Nem, de az a port nyitás szempontjából azt hiszem, hogy független.
A duckdns csinálja az IP cimem kivülről való elérhetőségét.
A "https://portchecker.co/show-my-ip" lekéri az IP cimet, az stimmel, a következőkben pedig kivülről ellenőrzi a portokat "https://portchecker.co/scanning-result" de minden port zárva.
| Service | Port | Status |
| FTP Data Transfer | 20 | closed |
| FTP Control | 21 | closed |
| SSH (Secure Shell) | 22 | closed |
| Telnet, a Remote Login Service | 23 | closed |
| SMTP (Simple Mail Transfer Protocol) | 25 | closed |
| DNS (Domain Name System) | 53 | closed |
| HTTP (Hypertext Transfer Protocol) | 80 | closed |
| POP3 (Post Office Protocol 3) | 110 | closed |
| SFTP (Secure File Transfer Protocol) | 115 | closed |
| NTP (Network Time Protocol) | 123 | closed |
| IMAP (Internet Message Access Protocol) | 143 | closed |
| SNMP (Simple Network Management Protocol | 161 | closed |
| IRC (Internet Relay Chat) | 194 | closed |
| HTTPS (Hypertext Transfer Protocol Secure) | 443 | closed |
| Microsoft-DS SMB File Sharing | 445 | closed |
| SMTPS (Simple Mail Transfer Protocol over SSL) | 465 | closed |
| RTSP (Real Time Stream Control Protocol) | 554 | closed |
| RSYNC (RSYNC File Transfer Services) | 873 | closed |
| IMAPS (Internet Message Access Protocol over SSL) | 993 | closed |
| POP3S (Post Office Protocol 3 over SSL) | 995 | closed |
| RDP (Remote Desktop Protocol) | 3389 | closed |