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Port 6326 (dt-vra)

IANA assigns port 6326 to dt-vra: Double-Take Virtual Recovery Assistant.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
dt-vra TCP Double-Take Virtual Recovery Assistant Carbonite Inc -

Registry dates for this port: registered 2012-10-08, last modified 2019-08-23.

Check what is listening on port 6326

Linux: is anything listening on TCP 6326?
sudo ss -tlnp 'sport = :6326'
Linux / macOS: which process owns the port
sudo lsof -nP -i :6326
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':6326 '
Windows (Command Prompt)
netstat -ano | findstr :6326
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 6326 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 6326
From Windows
Test-NetConnection HOST -Port 6326

Block port 6326 in the firewall

ufw
sudo ufw deny 6326/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 6326 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 6326 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 6326' -Direction Inbound -Protocol TCP -LocalPort 6326 -Action Block

Related ports

6324hrd-ncs, hrd-ns-disc6325dt-mgmtsvc6343sflow6344streletz

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