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Port 5724 (omsdk)

IANA assigns port 5724 to omsdk: Operations Manager - SDK Service.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
omsdk TCP Operations Manager - SDK Service Gerardo Dilillo -
omsdk UDP Operations Manager - SDK Service Gerardo Dilillo -

Registry dates for this port: registered 2006-08.

Check what is listening on port 5724

Linux: is anything listening on TCP 5724?
sudo ss -tlnp 'sport = :5724'
Linux: UDP 5724
sudo ss -ulnp 'sport = :5724'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5724
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5724 '
Windows (Command Prompt)
netstat -ano | findstr :5724
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5724 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5724
From Windows
Test-NetConnection HOST -Port 5724
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 5724

Block port 5724 in the firewall

ufw
sudo ufw deny 5724/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5724 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5724 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5724' -Direction Inbound -Protocol TCP -LocalPort 5724 -Action Block
ufw
sudo ufw deny 5724/udp
iptables
sudo iptables -A INPUT -p udp --dport 5724 -j DROP
nftables
sudo nft add rule inet filter input udp dport 5724 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 5724' -Direction Inbound -Protocol UDP -LocalPort 5724 -Action Block

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