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Port 2406 (jediserver)

IANA assigns port 2406 to jediserver: JediServer.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
jediserver TCP JediServer Paul McEntire -
jediserver UDP JediServer Paul McEntire -

Check what is listening on port 2406

Linux: is anything listening on TCP 2406?
sudo ss -tlnp 'sport = :2406'
Linux: UDP 2406
sudo ss -ulnp 'sport = :2406'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2406
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2406 '
Windows (Command Prompt)
netstat -ano | findstr :2406
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2406 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2406
From Windows
Test-NetConnection HOST -Port 2406
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2406

Block port 2406 in the firewall

ufw
sudo ufw deny 2406/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2406 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2406 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2406' -Direction Inbound -Protocol TCP -LocalPort 2406 -Action Block
ufw
sudo ufw deny 2406/udp
iptables
sudo iptables -A INPUT -p udp --dport 2406 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2406 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2406' -Direction Inbound -Protocol UDP -LocalPort 2406 -Action Block

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