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Port 5227 (perfd)

IANA assigns port 5227 to perfd: HP System Performance Metric Service.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
perfd TCP HP System Performance Metric Service Chris Bertin -
perfd UDP HP System Performance Metric Service Chris Bertin -

Registry dates for this port: registered 2009-05-19.

Check what is listening on port 5227

Linux: is anything listening on TCP 5227?
sudo ss -tlnp 'sport = :5227'
Linux: UDP 5227
sudo ss -ulnp 'sport = :5227'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5227
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5227 '
Windows (Command Prompt)
netstat -ano | findstr :5227
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5227 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5227
From Windows
Test-NetConnection HOST -Port 5227
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 5227

Block port 5227 in the firewall

ufw
sudo ufw deny 5227/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5227 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5227 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5227' -Direction Inbound -Protocol TCP -LocalPort 5227 -Action Block
ufw
sudo ufw deny 5227/udp
iptables
sudo iptables -A INPUT -p udp --dport 5227 -j DROP
nftables
sudo nft add rule inet filter input udp dport 5227 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 5227' -Direction Inbound -Protocol UDP -LocalPort 5227 -Action Block

Related ports

5225hp-server5226hp-status5228Google Play / FCM5229jaxflow

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