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Port 5082 (qcp)

IANA assigns port 5082 to qcp: Qpur Communication Protocol.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
qcp TCP Qpur Communication Protocol Joachim Kluemper -
qcp UDP Qpur Communication Protocol Joachim Kluemper -

Registry dates for this port: registered 2008-03-19.

Check what is listening on port 5082

Linux: is anything listening on TCP 5082?
sudo ss -tlnp 'sport = :5082'
Linux: UDP 5082
sudo ss -ulnp 'sport = :5082'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5082
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5082 '
Windows (Command Prompt)
netstat -ano | findstr :5082
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5082 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5082
From Windows
Test-NetConnection HOST -Port 5082
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 5082

Block port 5082 in the firewall

ufw
sudo ufw deny 5082/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5082 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5082 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5082' -Direction Inbound -Protocol TCP -LocalPort 5082 -Action Block
ufw
sudo ufw deny 5082/udp
iptables
sudo iptables -A INPUT -p udp --dport 5082 -j DROP
nftables
sudo nft add rule inet filter input udp dport 5082 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 5082' -Direction Inbound -Protocol UDP -LocalPort 5082 -Action Block

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Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.