← 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 -sVto 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 ldapsto 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