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Port 4404 (ds-admin)

IANA assigns port 4404 to ds-admin: ASIGRA Televaulting DS-System Monitoring/Management.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
ds-admin TCP ASIGRA Televaulting DS-System Monitoring/Management - -
ds-admin UDP ASIGRA Televaulting DS-System Monitoring/Management - -

Check what is listening on port 4404

Linux: is anything listening on TCP 4404?
sudo ss -tlnp 'sport = :4404'
Linux: UDP 4404
sudo ss -ulnp 'sport = :4404'
Linux / macOS: which process owns the port
sudo lsof -nP -i :4404
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':4404 '
Windows (Command Prompt)
netstat -ano | findstr :4404
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 4404 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 4404
From Windows
Test-NetConnection HOST -Port 4404
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 4404

Block port 4404 in the firewall

ufw
sudo ufw deny 4404/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 4404 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 4404 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 4404' -Direction Inbound -Protocol TCP -LocalPort 4404 -Action Block
ufw
sudo ufw deny 4404/udp
iptables
sudo iptables -A INPUT -p udp --dport 4404 -j DROP
nftables
sudo nft add rule inet filter input udp dport 4404 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 4404' -Direction Inbound -Protocol UDP -LocalPort 4404 -Action Block

Related ports

4402ds-clnt4403ds-user4405ds-mail4406ds-slp

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