Port 38001 (ivs-insertion)

IANA assigns port 38001 to ivs-insertion: InfoVista Server Insertion.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference

ivs-insertion TCP InfoVista Server Insertion InfoVista -

Registry dates for this port: registered 2014-05-23.

Linux: is anything listening on TCP 38001?

sudo ss -tlnp 'sport = :38001'

Linux / macOS: which process owns the port

sudo lsof -nP -i :38001

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':38001 '

Windows (Command Prompt)

netstat -ano | findstr :38001

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 38001 -State Listen | Select LocalAddress,OwningProcess

From another machine

nc -vz -w 5 HOST 38001

From Windows

Test-NetConnection HOST -Port 38001

ufw

sudo ufw deny 38001/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 38001 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 38001 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 38001' -Direction Inbound -Protocol TCP -LocalPort 38001 -Action Block

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