← Port Encyclopedia
636

LDAPS

TCP
Directory High Risk
LDAP over SSL — encrypted directory queries, certificate validation issues

🔍 How to Scan Port 636

nmap -sV -p 636 target
nmap -sV -sC --script=banner -p 636 target
nc -zv target 636

🛡️ Security Considerations

  • Scan port 636 with nmap -sV to identify the exact service and version
  • If LDAPS is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit ldaps to find known exploits
  • Monitor traffic on port 636 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 389
LDAP
Port 3268
LDAP-GC
Port 3269
LDAPS-GC

📍 Nearby Ports

Port 631
IPP
Port 632
Port-632
Port 633
Port-633
Port 634
Port-634
Port 635
Port-635
Port 637
Port-637
Port 638
Port-638
Port 639
Port-639
Port 640
Port-640
Port 641
Port-641
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