Port 95
supdup · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | supdup |
Frequently asked questions
What is port 95 used for?
Port 95 is registered with the IANA for supdup (TCP/UDP). Description: SUPDUP.
Is port 95 a well-known port?
Yes. Port 95 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 95 is open?
Locally on Linux with ss -tulpn | grep ':95\b', on Windows with netstat -ano | findstr :95. To test a remote host use Test-NetConnection <host> -Port 95 in PowerShell or nc -zv <host> 95 on Linux/macOS.
How do I open port 95 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 95/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=95/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 95" -Direction Inbound -Protocol TCP -LocalPort 95 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | supdup | SUPDUP |
| UDP | supdup | SUPDUP |