nginx: client address headers only from $remote_addr (realip). X-Forwarded-For was appended to and CF-Connecting-IP passed through from the client, so a request reaching the origin without Cloudflare (DNS-only host or the bare IP) chose the address the service bans and rate-limits by

ddiff --git a/deploy/nginx/openvibe.tips.conf b/deploy/nginx/openvibe.tips.conf
iindex 3f9fe42..38b7355 100644
---- a/deploy/nginx/openvibe.tips.conf
++++ b/deploy/nginx/openvibe.tips.conf
@@@ -62,7 +62,8 @@ server {
          proxy_http_version 1.1;
          proxy_set_header Host $host;
          proxy_set_header X-Real-IP $remote_addr;
--        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
++        proxy_set_header X-Forwarded-For $remote_addr;
++        proxy_set_header CF-Connecting-IP $remote_addr;
          proxy_set_header X-Forwarded-Proto $scheme;
      }
  
@@@ -72,7 +73,8 @@ server {
          proxy_http_version 1.1;
          proxy_set_header Host $host;
          proxy_set_header X-Real-IP $remote_addr;
--        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
++        proxy_set_header X-Forwarded-For $remote_addr;
++        proxy_set_header CF-Connecting-IP $remote_addr;
          proxy_set_header X-Forwarded-Proto $scheme;
      }
  
@@@ -84,7 +86,9 @@ server {
          proxy_http_version 1.1;
          proxy_set_header Connection '';
          proxy_set_header Host $host;
--        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
++        proxy_set_header X-Real-IP $remote_addr;
++        proxy_set_header X-Forwarded-For $remote_addr;
++        proxy_set_header CF-Connecting-IP $remote_addr;
          proxy_set_header X-Forwarded-Proto $scheme;
          proxy_buffering off;
          proxy_cache off;
@@@ -98,7 +102,8 @@ server {
          proxy_http_version 1.1;
          proxy_set_header Host $host;
          proxy_set_header X-Real-IP $remote_addr;
--        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
++        proxy_set_header X-Forwarded-For $remote_addr;
++        proxy_set_header CF-Connecting-IP $remote_addr;
          proxy_set_header X-Forwarded-Proto $scheme;
      }
  
@@@ -107,7 +112,8 @@ server {
          proxy_http_version 1.1;
          proxy_set_header Host $host;
          proxy_set_header X-Real-IP $remote_addr;
--        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
++        proxy_set_header X-Forwarded-For $remote_addr;
++        proxy_set_header CF-Connecting-IP $remote_addr;
          proxy_set_header X-Forwarded-Proto $scheme;
      }