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Port 5172 (pcoip-mgmt)

IANA assigns port 5172 to pcoip-mgmt: PC over IP Endpoint Management.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
pcoip-mgmt TCP PC over IP Endpoint Management HP Inc 2 -

Registry dates for this port: registered 2014-04-28, last modified 2026-03-10.

Check what is listening on port 5172

Linux: is anything listening on TCP 5172?
sudo ss -tlnp 'sport = :5172'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5172
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5172 '
Windows (Command Prompt)
netstat -ano | findstr :5172
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5172 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5172
From Windows
Test-NetConnection HOST -Port 5172

Block port 5172 in the firewall

ufw
sudo ufw deny 5172/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5172 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5172 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5172' -Direction Inbound -Protocol TCP -LocalPort 5172 -Action Block

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