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Port 3044 (epp)

IANA assigns port 3044 to epp: EndPoint Protocol.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
epp TCP EndPoint Protocol Stephen Cipolli -
epp UDP EndPoint Protocol Stephen Cipolli -

Check what is listening on port 3044

Linux: is anything listening on TCP 3044?
sudo ss -tlnp 'sport = :3044'
Linux: UDP 3044
sudo ss -ulnp 'sport = :3044'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3044
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3044 '
Windows (Command Prompt)
netstat -ano | findstr :3044
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3044 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3044
From Windows
Test-NetConnection HOST -Port 3044
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3044

Block port 3044 in the firewall

ufw
sudo ufw deny 3044/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3044 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3044 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3044' -Direction Inbound -Protocol TCP -LocalPort 3044 -Action Block
ufw
sudo ufw deny 3044/udp
iptables
sudo iptables -A INPUT -p udp --dport 3044 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3044 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3044' -Direction Inbound -Protocol UDP -LocalPort 3044 -Action Block

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