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Port 2988 (hippad)

IANA assigns port 2988 to hippad: HIPPA Reporting Protocol.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
hippad TCP HIPPA Reporting Protocol William Randolph Roy -
hippad UDP HIPPA Reporting Protocol William Randolph Roy -

Check what is listening on port 2988

Linux: is anything listening on TCP 2988?
sudo ss -tlnp 'sport = :2988'
Linux: UDP 2988
sudo ss -ulnp 'sport = :2988'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2988
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2988 '
Windows (Command Prompt)
netstat -ano | findstr :2988
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2988 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2988
From Windows
Test-NetConnection HOST -Port 2988
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2988

Block port 2988 in the firewall

ufw
sudo ufw deny 2988/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2988 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2988 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2988' -Direction Inbound -Protocol TCP -LocalPort 2988 -Action Block
ufw
sudo ufw deny 2988/udp
iptables
sudo iptables -A INPUT -p udp --dport 2988 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2988 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2988' -Direction Inbound -Protocol UDP -LocalPort 2988 -Action Block

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