Port 3038 (santak-ups)

IANA assigns port 3038 to santak-ups: Santak UPS.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference

santak-ups TCP Santak UPS Tom Liu -

santak-ups UDP Santak UPS Tom Liu -

Linux: is anything listening on TCP 3038?

sudo ss -tlnp 'sport = :3038'

Linux: UDP 3038

sudo ss -ulnp 'sport = :3038'

Linux / macOS: which process owns the port

sudo lsof -nP -i :3038

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':3038 '

Windows (Command Prompt)

netstat -ano | findstr :3038

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3038 -State Listen | Select LocalAddress,OwningProcess

From another machine

nc -vz -w 5 HOST 3038

From Windows

Test-NetConnection HOST -Port 3038

UDP probe (no reply does not prove it is closed)

nc -vzu -w 5 HOST 3038

ufw

sudo ufw deny 3038/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 3038 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 3038 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 3038' -Direction Inbound -Protocol TCP -LocalPort 3038 -Action Block

ufw

sudo ufw deny 3038/udp

iptables

sudo iptables -A INPUT -p udp --dport 3038 -j DROP

nftables

sudo nft add rule inet filter input udp dport 3038 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block UDP 3038' -Direction Inbound -Protocol UDP -LocalPort 3038 -Action Block

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Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.