Port 4842

gw-asv · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicegw-asv
Registered2006-09
Modified2017-05-23

Frequently asked questions

What is port 4842 used for?

Port 4842 is registered with the IANA for gw-asv (TCP/UDP). Description: nCode ICE-flow Library AppServer.

Is port 4842 a well-known port?

No. Port 4842 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 4842 is open?

Locally on Linux with ss -tulpn | grep ':4842\b', on Windows with netstat -ano | findstr :4842. To test a remote host use Test-NetConnection <host> -Port 4842 in PowerShell or nc -zv <host> 4842 on Linux/macOS.

How do I open port 4842 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 4842/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=4842/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 4842" -Direction Inbound -Protocol TCP -LocalPort 4842 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPgw-asvnCode ICE-flow Library AppServer
UDPgw-asvnCode ICE-flow Library AppServer

Nearby entries