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Port 4674 (appiq-mgmt)

IANA assigns port 4674 to appiq-mgmt: AppIQ Agent Management.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
appiq-mgmt TCP AppIQ Agent Management Phil Abercrombie -
appiq-mgmt UDP AppIQ Agent Management Phil Abercrombie -

Registry dates for this port: registered 2005-08.

Check what is listening on port 4674

Linux: is anything listening on TCP 4674?
sudo ss -tlnp 'sport = :4674'
Linux: UDP 4674
sudo ss -ulnp 'sport = :4674'
Linux / macOS: which process owns the port
sudo lsof -nP -i :4674
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':4674 '
Windows (Command Prompt)
netstat -ano | findstr :4674
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 4674 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 4674
From Windows
Test-NetConnection HOST -Port 4674
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 4674

Block port 4674 in the firewall

ufw
sudo ufw deny 4674/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 4674 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 4674 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 4674' -Direction Inbound -Protocol TCP -LocalPort 4674 -Action Block
ufw
sudo ufw deny 4674/udp
iptables
sudo iptables -A INPUT -p udp --dport 4674 -j DROP
nftables
sudo nft add rule inet filter input udp dport 4674 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 4674' -Direction Inbound -Protocol UDP -LocalPort 4674 -Action Block

Related ports

4672rfa4673cxws4675dhct-status4676dhct-alerts

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