diff --git a/AGENTS.md b/AGENTS.md
index b0f02e7..c51e59e 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -131,6 +131,10 @@ tail -100 ~/mt5-docker/config/.wine/drive_c/Program\ Files/MetaTrader\ 5/MQL5/Lo
 - **Largest Win:** $8,091
 - **Largest Loss:** -$805
 
+## DevOps / Infrastructure
+
+Server infrastructure details saved in: `/home/garfield/devops/INFRASTRUCTURE.md`
+
 ## Conversation History
 
 Before working on this codebase, read:
@@ -138,6 +142,7 @@ Before working on this codebase, read:
 conversation-history/2026-03-21-mql-trading-bots.md
 conversation-history/2026-03-29-session-save.md
 conversation-history/2026-03-30-weekend-gap-short-signal-fix.md
+conversation-history/2026-03-30-dns-whitelist.md
 ```
 
 ## Notes for AI Agents
diff --git a/n8n-workflow-http.json b/n8n-workflow-http.json
new file mode 100644
index 0000000..ea07fb6
--- /dev/null
+++ b/n8n-workflow-http.json
@@ -0,0 +1,89 @@
+{
+  "name": "MQL Settings Monitor - HTTP Version",
+  "nodes": [
+    {
+      "parameters": {
+        "rule": {
+          "interval": [
+            {
+              "field": "hours",
+              "hoursInterval": 6
+            }
+          ]
+        }
+      },
+      "name": "Every 6 Hours",
+      "type": "n8n-nodes-base.scheduleTrigger",
+      "typeVersion": 1,
+      "position": [250, 300]
+    },
+    {
+      "parameters": {
+        "requestMethod": "POST",
+        "url": "http://localhost:8080/validate",
+        "options": {
+          "timeout": 30000
+        }
+      },
+      "name": "Call Validation API",
+      "type": "n8n-nodes-base.httpRequest",
+      "typeVersion": 1,
+      "position": [450, 300]
+    },
+    {
+      "parameters": {
+        "conditions": {
+          "string": [
+            {
+              "value1": "={{ $json.status }}",
+              "operation": "equal",
+              "value2": "error"
+            }
+          ]
+        }
+      },
+      "name": "Has Issues?",
+      "type": "n8n-nodes-base.if",
+      "typeVersion": 1,
+      "position": [650, 300]
+    },
+    {
+      "parameters": {
+        "chatId": "={{ $env.TELEGRAM_CHAT_ID }}",
+        "text": "=🚨 MQL Settings Alert:\n\n{{ $json.message }}\n\nIssues: {{ $json.issues }}\n\n⏰ {{ new Date().toISOString() }}"
+      },
+      "name": "Send Telegram",
+      "type": "n8n-nodes-base.telegram",
+      "typeVersion": 1,
+      "position": [850, 200]
+    },
+    {
+      "parameters": {},
+      "name": "No Action",
+      "type": "n8n-nodes-base.noOp",
+      "typeVersion": 1,
+      "position": [850, 400]
+    }
+  ],
+  "connections": {
+    "Every 6 Hours": {
+      "main": [
+        [{ "node": "Call Validation API", "type": "main", "index": 0 }]
+      ]
+    },
+    "Call Validation API": {
+      "main": [
+        [{ "node": "Has Issues?", "type": "main", "index": 0 }]
+      ]
+    },
+    "Has Issues?": {
+      "main": [
+        [{ "node": "Send Telegram", "type": "main", "index": 0 }],
+        [{ "node": "No Action", "type": "main", "index": 0 }]
+      ]
+    }
+  },
+  "settings": {},
+  "staticData": null,
+  "tags": []
+}
diff --git a/n8n-workflow-ssh.json b/n8n-workflow-ssh.json
new file mode 100644
index 0000000..92f98ad
--- /dev/null
+++ b/n8n-workflow-ssh.json
@@ -0,0 +1,98 @@
+{
+  "name": "MQL Settings Monitor - SSH Version",
+  "nodes": [
+    {
+      "parameters": {
+        "rule": {
+          "interval": [
+            {
+              "field": "hours",
+              "hoursInterval": 6
+            }
+          ]
+        }
+      },
+      "name": "Every 6 Hours",
+      "type": "n8n-nodes-base.scheduleTrigger",
+      "typeVersion": 1,
+      "position": [250, 300]
+    },
+    {
+      "parameters": {
+        "command": "/home/garfield/mql-trading-bots/scripts/validate-settings.sh",
+        "cwd": "/home/garfield/mql-trading-bots"
+      },
+      "name": "Run Validation Script",
+      "type": "n8n-nodes-base.ssh",
+      "typeVersion": 1,
+      "position": [450, 300],
+      "credentials": {
+        "sshPassword": {
+          "id": "local-ssh",
+          "name": "Local SSH"
+        }
+      }
+    },
+    {
+      "parameters": {
+        "conditions": {
+          "number": [
+            {
+              "value1": "={{ $json.code }}",
+              "operation": "notEqual",
+              "value2": 0
+            }
+          ]
+        }
+      },
+      "name": "Issues Found?",
+      "type": "n8n-nodes-base.if",
+      "typeVersion": 1,
+      "position": [650, 300]
+    },
+    {
+      "parameters": {
+        "chatId": "={{ $env.TELEGRAM_CHAT_ID }}",
+        "text": "=🚨 MQL Settings Issues:\n\n{{ $json.stdout }}\n\n⏰ {{ new Date().toISOString() }}"
+      },
+      "name": "Send Telegram Alert",
+      "type": "n8n-nodes-base.telegram",
+      "typeVersion": 1,
+      "position": [850, 200],
+      "credentials": {
+        "telegramApi": {
+          "id": "telegram-bot",
+          "name": "Telegram Bot"
+        }
+      }
+    },
+    {
+      "parameters": {},
+      "name": "No Issues",
+      "type": "n8n-nodes-base.noOp",
+      "typeVersion": 1,
+      "position": [850, 400]
+    }
+  ],
+  "connections": {
+    "Every 6 Hours": {
+      "main": [
+        [{ "node": "Run Validation Script", "type": "main", "index": 0 }]
+      ]
+    },
+    "Run Validation Script": {
+      "main": [
+        [{ "node": "Issues Found?", "type": "main", "index": 0 }]
+      ]
+    },
+    "Issues Found?": {
+      "main": [
+        [{ "node": "Send Telegram Alert", "type": "main", "index": 0 }],
+        [{ "node": "No Issues", "type": "main", "index": 0 }]
+      ]
+    }
+  },
+  "settings": {},
+  "staticData": null,
+  "tags": []
+}
diff --git a/scripts/setup-cron.sh b/scripts/setup-cron.sh
new file mode 100755
index 0000000..10ddcd9
--- /dev/null
+++ b/scripts/setup-cron.sh
@@ -0,0 +1,27 @@
+#!/bin/bash
+# Setup cron job for MQL settings monitoring
+
+echo "Setting up cron job for MQL settings monitoring..."
+
+# Check if python3 is available
+if ! command -v python3 &> /dev/null; then
+    echo "ERROR: python3 not found"
+    exit 1
+fi
+
+# Create cron entry
+CRON_CMD="0 */6 * * * cd /home/garfield/mql-trading-bots && python3 scripts/validate-and-notify.py >> /tmp/mql-validate.log 2>&1"
+
+# Add to crontab
+(crontab -l 2>/dev/null; echo "$CRON_CMD") | crontab -
+
+echo "Cron job added: Runs every 6 hours"
+echo "Logs: /tmp/mql-validate.log"
+echo ""
+echo "To configure Telegram notifications, set these environment variables:"
+echo "  export TELEGRAM_BOT_TOKEN='your_bot_token'"
+echo "  export TELEGRAM_CHAT_ID='your_chat_id'"
+echo ""
+echo "Add these to your ~/.bashrc to persist:"
+echo "  echo 'export TELEGRAM_BOT_TOKEN=\"your_token\"' >> ~/.bashrc"
+echo "  echo 'export TELEGRAM_CHAT_ID=\"your_id\"' >> ~/.bashrc"
diff --git a/scripts/validate-and-notify.py b/scripts/validate-and-notify.py
new file mode 100755
index 0000000..a288251
--- /dev/null
+++ b/scripts/validate-and-notify.py
@@ -0,0 +1,157 @@
+#!/usr/bin/env python3
+"""
+MQL Settings Validator with Telegram Notifications
+Run via cron: python3 validate-and-notify.py
+"""
+
+import os
+import re
+import subprocess
+import sys
+from datetime import datetime
+
+try:
+    import requests
+except ImportError:
+    print("Installing requests...")
+    subprocess.run([sys.executable, "-m", "pip", "install", "requests", "-q"])
+    import requests
+
+# Configuration
+TELEGRAM_BOT_TOKEN = os.environ.get("TELEGRAM_BOT_TOKEN", "")
+TELEGRAM_CHAT_ID = os.environ.get("TELEGRAM_CHAT_ID", "")
+REPO_DIR = "/home/garfield/mql-trading-bots"
+
+def send_telegram(message):
+    """Send message to Telegram"""
+    if not TELEGRAM_BOT_TOKEN or not TELEGRAM_CHAT_ID:
+        print("Telegram not configured. Message:")
+        print(message)
+        return False
+    
+    url = f"https://api.telegram.org/bot{TELEGRAM_BOT_TOKEN}/sendMessage"
+    payload = {
+        "chat_id": TELEGRAM_CHAT_ID,
+        "text": message,
+        "parse_mode": "HTML"
+    }
+    
+    try:
+        response = requests.post(url, json=payload, timeout=10)
+        return response.status_code == 200
+    except Exception as e:
+        print(f"Failed to send Telegram: {e}")
+        return False
+
+def check_set_files():
+    """Validate all .set files"""
+    issues = []
+    warnings = []
+    
+    os.chdir(REPO_DIR)
+    
+    # Check confluence files
+    confluence_files = [f for f in os.listdir(".") if f.startswith("confluence-") and f.endswith(".set")]
+    grid_files = [f for f in os.listdir(".") if f.startswith("grid-") and f.endswith(".set")]
+    
+    print(f"Found {len(confluence_files)} confluence files, {len(grid_files)} grid files")
+    
+    # Check for invalid variable names
+    invalid_pattern = re.compile(r'InpMinConfluenceStrength|MinConfluenceStrength', re.IGNORECASE)
+    for f in confluence_files:
+        with open(f, 'r') as file:
+            content = file.read()
+            if invalid_pattern.search(content):
+                issues.append(f"❌ <b>Invalid variable</b> in {f}: InpMinConfluenceStrength (should be InpMinStrength)")
+    
+    # Check for missing critical parameters
+    critical_params_conf = ['InpMinConfluence', 'InpMinStrength', 'InpMagicNumber', 'InpCloseBeforeWeekend']
+    critical_params_grid = ['InpCloseBeforeWeekend', 'InpMaxDailyDrawdown']
+    
+    for f in confluence_files:
+        with open(f, 'r') as file:
+            content = file.read()
+            for param in critical_params_conf:
+                if param not in content:
+                    issues.append(f"❌ <b>Missing {param}</b> in {f}")
+    
+    for f in grid_files:
+        with open(f, 'r') as file:
+            content = file.read()
+            for param in critical_params_grid:
+                if param not in content:
+                    issues.append(f"❌ <b>Missing {param}</b> in {f}")
+    
+    # Check for high strength thresholds (warnings)
+    for f in confluence_files:
+        with open(f, 'r') as file:
+            content = file.read()
+            match = re.search(r'InpMinStrength=(\d+\.?\d*)', content)
+            if match:
+                strength = float(match.group(1))
+                if strength >= 0.80:
+                    warnings.append(f"⚠️ <b>High threshold</b> in {f}: {strength} (may block trades)")
+    
+    # Check debug mode
+    debug_off = 0
+    for f in confluence_files + grid_files:
+        with open(f, 'r') as file:
+            content = file.read()
+            if 'InpDebugMode=false' in content:
+                debug_off += 1
+    
+    if debug_off > 5:
+        warnings.append(f"⚠️ <b>Debug disabled</b> in {debug_off} files - you won't see trade decisions")
+    
+    return issues, warnings, len(confluence_files), len(grid_files)
+
+def main():
+    """Main function"""
+    print("=" * 50)
+    print("MQL Settings Validator")
+    print(f"Time: {datetime.now().isoformat()}")
+    print("=" * 50)
+    
+    issues, warnings, conf_count, grid_count = check_set_files()
+    
+    # Build report
+    report_lines = [
+        "<b>📊 MQL Settings Check</b>",
+        f"Confluence files: {conf_count}",
+        f"Grid files: {grid_count}",
+        ""
+    ]
+    
+    if issues:
+        report_lines.append("<b>❌ Issues Found:</b>")
+        report_lines.extend(issues[:10])  # Limit to 10 issues
+        if len(issues) > 10:
+            report_lines.append(f"... and {len(issues) - 10} more issues")
+        report_lines.append("")
+    
+    if warnings:
+        report_lines.append("<b>⚠️ Warnings:</b>")
+        report_lines.extend(warnings[:5])
+        report_lines.append("")
+    
+    if not issues and not warnings:
+        report_lines.append("✅ <b>All checks passed!</b>")
+        report_lines.append("No issues found.")
+    
+    report_lines.append(f"\n⏰ {datetime.now().strftime('%Y-%m-%d %H:%M')}")
+    
+    report = "\n".join(report_lines)
+    print("\n" + report.replace('<b>', '').replace('</b>', ''))
+    
+    # Send notification if issues found or if it's a scheduled check
+    if issues or warnings:
+        send_telegram(report)
+        return 1
+    else:
+        # Only send success message on first run of the day
+        if datetime.now().hour == 9:
+            send_telegram(report)
+        return 0
+
+if __name__ == "__main__":
+    sys.exit(main())