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Port 4095 (xtgui)

IANA assigns port 4095 to xtgui: xtgui information service.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
xtgui TCP xtgui information service Jim Robanske -
xtgui UDP xtgui information service Jim Robanske -

Registry dates for this port: registered 2006-05.

Check what is listening on port 4095

Linux: is anything listening on TCP 4095?
sudo ss -tlnp 'sport = :4095'
Linux: UDP 4095
sudo ss -ulnp 'sport = :4095'
Linux / macOS: which process owns the port
sudo lsof -nP -i :4095
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':4095 '
Windows (Command Prompt)
netstat -ano | findstr :4095
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 4095 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 4095
From Windows
Test-NetConnection HOST -Port 4095
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 4095

Block port 4095 in the firewall

ufw
sudo ufw deny 4095/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 4095 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 4095 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 4095' -Direction Inbound -Protocol TCP -LocalPort 4095 -Action Block
ufw
sudo ufw deny 4095/udp
iptables
sudo iptables -A INPUT -p udp --dport 4095 -j DROP
nftables
sudo nft add rule inet filter input udp dport 4095 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 4095' -Direction Inbound -Protocol UDP -LocalPort 4095 -Action Block

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