Port 1219 (aeroflight-ret)

IANA assigns port 1219 to aeroflight-ret: AeroFlight-Ret.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference

aeroflight-ret TCP AeroFlight-Ret Eric Johnson -

aeroflight-ret UDP AeroFlight-Ret Eric Johnson -

Linux: is anything listening on TCP 1219?

sudo ss -tlnp 'sport = :1219'

Linux: UDP 1219

sudo ss -ulnp 'sport = :1219'

Linux / macOS: which process owns the port

sudo lsof -nP -i :1219

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':1219 '

Windows (Command Prompt)

netstat -ano | findstr :1219

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1219 -State Listen | Select LocalAddress,OwningProcess

From another machine

nc -vz -w 5 HOST 1219

From Windows

Test-NetConnection HOST -Port 1219

UDP probe (no reply does not prove it is closed)

nc -vzu -w 5 HOST 1219

ufw

sudo ufw deny 1219/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 1219 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 1219 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 1219' -Direction Inbound -Protocol TCP -LocalPort 1219 -Action Block

ufw

sudo ufw deny 1219/udp

iptables

sudo iptables -A INPUT -p udp --dport 1219 -j DROP

nftables

sudo nft add rule inet filter input udp dport 1219 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block UDP 1219' -Direction Inbound -Protocol UDP -LocalPort 1219 -Action Block

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