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Port 1319 (amx-icsp)

IANA assigns port 1319 to amx-icsp: AMX-ICSP.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
amx-icsp TCP AMX-ICSP Jeff Burch -
amx-icsp UDP AMX-ICSP Jeff Burch -

Check what is listening on port 1319

Linux: is anything listening on TCP 1319?
sudo ss -tlnp 'sport = :1319'
Linux: UDP 1319
sudo ss -ulnp 'sport = :1319'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1319
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1319 '
Windows (Command Prompt)
netstat -ano | findstr :1319
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1319 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1319
From Windows
Test-NetConnection HOST -Port 1319
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1319

Block port 1319 in the firewall

ufw
sudo ufw deny 1319/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1319 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1319 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1319' -Direction Inbound -Protocol TCP -LocalPort 1319 -Action Block
ufw
sudo ufw deny 1319/udp
iptables
sudo iptables -A INPUT -p udp --dport 1319 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1319 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1319' -Direction Inbound -Protocol UDP -LocalPort 1319 -Action Block

Related ports

1317vrts-ipcserver1318krb5gatekeeper1320amx-axbnet1321pip

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