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Port 9278 (pegasus)

IANA assigns port 9278 to pegasus: Pegasus GPS Platform.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
pegasus TCP Pegasus GPS Platform Nestor A Diaz -
pegasus UDP Pegasus GPS Platform Nestor A Diaz -

Registry dates for this port: registered 2009-05-12.

Check what is listening on port 9278

Linux: is anything listening on TCP 9278?
sudo ss -tlnp 'sport = :9278'
Linux: UDP 9278
sudo ss -ulnp 'sport = :9278'
Linux / macOS: which process owns the port
sudo lsof -nP -i :9278
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':9278 '
Windows (Command Prompt)
netstat -ano | findstr :9278
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 9278 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 9278
From Windows
Test-NetConnection HOST -Port 9278
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 9278

Block port 9278 in the firewall

ufw
sudo ufw deny 9278/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 9278 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 9278 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 9278' -Direction Inbound -Protocol TCP -LocalPort 9278 -Action Block
ufw
sudo ufw deny 9278/udp
iptables
sudo iptables -A INPUT -p udp --dport 9278 -j DROP
nftables
sudo nft add rule inet filter input udp dport 9278 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 9278' -Direction Inbound -Protocol UDP -LocalPort 9278 -Action Block

Related ports

9255mon9277traingpsdata9279pegasus-ctl9280pgps

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