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Port 4147 (vrxpservman)

IANA assigns port 4147 to vrxpservman: Multum Service Manager.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
vrxpservman TCP Multum Service Manager Scott Mager -
vrxpservman UDP Multum Service Manager Scott Mager -

Registry dates for this port: registered 2006-10.

Check what is listening on port 4147

Linux: is anything listening on TCP 4147?
sudo ss -tlnp 'sport = :4147'
Linux: UDP 4147
sudo ss -ulnp 'sport = :4147'
Linux / macOS: which process owns the port
sudo lsof -nP -i :4147
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':4147 '
Windows (Command Prompt)
netstat -ano | findstr :4147
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 4147 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 4147
From Windows
Test-NetConnection HOST -Port 4147
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 4147

Block port 4147 in the firewall

ufw
sudo ufw deny 4147/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 4147 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 4147 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 4147' -Direction Inbound -Protocol TCP -LocalPort 4147 -Action Block
ufw
sudo ufw deny 4147/udp
iptables
sudo iptables -A INPUT -p udp --dport 4147 -j DROP
nftables
sudo nft add rule inet filter input udp dport 4147 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 4147' -Direction Inbound -Protocol UDP -LocalPort 4147 -Action Block

Related ports

4145vvr-control4146tgcconnect4148hhb-handheld4149agslb

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