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Port 1273 (emc-gateway)

IANA assigns port 1273 to emc-gateway: EMC-Gateway.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
emc-gateway TCP EMC-Gateway Rene Fontaine -
emc-gateway UDP EMC-Gateway Rene Fontaine -

Check what is listening on port 1273

Linux: is anything listening on TCP 1273?
sudo ss -tlnp 'sport = :1273'
Linux: UDP 1273
sudo ss -ulnp 'sport = :1273'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1273
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1273 '
Windows (Command Prompt)
netstat -ano | findstr :1273
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1273 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1273
From Windows
Test-NetConnection HOST -Port 1273
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1273

Block port 1273 in the firewall

ufw
sudo ufw deny 1273/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1273 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1273 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1273' -Direction Inbound -Protocol TCP -LocalPort 1273 -Action Block
ufw
sudo ufw deny 1273/udp
iptables
sudo iptables -A INPUT -p udp --dport 1273 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1273 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1273' -Direction Inbound -Protocol UDP -LocalPort 1273 -Action Block

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