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Port 3063 (ncadg-ip-udp)

IANA assigns port 3063 to ncadg-ip-udp.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
ncadg-ip-udp TCP ncadg-ip-udp Gabi Kalmar -
ncadg-ip-udp UDP ncadg-ip-udp Gabi Kalmar -

Check what is listening on port 3063

Linux: is anything listening on TCP 3063?
sudo ss -tlnp 'sport = :3063'
Linux: UDP 3063
sudo ss -ulnp 'sport = :3063'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3063
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3063 '
Windows (Command Prompt)
netstat -ano | findstr :3063
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3063 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3063
From Windows
Test-NetConnection HOST -Port 3063
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3063

Block port 3063 in the firewall

ufw
sudo ufw deny 3063/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3063 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3063 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3063' -Direction Inbound -Protocol TCP -LocalPort 3063 -Action Block
ufw
sudo ufw deny 3063/udp
iptables
sudo iptables -A INPUT -p udp --dport 3063 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3063 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3063' -Direction Inbound -Protocol UDP -LocalPort 3063 -Action Block

Related ports

3061cautcpd3062ncacn-ip-tcp3064rprt3065slinterbase

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