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Port 1126 (hpvmmdata)

IANA assigns port 1126 to hpvmmdata: HP VMM Agent.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
hpvmmdata TCP HP VMM Agent John Morton -
hpvmmdata UDP HP VMM Agent John Morton -

Registry dates for this port: registered 2004-11.

Check what is listening on port 1126

Linux: is anything listening on TCP 1126?
sudo ss -tlnp 'sport = :1126'
Linux: UDP 1126
sudo ss -ulnp 'sport = :1126'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1126
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1126 '
Windows (Command Prompt)
netstat -ano | findstr :1126
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1126 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1126
From Windows
Test-NetConnection HOST -Port 1126
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1126

Block port 1126 in the firewall

ufw
sudo ufw deny 1126/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1126 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1126 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1126' -Direction Inbound -Protocol TCP -LocalPort 1126 -Action Block
ufw
sudo ufw deny 1126/udp
iptables
sudo iptables -A INPUT -p udp --dport 1126 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1126 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1126' -Direction Inbound -Protocol UDP -LocalPort 1126 -Action Block

Related ports

1124hpvmmcontrol1125hpvmmagent1127kwdb-commn1128saphostctrl

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