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Port 2678 (gadgetgate2way)

IANA assigns port 2678 to gadgetgate2way: Gadget Gate 2 Way.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
gadgetgate2way TCP Gadget Gate 2 Way Matt Rollins -
gadgetgate2way UDP Gadget Gate 2 Way Matt Rollins -

Check what is listening on port 2678

Linux: is anything listening on TCP 2678?
sudo ss -tlnp 'sport = :2678'
Linux: UDP 2678
sudo ss -ulnp 'sport = :2678'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2678
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2678 '
Windows (Command Prompt)
netstat -ano | findstr :2678
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2678 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2678
From Windows
Test-NetConnection HOST -Port 2678
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2678

Block port 2678 in the firewall

ufw
sudo ufw deny 2678/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2678 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2678 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2678' -Direction Inbound -Protocol TCP -LocalPort 2678 -Action Block
ufw
sudo ufw deny 2678/udp
iptables
sudo iptables -A INPUT -p udp --dport 2678 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2678 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2678' -Direction Inbound -Protocol UDP -LocalPort 2678 -Action Block

Related ports

2676simslink2677gadgetgate1way2679syncserverssl2680pxc-sapxom

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