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Port 2147 (lv-auth)

IANA assigns port 2147 to lv-auth: Live Vault Authentication.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
lv-auth TCP Live Vault Authentication Ted Hess -
lv-auth UDP Live Vault Authentication Ted Hess -

Check what is listening on port 2147

Linux: is anything listening on TCP 2147?
sudo ss -tlnp 'sport = :2147'
Linux: UDP 2147
sudo ss -ulnp 'sport = :2147'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2147
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2147 '
Windows (Command Prompt)
netstat -ano | findstr :2147
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2147 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2147
From Windows
Test-NetConnection HOST -Port 2147
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2147

Block port 2147 in the firewall

ufw
sudo ufw deny 2147/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2147 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2147 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2147' -Direction Inbound -Protocol TCP -LocalPort 2147 -Action Block
ufw
sudo ufw deny 2147/udp
iptables
sudo iptables -A INPUT -p udp --dport 2147 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2147 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2147' -Direction Inbound -Protocol UDP -LocalPort 2147 -Action Block

Related ports

2145lv-pici2146lv-not2148veritas-ucl2149acptsys

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