HTTPfy

Port 9025 (swa-3)

IANA assigns port 9025 to swa-3: Secure Web Access - 3.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
swa-3 TCP Secure Web Access - 3 Tim McGranaghan -
swa-3 UDP Secure Web Access - 3 Tim McGranaghan -

Check what is listening on port 9025

Linux: is anything listening on TCP 9025?
sudo ss -tlnp 'sport = :9025'
Linux: UDP 9025
sudo ss -ulnp 'sport = :9025'
Linux / macOS: which process owns the port
sudo lsof -nP -i :9025
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':9025 '
Windows (Command Prompt)
netstat -ano | findstr :9025
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 9025 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 9025
From Windows
Test-NetConnection HOST -Port 9025
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 9025

Block port 9025 in the firewall

ufw
sudo ufw deny 9025/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 9025 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 9025 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 9025' -Direction Inbound -Protocol TCP -LocalPort 9025 -Action Block
ufw
sudo ufw deny 9025/udp
iptables
sudo iptables -A INPUT -p udp --dport 9025 -j DROP
nftables
sudo nft add rule inet filter input udp dport 9025 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 9025' -Direction Inbound -Protocol UDP -LocalPort 9025 -Action Block

Related ports

9023swa-19024swa-29026swa-49050Tor SOCKS

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