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Port 2824 (cqg-netlan-1)

IANA assigns port 2824 to cqg-netlan-1: CQG Net/LAN 1.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
cqg-netlan-1 TCP CQG Net/LAN 1 Jeff Wood -
cqg-netlan-1 UDP CQG Net/Lan 1 Jeff Wood -

Check what is listening on port 2824

Linux: is anything listening on TCP 2824?
sudo ss -tlnp 'sport = :2824'
Linux: UDP 2824
sudo ss -ulnp 'sport = :2824'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2824
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2824 '
Windows (Command Prompt)
netstat -ano | findstr :2824
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2824 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2824
From Windows
Test-NetConnection HOST -Port 2824
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2824

Block port 2824 in the firewall

ufw
sudo ufw deny 2824/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2824 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2824 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2824' -Direction Inbound -Protocol TCP -LocalPort 2824 -Action Block
ufw
sudo ufw deny 2824/udp
iptables
sudo iptables -A INPUT -p udp --dport 2824 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2824 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2824' -Direction Inbound -Protocol UDP -LocalPort 2824 -Action Block

Related ports

2822ka0wuc2823cqg-netlan2826slc-systemlog2827slc-ctrlrloops

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