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Port 48556 (com-bardac-dw)

IANA assigns port 48556 to com-bardac-dw.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
com-bardac-dw TCP com-bardac-dw Nicholas J Howes -
com-bardac-dw UDP com-bardac-dw Nicholas J Howes -

Check what is listening on port 48556

Linux: is anything listening on TCP 48556?
sudo ss -tlnp 'sport = :48556'
Linux: UDP 48556
sudo ss -ulnp 'sport = :48556'
Linux / macOS: which process owns the port
sudo lsof -nP -i :48556
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':48556 '
Windows (Command Prompt)
netstat -ano | findstr :48556
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 48556 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 48556
From Windows
Test-NetConnection HOST -Port 48556
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 48556

Block port 48556 in the firewall

ufw
sudo ufw deny 48556/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 48556 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 48556 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 48556' -Direction Inbound -Protocol TCP -LocalPort 48556 -Action Block
ufw
sudo ufw deny 48556/udp
iptables
sudo iptables -A INPUT -p udp --dport 48556 -j DROP
nftables
sudo nft add rule inet filter input udp dport 48556 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 48556' -Direction Inbound -Protocol UDP -LocalPort 48556 -Action Block

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