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Port 4025 (partimage)

IANA assigns port 4025 to partimage: Partition Image Port.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
partimage TCP Partition Image Port Franck Ladurelle -
partimage UDP Partition Image Port Franck Ladurelle -

Check what is listening on port 4025

Linux: is anything listening on TCP 4025?
sudo ss -tlnp 'sport = :4025'
Linux: UDP 4025
sudo ss -ulnp 'sport = :4025'
Linux / macOS: which process owns the port
sudo lsof -nP -i :4025
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':4025 '
Windows (Command Prompt)
netstat -ano | findstr :4025
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 4025 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 4025
From Windows
Test-NetConnection HOST -Port 4025
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 4025

Block port 4025 in the firewall

ufw
sudo ufw deny 4025/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 4025 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 4025 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 4025' -Direction Inbound -Protocol TCP -LocalPort 4025 -Action Block
ufw
sudo ufw deny 4025/udp
iptables
sudo iptables -A INPUT -p udp --dport 4025 -j DROP
nftables
sudo nft add rule inet filter input udp dport 4025 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 4025' -Direction Inbound -Protocol UDP -LocalPort 4025 -Action Block

Related ports

4023esnm-zoning4024tnp1-port4026as-debug4027bxp

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