HTTPfy

Port 2408 (railgun-webaccl)

IANA assigns port 2408 to railgun-webaccl: CloudFlare Railgun Web Acceleration Protocol.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
railgun-webaccl TCP CloudFlare Railgun Web Acceleration Protocol CloudFlare -

Registry dates for this port: last modified 2012-03-09.

Check what is listening on port 2408

Linux: is anything listening on TCP 2408?
sudo ss -tlnp 'sport = :2408'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2408
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2408 '
Windows (Command Prompt)
netstat -ano | findstr :2408
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2408 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2408
From Windows
Test-NetConnection HOST -Port 2408

Block port 2408 in the firewall

ufw
sudo ufw deny 2408/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2408 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2408 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2408' -Direction Inbound -Protocol TCP -LocalPort 2408 -Action Block

Related ports

2406jediserver2407orion2409sns-protocol2410vrts-registry

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