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Port 6325 (dt-mgmtsvc)

IANA assigns port 6325 to dt-mgmtsvc: Double-Take Management Service.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
dt-mgmtsvc TCP Double-Take Management Service Carbonite Inc -

Registry dates for this port: registered 2012-06-06, last modified 2019-08-23.

Check what is listening on port 6325

Linux: is anything listening on TCP 6325?
sudo ss -tlnp 'sport = :6325'
Linux / macOS: which process owns the port
sudo lsof -nP -i :6325
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':6325 '
Windows (Command Prompt)
netstat -ano | findstr :6325
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 6325 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 6325
From Windows
Test-NetConnection HOST -Port 6325

Block port 6325 in the firewall

ufw
sudo ufw deny 6325/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 6325 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 6325 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 6325' -Direction Inbound -Protocol TCP -LocalPort 6325 -Action Block

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