← Port Encyclopedia
49
TACACS
TCP/UDP
Authentication
High Risk
TACACS+ — network device authentication, authorization, and accounting
🔍 How to Scan Port 49
nmap -sV -p 49 target
nmap -sV -sC --script=banner -p 49 target
nc -zv target 49
🛡️ Security Considerations
- Scan port 49 with
nmap -sVto identify the exact service and version - If TACACS is not needed, close or firewall this port immediately
- Check for default credentials if a management interface runs on this port
- Use
searchsploit tacacsto find known exploits - Monitor traffic on port 49 with Wireshark or tcpdump for anomalies
- Ensure the service is patched to the latest version to prevent known CVE exploitation