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Port 31765 (gamesmith-port)

IANA assigns port 31765 to gamesmith-port: GameSmith Port.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
gamesmith-port TCP GameSmith Port Randy Thompson -
gamesmith-port UDP GameSmith Port Randy Thompson -

Registry dates for this port: registered 2002-08.

Check what is listening on port 31765

Linux: is anything listening on TCP 31765?
sudo ss -tlnp 'sport = :31765'
Linux: UDP 31765
sudo ss -ulnp 'sport = :31765'
Linux / macOS: which process owns the port
sudo lsof -nP -i :31765
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':31765 '
Windows (Command Prompt)
netstat -ano | findstr :31765
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 31765 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 31765
From Windows
Test-NetConnection HOST -Port 31765
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 31765

Block port 31765 in the firewall

ufw
sudo ufw deny 31765/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 31765 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 31765 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 31765' -Direction Inbound -Protocol TCP -LocalPort 31765 -Action Block
ufw
sudo ufw deny 31765/udp
iptables
sudo iptables -A INPUT -p udp --dport 31765 -j DROP
nftables
sudo nft add rule inet filter input udp dport 31765 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 31765' -Direction Inbound -Protocol UDP -LocalPort 31765 -Action Block

Related ports

31620lm-mon31685dsx-monitor, dsx_monitor31948iceedcp-tx, iceedcp_tx31949iceedcp-rx, iceedcp_rx

All port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.