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Port 13720 (bprd)

IANA assigns port 13720 to bprd: BPRD Protocol (VERITAS NetBackup).

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
bprd TCP BPRD Protocol (VERITAS NetBackup) Jeff Holmbeck -
bprd UDP BPRD Protocol (VERITAS NetBackup) Jeff Holmbeck -

Check what is listening on port 13720

Linux: is anything listening on TCP 13720?
sudo ss -tlnp 'sport = :13720'
Linux: UDP 13720
sudo ss -ulnp 'sport = :13720'
Linux / macOS: which process owns the port
sudo lsof -nP -i :13720
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':13720 '
Windows (Command Prompt)
netstat -ano | findstr :13720
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 13720 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 13720
From Windows
Test-NetConnection HOST -Port 13720
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 13720

Block port 13720 in the firewall

ufw
sudo ufw deny 13720/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 13720 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 13720 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 13720' -Direction Inbound -Protocol TCP -LocalPort 13720 -Action Block
ufw
sudo ufw deny 13720/udp
iptables
sudo iptables -A INPUT -p udp --dport 13720 -j DROP
nftables
sudo nft add rule inet filter input udp dport 13720 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 13720' -Direction Inbound -Protocol UDP -LocalPort 13720 -Action Block

Related ports

13224powwow-server13400doip-data, doip-disc13721bpdbm13722bpjava-msvc

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