HTTPfy

Port 3011 (trusted-web)

IANA assigns port 3011 to trusted-web: Trusted Web.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
trusted-web TCP Trusted Web - -
trusted-web UDP Trusted Web - -

Check what is listening on port 3011

Linux: is anything listening on TCP 3011?
sudo ss -tlnp 'sport = :3011'
Linux: UDP 3011
sudo ss -ulnp 'sport = :3011'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3011
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3011 '
Windows (Command Prompt)
netstat -ano | findstr :3011
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3011 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3011
From Windows
Test-NetConnection HOST -Port 3011
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3011

Block port 3011 in the firewall

ufw
sudo ufw deny 3011/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3011 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3011 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3011' -Direction Inbound -Protocol TCP -LocalPort 3011 -Action Block
ufw
sudo ufw deny 3011/udp
iptables
sudo iptables -A INPUT -p udp --dport 3011 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3011 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3011' -Direction Inbound -Protocol UDP -LocalPort 3011 -Action Block

Related ports

3009pxc-ntfy3010gw, ping-pong3012twsdss3013gilatskysurfer

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