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Port 3041 (di-traceware)

IANA assigns port 3041 to di-traceware.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
di-traceware TCP di-traceware Carlos Hung -
di-traceware UDP di-traceware Carlos Hung -

Check what is listening on port 3041

Linux: is anything listening on TCP 3041?
sudo ss -tlnp 'sport = :3041'
Linux: UDP 3041
sudo ss -ulnp 'sport = :3041'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3041
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3041 '
Windows (Command Prompt)
netstat -ano | findstr :3041
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3041 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3041
From Windows
Test-NetConnection HOST -Port 3041
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3041

Block port 3041 in the firewall

ufw
sudo ufw deny 3041/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3041 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3041 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3041' -Direction Inbound -Protocol TCP -LocalPort 3041 -Action Block
ufw
sudo ufw deny 3041/udp
iptables
sudo iptables -A INPUT -p udp --dport 3041 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3041 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3041' -Direction Inbound -Protocol UDP -LocalPort 3041 -Action Block

Related ports

3039cogitate3040tomato-springs3042journee3043brp

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