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Deploy a wildcard certificate

Configure and distribute a cert for *.example.com.

Deploy a wildcard certificate

A wildcard certificate (*.example.com) secures all same-level subdomains.

Notes

  • Wildcards can only be issued via DNS validation.
  • *.example.com covers a.example.com and b.example.com, but not example.com itself.

Distribute

scp fullchain.crt key.pem web01:/etc/nginx/ssl/
ssh web01 nginx -s reload
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