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Port 3140 (ariliamulti)

IANA assigns port 3140 to ariliamulti: Arilia Multiplexor.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
ariliamulti TCP Arilia Multiplexor Stephane Bourque 2 -
ariliamulti UDP Arilia Multiplexor Stephane Bourque 2 -

Check what is listening on port 3140

Linux: is anything listening on TCP 3140?
sudo ss -tlnp 'sport = :3140'
Linux: UDP 3140
sudo ss -ulnp 'sport = :3140'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3140
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3140 '
Windows (Command Prompt)
netstat -ano | findstr :3140
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3140 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3140
From Windows
Test-NetConnection HOST -Port 3140
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3140

Block port 3140 in the firewall

ufw
sudo ufw deny 3140/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3140 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3140 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3140' -Direction Inbound -Protocol TCP -LocalPort 3140 -Action Block
ufw
sudo ufw deny 3140/udp
iptables
sudo iptables -A INPUT -p udp --dport 3140 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3140 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3140' -Direction Inbound -Protocol UDP -LocalPort 3140 -Action Block

Related ports

3138rtnt-23139incognitorv3141vmodem3142rdc-wh-eos

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