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Port 4730 (gearman)

IANA assigns port 4730 to gearman: Gearman Job Queue System.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
gearman TCP Gearman Job Queue System Eric Day -
gearman UDP Gearman Job Queue System Eric Day -

Registry dates for this port: registered 2009-01-16.

Check what is listening on port 4730

Linux: is anything listening on TCP 4730?
sudo ss -tlnp 'sport = :4730'
Linux: UDP 4730
sudo ss -ulnp 'sport = :4730'
Linux / macOS: which process owns the port
sudo lsof -nP -i :4730
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':4730 '
Windows (Command Prompt)
netstat -ano | findstr :4730
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 4730 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 4730
From Windows
Test-NetConnection HOST -Port 4730
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 4730

Block port 4730 in the firewall

ufw
sudo ufw deny 4730/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 4730 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 4730 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 4730' -Direction Inbound -Protocol TCP -LocalPort 4730 -Action Block
ufw
sudo ufw deny 4730/udp
iptables
sudo iptables -A INPUT -p udp --dport 4730 -j DROP
nftables
sudo nft add rule inet filter input udp dport 4730 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 4730' -Direction Inbound -Protocol UDP -LocalPort 4730 -Action Block

Related ports

4728capmux4729gsmtap4731remcap4732ohmtrigger

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