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Port 3626 (bvcdaemon-port)

IANA assigns port 3626 to bvcdaemon-port: bvControl Daemon.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
bvcdaemon-port TCP bvControl Daemon Ravi Gokhale -
bvcdaemon-port UDP bvControl Daemon Ravi Gokhale -

Registry dates for this port: registered 2002-10.

Check what is listening on port 3626

Linux: is anything listening on TCP 3626?
sudo ss -tlnp 'sport = :3626'
Linux: UDP 3626
sudo ss -ulnp 'sport = :3626'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3626
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3626 '
Windows (Command Prompt)
netstat -ano | findstr :3626
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3626 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3626
From Windows
Test-NetConnection HOST -Port 3626
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3626

Block port 3626 in the firewall

ufw
sudo ufw deny 3626/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3626 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3626 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3626' -Direction Inbound -Protocol TCP -LocalPort 3626 -Action Block
ufw
sudo ufw deny 3626/udp
iptables
sudo iptables -A INPUT -p udp --dport 3626 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3626 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3626' -Direction Inbound -Protocol UDP -LocalPort 3626 -Action Block

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