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Port 468 (photuris)

IANA assigns port 468 to photuris: proturis.

Well-known (system) port, 0-1023 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
photuris TCP proturis Bill Simpson 2 -
photuris UDP proturis Bill Simpson 2 -

Check what is listening on port 468

Linux: is anything listening on TCP 468?
sudo ss -tlnp 'sport = :468'
Linux: UDP 468
sudo ss -ulnp 'sport = :468'
Linux / macOS: which process owns the port
sudo lsof -nP -i :468
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':468 '
Windows (Command Prompt)
netstat -ano | findstr :468
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 468 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 468
From Windows
Test-NetConnection HOST -Port 468
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 468

Block port 468 in the firewall

ufw
sudo ufw deny 468/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 468 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 468 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 468' -Direction Inbound -Protocol TCP -LocalPort 468 -Action Block
ufw
sudo ufw deny 468/udp
iptables
sudo iptables -A INPUT -p udp --dport 468 -j DROP
nftables
sudo nft add rule inet filter input udp dport 468 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 468' -Direction Inbound -Protocol UDP -LocalPort 468 -Action Block

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466digital-vrc467mylex-mapd469rcp470scx-proxy

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