{
  "project": "Server404",
  "api_version": "2.0",
  "node": "web01",
  "hostname": "web01",
  "role": "public web server",
  "generated_at": "2026-06-13 21:16:31",
  "source": "live",
  "duration_ms": 707,
  "overall": "ok",
  "score": {
    "value": 100,
    "checks_total": 17,
    "checks_passed": 17,
    "checks_failed": 0
  },
  "system": {
    "os": "Ubuntu 24.04.4 LTS",
    "kernel": "6.8.0-117-generic",
    "uptime": "up 2 weeks, 4 days, 3 hours, 0 minutes",
    "cpu_cores": 1,
    "load_average": {
      "1m": 0.0,
      "5m": 0.0,
      "15m": 0.0
    },
    "memory": {
      "memory_used_percent": 13.1,
      "swap_used_percent": 0.0,
      "memory_total_mb": 3916,
      "memory_used_mb": 513,
      "memory_available_mb": 3403,
      "swap_total_mb": 1023,
      "swap_used_mb": 0
    },
    "failed_units": {
      "count": 0,
      "units": []
    },
    "disk_root": {
      "size": "9.8G",
      "used": "4.2G",
      "available": "5.4G",
      "used_percent": "44%",
      "mount": "/"
    },
    "inode_root": {
      "inodes": "655360",
      "used": "140706",
      "available": "514654",
      "used_percent": "22%",
      "mount": "/"
    },
    "webroot": {
      "path": "/var/www/server404/current",
      "exists": true,
      "bytes": 137765,
      "human": "134.5 KB"
    },
    "backup_active": {
      "path": "/var/backups/server404/active",
      "exists": false,
      "bytes": 0,
      "human": "unavailable"
    },
    "reports": {
      "path": "/opt/server404-admin/reports",
      "exists": true,
      "bytes": 121071,
      "human": "118.2 KB"
    }
  },
  "services": {
    "nginx": {
      "active": "active",
      "substate": "running",
      "enabled": "enabled",
      "since": "Tue 2026-05-26 18:15:58 MSK"
    },
    "ssh": {
      "active": "active",
      "substate": "running",
      "enabled": "disabled",
      "since": "Tue 2026-05-26 18:16:26 MSK"
    },
    "fail2ban": {
      "active": "active",
      "substate": "running",
      "enabled": "enabled",
      "since": "Tue 2026-05-26 18:15:57 MSK"
    },
    "zabbix-agent2": {
      "active": "active",
      "substate": "running",
      "enabled": "enabled",
      "since": "Tue 2026-06-02 21:35:08 MSK"
    }
  },
  "network": {
    "listening_ports": [
      22,
      53,
      80,
      323,
      443,
      4040,
      7681,
      10050
    ],
    "expected_public_ports": [
      22,
      80,
      443
    ]
  },
  "tls": {
    "server404.space": {
      "host": "server404.space",
      "issuer": "E8",
      "subject": "server404.space",
      "valid_until": "2026-08-24 03:17:23 UTC",
      "days_left": 71
    },
    "www.server404.space": {
      "host": "www.server404.space",
      "issuer": "E8",
      "subject": "server404.space",
      "valid_until": "2026-08-24 03:17:23 UTC",
      "days_left": 71
    }
  },
  "endpoints": {
    "main": {
      "url": "https://server404.space/",
      "code": "200"
    },
    "architecture": {
      "url": "https://server404.space/architecture",
      "code": "200"
    },
    "security": {
      "url": "https://server404.space/security",
      "code": "200"
    },
    "monitoring": {
      "url": "https://server404.space/monitoring",
      "code": "200"
    },
    "backup": {
      "url": "https://server404.space/backup",
      "code": "200"
    },
    "links": {
      "url": "https://server404.space/links",
      "code": "200"
    },
    "health": {
      "url": "https://server404.space/health",
      "body": "ok"
    }
  },
  "security_checks": {
    ".env": "403",
    ".git_config": "403",
    "backup_sql": "403",
    ".DS_Store": "403",
    ".ssh": "403"
  },
  "backup": {
    "active_dir": "/var/backups/server404/active",
    "latest": {
      "path": "/var/backups/server404/active",
      "exists": false
    },
    "principle": "backup is accepted only with SHA-256 and restore-proof"
  },
  "versions": {
    "nginx": "nginx version: nginx/1.24.0 (Ubuntu)",
    "python": "Python 3.12.3",
    "zabbix_agent2": "zabbix_agent2 (Zabbix) 7.0.26"
  },
  "checks": [
    {
      "name": "service:nginx",
      "passed": true
    },
    {
      "name": "service:ssh",
      "passed": true
    },
    {
      "name": "service:fail2ban",
      "passed": true
    },
    {
      "name": "service:zabbix-agent2",
      "passed": true
    },
    {
      "name": "failed_units",
      "passed": true
    },
    {
      "name": "health_ok",
      "passed": true
    },
    {
      "name": "endpoint:main",
      "passed": true
    },
    {
      "name": "endpoint:architecture",
      "passed": true
    },
    {
      "name": "endpoint:security",
      "passed": true
    },
    {
      "name": "endpoint:monitoring",
      "passed": true
    },
    {
      "name": "endpoint:backup",
      "passed": true
    },
    {
      "name": "endpoint:links",
      "passed": true
    },
    {
      "name": "forbidden:.env",
      "passed": true
    },
    {
      "name": "forbidden:.git_config",
      "passed": true
    },
    {
      "name": "forbidden:backup_sql",
      "passed": true
    },
    {
      "name": "forbidden:.DS_Store",
      "passed": true
    },
    {
      "name": "forbidden:.ssh",
      "passed": true
    }
  ]
}