > CloudFlare > Credentials File Content * (paste Token after = sign) > Save