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Port 19220 (cora, cora-disc)

IANA assigns port 19220 to cora, cora-disc: Client Connection Management and Data Exchange Service.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
cora TCP Client Connection Management and Data Exchange Service Softvise GmbH -
cora-disc UDP Discovery for Client Connection Management and Data Exchange Service Softvise GmbH -

Registry dates for this port: registered 2016-11-10.

Check what is listening on port 19220

Linux: is anything listening on TCP 19220?
sudo ss -tlnp 'sport = :19220'
Linux: UDP 19220
sudo ss -ulnp 'sport = :19220'
Linux / macOS: which process owns the port
sudo lsof -nP -i :19220
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':19220 '
Windows (Command Prompt)
netstat -ano | findstr :19220
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 19220 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 19220
From Windows
Test-NetConnection HOST -Port 19220
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 19220

Block port 19220 in the firewall

ufw
sudo ufw deny 19220/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 19220 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 19220 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 19220' -Direction Inbound -Protocol TCP -LocalPort 19220 -Action Block
ufw
sudo ufw deny 19220/udp
iptables
sudo iptables -A INPUT -p udp --dport 19220 -j DROP
nftables
sudo nft add rule inet filter input udp dport 19220 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 19220' -Direction Inbound -Protocol UDP -LocalPort 19220 -Action Block

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