Port 1001
webpush · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | webpush |
| Reference | RFC 8030 |
| Registered | 2016-11-01 |
Frequently asked questions
What is port 1001 used for?
Port 1001 is registered with the IANA for webpush (TCP/UDP). Description: HTTP Web Push; Reserved.
Is port 1001 a well-known port?
Yes. Port 1001 is in the range 0–1023 (system or well-known ports). On Linux and macOS only privileged processes may bind to these ports.
How do I check whether port 1001 is open?
Locally on Linux with ss -tulpn | grep ':1001\b', on Windows with netstat -ano | findstr :1001. To test a remote host use Test-NetConnection <host> -Port 1001 in PowerShell or nc -zv <host> 1001 on Linux/macOS.
How do I open port 1001 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 1001/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=1001/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 1001" -Direction Inbound -Protocol TCP -LocalPort 1001 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | webpush | HTTP Web Push |
| UDP | – | Reserved |