Port 7997
pushns · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | pushns |
| Registered | 2011-01-31 |
Frequently asked questions
What is port 7997 used for?
Port 7997 is registered with the IANA for pushns (TCP/UDP). Description: PUSH Notification Service; Reserved.
Is port 7997 a well-known port?
No. Port 7997 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 7997 is open?
Locally on Linux with ss -tulpn | grep ':7997\b', on Windows with netstat -ano | findstr :7997. To test a remote host use Test-NetConnection <host> -Port 7997 in PowerShell or nc -zv <host> 7997 on Linux/macOS.
How do I open port 7997 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 7997/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=7997/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 7997" -Direction Inbound -Protocol TCP -LocalPort 7997 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | pushns | PUSH Notification Service |
| UDP | – | Reserved |