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Port 7431 (pmd)

IANA assigns port 7431 to pmd: OpenView DM ovc/xmpv3 api pipe.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
pmd TCP OpenView DM ovc/xmpv3 api pipe Dave Lamb -
pmd UDP OpenView DM ovc/xmpv3 api pipe Dave Lamb -

Check what is listening on port 7431

Linux: is anything listening on TCP 7431?
sudo ss -tlnp 'sport = :7431'
Linux: UDP 7431
sudo ss -ulnp 'sport = :7431'
Linux / macOS: which process owns the port
sudo lsof -nP -i :7431
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':7431 '
Windows (Command Prompt)
netstat -ano | findstr :7431
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 7431 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 7431
From Windows
Test-NetConnection HOST -Port 7431
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 7431

Block port 7431 in the firewall

ufw
sudo ufw deny 7431/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 7431 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 7431 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 7431' -Direction Inbound -Protocol TCP -LocalPort 7431 -Action Block
ufw
sudo ufw deny 7431/udp
iptables
sudo iptables -A INPUT -p udp --dport 7431 -j DROP
nftables
sudo nft add rule inet filter input udp dport 7431 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 7431' -Direction Inbound -Protocol UDP -LocalPort 7431 -Action Block

Related ports

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