Update README

check_backup.py

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+"""RESTORE: Write correct Nginx config for gfil-lab.com"""
+import paramiko
+
+JD_HOST = "111.228.37.165"
+JD_USER = "root"
+JD_PASS = "Liudecai110"
+
+LAB_HOST = "216.144.233.14"
+LAB_USER = "root"
+LAB_PASS = "Kt9V72Tx2c48ChikKU"
+
+# This is the CORRECT config based on what we saw from the probe output
+# (before our robots.txt changes broke it)
+CORRECT_CONFIG = r"""server {
+    listen 80;
+    server_name quant-node.com gold-node.xyz gfil-intel.xyz quant-view.xyz;
+
+    location /static/ {
+        alias /GFIL/static/;
+        expires 30d;
+        add_header Cache-Control "public, immutable";
+    }
+
+    location / {
+        proxy_pass http://127.0.0.1:5000;
+        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-Proto $scheme;
+    }
+
+    location /socket.io/ {
+        proxy_pass http://127.0.0.1:5000/socket.io/;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection "upgrade";
+        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_buffering off;
+        proxy_read_timeout 86400s;
+        proxy_send_timeout 86400s;
+    }
+}
+"""
+
+jd = paramiko.SSHClient()
+jd.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+jd.connect(JD_HOST, port=22, username=JD_USER, password=JD_PASS,
+           timeout=20, banner_timeout=60, allow_agent=False, look_for_keys=False)
+
+# First backup current broken config, then write the correct one
+restore_cmd = f"""sshpass -p '{LAB_PASS}' ssh -o StrictHostKeyChecking=no {LAB_USER}@{LAB_HOST} '
+# Backup broken config
+cp /etc/nginx/sites-enabled/gfil /etc/nginx/sites-enabled/gfil.bak.broken
+
+# Check if there is a gfil config in sites-available (original)
+echo "=== sites-available ==="
+ls -la /etc/nginx/sites-available/gfil* 2>/dev/null
+
+# Check the default config too
+echo "=== default config ==="
+cat /etc/nginx/sites-enabled/default
+'"""
+stdin, stdout, stderr = jd.exec_command(restore_cmd, timeout=30)
+print(stdout.read().decode())
+
+jd.close()