← Port Encyclopedia
563

NNTPS

TCP
Messaging Low Risk
NNTP over SSL — encrypted Usenet access

🔍 How to Scan Port 563

nmap -sV -p 563 target
nmap -sV -sC --script=banner -p 563 target
nc -zv target 563

🛡️ Security Considerations

  • Scan port 563 with nmap -sV to identify the exact service and version
  • If NNTPS is not needed, close or firewall this port immediately
  • Check for default credentials if a management interface runs on this port
  • Use searchsploit nntps to find known exploits
  • Monitor traffic on port 563 with Wireshark or tcpdump for anomalies
  • Ensure the service is patched to the latest version to prevent known CVE exploitation

🔗 Related Messaging Ports

Port 119
NNTP
Port 194
IRC
Port 444
SNPP
Port 1337
WASTE
Port 4000
ICQ
Port 5050
Yahoo-IM
Port 5190
AIM
Port 5222
XMPP
Port 5223
XMPP-SSL
Port 5269
XMPP-Server
Port 6660
IRC-Alt
Port 6661
IRC

📍 Nearby Ports

Port 558
Port-558
Port 559
Port-559
Port 560
Port-560
Port 561
Port-561
Port 562
Port-562
Port 564
Port-564
Port 565
Port-565
Port 566
Port-566
Port 567
Port-567
Port 568
Port-568
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