Port 6242
jeol-nsddp-2 and jeol-nsdtp-2 · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | jeol-nsddp-2 and jeol-nsdtp-2 |
| Registered | 2008-04-17 |
Frequently asked questions
What is port 6242 used for?
Port 6242 is registered with the IANA for jeol-nsddp-2 and jeol-nsdtp-2 (TCP/UDP). Description: JEOL Network Services Data Transport Protocol 2; JEOL Network Services Dynamic Discovery Protocol 2.
Is port 6242 a well-known port?
No. Port 6242 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 6242 is open?
Locally on Linux with ss -tulpn | grep ':6242\b', on Windows with netstat -ano | findstr :6242. To test a remote host use Test-NetConnection <host> -Port 6242 in PowerShell or nc -zv <host> 6242 on Linux/macOS.
How do I open port 6242 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 6242/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=6242/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 6242" -Direction Inbound -Protocol TCP -LocalPort 6242 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | jeol-nsdtp-2 | JEOL Network Services Data Transport Protocol 2 |
| UDP | jeol-nsddp-2 | JEOL Network Services Dynamic Discovery Protocol 2 |