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Port 4344 (vinainstall)

IANA assigns port 4344 to vinainstall: VinaInstall.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
vinainstall TCP VinaInstall Jay Slupesky -
vinainstall UDP VinaInstall Jay Slupesky -

Check what is listening on port 4344

Linux: is anything listening on TCP 4344?
sudo ss -tlnp 'sport = :4344'
Linux: UDP 4344
sudo ss -ulnp 'sport = :4344'
Linux / macOS: which process owns the port
sudo lsof -nP -i :4344
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':4344 '
Windows (Command Prompt)
netstat -ano | findstr :4344
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 4344 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 4344
From Windows
Test-NetConnection HOST -Port 4344
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 4344

Block port 4344 in the firewall

ufw
sudo ufw deny 4344/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 4344 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 4344 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 4344' -Direction Inbound -Protocol TCP -LocalPort 4344 -Action Block
ufw
sudo ufw deny 4344/udp
iptables
sudo iptables -A INPUT -p udp --dport 4344 -j DROP
nftables
sudo nft add rule inet filter input udp dport 4344 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 4344' -Direction Inbound -Protocol UDP -LocalPort 4344 -Action Block

Related ports

4342lisp-control4343unicall4345m4-network-as4346elanlm

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