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Port 3054 (amt-cnf-prot)

IANA assigns port 3054 to amt-cnf-prot: AMT CNF PROT.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
amt-cnf-prot TCP AMT CNF PROT Marco Marcucci -
amt-cnf-prot UDP AMT CNF PROT Marco Marcucci -

Check what is listening on port 3054

Linux: is anything listening on TCP 3054?
sudo ss -tlnp 'sport = :3054'
Linux: UDP 3054
sudo ss -ulnp 'sport = :3054'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3054
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3054 '
Windows (Command Prompt)
netstat -ano | findstr :3054
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3054 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3054
From Windows
Test-NetConnection HOST -Port 3054
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3054

Block port 3054 in the firewall

ufw
sudo ufw deny 3054/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3054 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3054 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3054' -Direction Inbound -Protocol TCP -LocalPort 3054 -Action Block
ufw
sudo ufw deny 3054/udp
iptables
sudo iptables -A INPUT -p udp --dport 3054 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3054 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3054' -Direction Inbound -Protocol UDP -LocalPort 3054 -Action Block

Related ports

3052apc-30523053dsom-server3055policyserver3056cdl-server

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