Port 333
texar · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | texar |
Frequently asked questions
What is port 333 used for?
Port 333 is registered with the IANA for texar (TCP/UDP). Description: Texar Security Port.
Is port 333 a well-known port?
Yes. Port 333 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 333 is open?
Locally on Linux with ss -tulpn | grep ':333\b', on Windows with netstat -ano | findstr :333. To test a remote host use Test-NetConnection <host> -Port 333 in PowerShell or nc -zv <host> 333 on Linux/macOS.
How do I open port 333 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 333/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=333/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 333" -Direction Inbound -Protocol TCP -LocalPort 333 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | texar | Texar Security Port |
| UDP | texar | Texar Security Port |