HTTPfy

Port 1716 (xmsg)

IANA assigns port 1716 to xmsg.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
xmsg TCP xmsg Mark E Fogle -
xmsg UDP xmsg Mark E Fogle -

Check what is listening on port 1716

Linux: is anything listening on TCP 1716?
sudo ss -tlnp 'sport = :1716'
Linux: UDP 1716
sudo ss -ulnp 'sport = :1716'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1716
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1716 '
Windows (Command Prompt)
netstat -ano | findstr :1716
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1716 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1716
From Windows
Test-NetConnection HOST -Port 1716
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1716

Block port 1716 in the firewall

ufw
sudo ufw deny 1716/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1716 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1716 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1716' -Direction Inbound -Protocol TCP -LocalPort 1716 -Action Block
ufw
sudo ufw deny 1716/udp
iptables
sudo iptables -A INPUT -p udp --dport 1716 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1716 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1716' -Direction Inbound -Protocol UDP -LocalPort 1716 -Action Block

Related ports

1714sesi-lm1715houdini-lm1717fj-hdnet1718h323gatedisc

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