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Port 2822 (ka0wuc)

IANA assigns port 2822 to ka0wuc.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
ka0wuc TCP ka0wuc Kit Haskins -
ka0wuc UDP ka0wuc Kit Haskins -

Check what is listening on port 2822

Linux: is anything listening on TCP 2822?
sudo ss -tlnp 'sport = :2822'
Linux: UDP 2822
sudo ss -ulnp 'sport = :2822'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2822
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2822 '
Windows (Command Prompt)
netstat -ano | findstr :2822
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2822 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2822
From Windows
Test-NetConnection HOST -Port 2822
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2822

Block port 2822 in the firewall

ufw
sudo ufw deny 2822/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2822 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2822 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2822' -Direction Inbound -Protocol TCP -LocalPort 2822 -Action Block
ufw
sudo ufw deny 2822/udp
iptables
sudo iptables -A INPUT -p udp --dport 2822 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2822 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2822' -Direction Inbound -Protocol UDP -LocalPort 2822 -Action Block

Related ports

2820univision2821vrts-at-port2823cqg-netlan2824cqg-netlan-1

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