=== 3-③ nginx -t (문서는 [warn] types_hash 줄이 늘 같이 나온다고 적었다) ===
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
=== nginx -v ===
bash: line 5: nginx: command not found
=== 3-② ls -l sites-enabled ===
total 0
lrwxrwxrwx 1 root root 39 Sep 17 04:27 keycloak-lab -> /etc/nginx/sites-available/keycloak-lab
=== 3-④ systemctl status nginx | head -20 ===
● nginx.service - A high performance web server and a reverse proxy server
     Loaded: loaded (/lib/systemd/system/nginx.service; enabled; preset: enabled)
     Active: active (running) since Thu 2026-09-17 04:27:39 UTC; 1min 23s ago
       Docs: man:nginx(8)
    Process: 1041 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process on; (code=exited, status=0/SUCCESS)
    Process: 1042 ExecStart=/usr/sbin/nginx -g daemon on; master_process on; (code=exited, status=0/SUCCESS)
    Process: 1105 ExecReload=/usr/sbin/nginx -g daemon on; master_process on; -s reload (code=exited, status=0/SUCCESS)
   Main PID: 1065 (nginx)
      Tasks: 2 (limit: 1141)
     Memory: 1.8M
        CPU: 12ms
     CGroup: /system.slice/nginx.service
             ├─1065 "nginx: master process /usr/sbin/nginx -g daemon on; master_process on;"
             └─1106 "nginx: worker process"
=== 확인 ① Traefik 직접 (기대 404) ===
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed

  0      0   0      0   0      0      0      0                              0HTTP/1.1 404 Not Found
Content-Type: text/plain; charset=utf-8
X-Content-Type-Options: nosniff
Date: Thu, 17 Sep 2026 04:29:02 GMT
Content-Length: 19

=== 두 노드 비교 ===
404
404
=== 확인 ② 엣지 nginx 직접 (기대 301) ===
404 

  0     19   0      0   0      0      0      0                              0
  0     19   0      0   0      0      0      0                              0
  0     19   0      0   0      0      0      0                              0