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Port 7429 (opi-sock)

IANA assigns port 7429 to opi-sock: OpenView DM rqt communication.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
opi-sock TCP OpenView DM rqt communication Dave Lamb -
opi-sock UDP OpenView DM rqt communication Dave Lamb -

Check what is listening on port 7429

Linux: is anything listening on TCP 7429?
sudo ss -tlnp 'sport = :7429'
Linux: UDP 7429
sudo ss -ulnp 'sport = :7429'
Linux / macOS: which process owns the port
sudo lsof -nP -i :7429
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':7429 '
Windows (Command Prompt)
netstat -ano | findstr :7429
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 7429 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 7429
From Windows
Test-NetConnection HOST -Port 7429
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 7429

Block port 7429 in the firewall

ufw
sudo ufw deny 7429/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 7429 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 7429 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 7429' -Direction Inbound -Protocol TCP -LocalPort 7429 -Action Block
ufw
sudo ufw deny 7429/udp
iptables
sudo iptables -A INPUT -p udp --dport 7429 -j DROP
nftables
sudo nft add rule inet filter input udp dport 7429 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 7429' -Direction Inbound -Protocol UDP -LocalPort 7429 -Action Block

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