← Port Encyclopedia
389

LDAP

TCP/UDP
Directory Critical Risk
Lightweight Directory Access Protocol — Active Directory queries, LDAP injection

🔍 How to Scan Port 389

nmap -sV -p 389 target
nmap -sV -sC --script=banner -p 389 target
nc -zv target 389

🛡️ Security Considerations

  • Scan port 389 with nmap -sV to identify the exact service and version
  • If LDAP is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit ldap to find known exploits
  • Monitor traffic on port 389 with Wireshark or tcpdump for anomalies
  • Ensure the service is patched to the latest version to prevent known CVE exploitation

🔗 Related Directory Ports

Port 42
WINS
Port 636
LDAPS
Port 3268
LDAP-GC
Port 3269
LDAPS-GC

📍 Nearby Ports

Port 384
Port-384
Port 385
Port-385
Port 386
Port-386
Port 387
Port-387
Port 388
Port-388
Port 390
Port-390
Port 391
Port-391
Port 392
Port-392
Port 393
Port-393
Port 394
Port-394
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