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Port 7720 (medimageportal)

IANA assigns port 7720 to medimageportal: MedImage Portal.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
medimageportal TCP MedImage Portal Robert Helton -
medimageportal UDP MedImage Portal Robert Helton -

Registry dates for this port: registered 2003-10.

Check what is listening on port 7720

Linux: is anything listening on TCP 7720?
sudo ss -tlnp 'sport = :7720'
Linux: UDP 7720
sudo ss -ulnp 'sport = :7720'
Linux / macOS: which process owns the port
sudo lsof -nP -i :7720
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':7720 '
Windows (Command Prompt)
netstat -ano | findstr :7720
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 7720 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 7720
From Windows
Test-NetConnection HOST -Port 7720
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 7720

Block port 7720 in the firewall

ufw
sudo ufw deny 7720/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 7720 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 7720 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 7720' -Direction Inbound -Protocol TCP -LocalPort 7720 -Action Block
ufw
sudo ufw deny 7720/udp
iptables
sudo iptables -A INPUT -p udp --dport 7720 -j DROP
nftables
sudo nft add rule inet filter input udp dport 7720 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 7720' -Direction Inbound -Protocol UDP -LocalPort 7720 -Action Block

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