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Port 45054 (invision-ag)

IANA assigns port 45054 to invision-ag: InVision AG.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
invision-ag TCP InVision AG Matthias Schroer -
invision-ag UDP InVision AG Matthias Schroer -

Check what is listening on port 45054

Linux: is anything listening on TCP 45054?
sudo ss -tlnp 'sport = :45054'
Linux: UDP 45054
sudo ss -ulnp 'sport = :45054'
Linux / macOS: which process owns the port
sudo lsof -nP -i :45054
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':45054 '
Windows (Command Prompt)
netstat -ano | findstr :45054
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 45054 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 45054
From Windows
Test-NetConnection HOST -Port 45054
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 45054

Block port 45054 in the firewall

ufw
sudo ufw deny 45054/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 45054 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 45054 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 45054' -Direction Inbound -Protocol TCP -LocalPort 45054 -Action Block
ufw
sudo ufw deny 45054/udp
iptables
sudo iptables -A INPUT -p udp --dport 45054 -j DROP
nftables
sudo nft add rule inet filter input udp dport 45054 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 45054' -Direction Inbound -Protocol UDP -LocalPort 45054 -Action Block

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