Port 3838

sos · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicesos
Registered2003-11

Frequently asked questions

What is port 3838 used for?

Port 3838 is registered with the IANA for sos (TCP/UDP). Description: Scito Object Server.

Is port 3838 a well-known port?

No. Port 3838 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 3838 is open?

Locally on Linux with ss -tulpn | grep ':3838\b', on Windows with netstat -ano | findstr :3838. To test a remote host use Test-NetConnection <host> -Port 3838 in PowerShell or nc -zv <host> 3838 on Linux/macOS.

How do I open port 3838 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 3838/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=3838/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 3838" -Direction Inbound -Protocol TCP -LocalPort 3838 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPsosScito Object Server
UDPsosScito Object Server

Nearby entries