TechCorp Network Topology
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External Network: 192.168.3.0/24
  - Router: 192.168.3.1
  - Attacker: 192.168.3.5

DMZ Network: 192.168.10.0/24
  - Router: 192.168.10.1
  - Web Server: 192.168.10.10 (Apache/PHP)
  - FTP Server: 192.168.10.20 (vsftpd)
  - Mail Server: 192.168.10.25 (Postfix)
  - DNS Server: 192.168.10.53 (BIND9)

Internal Network: 192.168.20.0/24
  - Router: 192.168.20.1
  - LDAP/AD: 192.168.20.30 (OpenLDAP)
  - Database: 192.168.20.40 (MySQL 8.0)
  - File Server: 192.168.20.50 (SSH/NFS)
  - Log Server: 192.168.20.60 (Syslog-ng)

Firewall Rules:
  - External -> DMZ: HTTP, HTTPS, FTP, SMTP, DNS allowed
  - External -> Internal: BLOCKED
  - DMZ -> Internal: Database, LDAP, File Server allowed
  - Internal -> DMZ: All allowed
