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Port 23001 (inovaport2)

IANA assigns port 23001 to inovaport2: Inova LightLink Server Type 2.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
inovaport2 TCP Inova LightLink Server Type 2 Chris Koeritz 3 -
inovaport2 UDP Inova LightLink Server Type 2 Chris Koeritz 3 -

Registry dates for this port: registered 2006-10.

Check what is listening on port 23001

Linux: is anything listening on TCP 23001?
sudo ss -tlnp 'sport = :23001'
Linux: UDP 23001
sudo ss -ulnp 'sport = :23001'
Linux / macOS: which process owns the port
sudo lsof -nP -i :23001
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':23001 '
Windows (Command Prompt)
netstat -ano | findstr :23001
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 23001 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 23001
From Windows
Test-NetConnection HOST -Port 23001
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 23001

Block port 23001 in the firewall

ufw
sudo ufw deny 23001/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 23001 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 23001 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 23001' -Direction Inbound -Protocol TCP -LocalPort 23001 -Action Block
ufw
sudo ufw deny 23001/udp
iptables
sudo iptables -A INPUT -p udp --dport 23001 -j DROP
nftables
sudo nft add rule inet filter input udp dport 23001 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 23001' -Direction Inbound -Protocol UDP -LocalPort 23001 -Action Block

Related ports

22951brf-gw23000inovaport123002inovaport323003inovaport4

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