HTTPfy

Port 5989 (wbem-https)

IANA assigns port 5989 to wbem-https: WBEM CIM-XML (HTTPS).

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
wbem-https TCP WBEM CIM-XML (HTTPS) Jim Davis -
wbem-https UDP WBEM CIM-XML (HTTPS) Jim Davis -

Check what is listening on port 5989

Linux: is anything listening on TCP 5989?
sudo ss -tlnp 'sport = :5989'
Linux: UDP 5989
sudo ss -ulnp 'sport = :5989'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5989
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5989 '
Windows (Command Prompt)
netstat -ano | findstr :5989
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5989 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5989
From Windows
Test-NetConnection HOST -Port 5989
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 5989

Block port 5989 in the firewall

ufw
sudo ufw deny 5989/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5989 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5989 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5989' -Direction Inbound -Protocol TCP -LocalPort 5989 -Action Block
ufw
sudo ufw deny 5989/udp
iptables
sudo iptables -A INPUT -p udp --dport 5989 -j DROP
nftables
sudo nft add rule inet filter input udp dport 5989 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 5989' -Direction Inbound -Protocol UDP -LocalPort 5989 -Action Block

Related ports

5987wbem-rmi5988wbem-http5990wbem-exp-https5991nuxsl

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