Port 13721
bpdbm · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | bpdbm |
Frequently asked questions
What is port 13721 used for?
Port 13721 is registered with the IANA for bpdbm (TCP/UDP). Description: BPDBM Protocol (VERITAS NetBackup).
Is port 13721 a well-known port?
No. Port 13721 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 13721 is open?
Locally on Linux with ss -tulpn | grep ':13721\b', on Windows with netstat -ano | findstr :13721. To test a remote host use Test-NetConnection <host> -Port 13721 in PowerShell or nc -zv <host> 13721 on Linux/macOS.
How do I open port 13721 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 13721/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=13721/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 13721" -Direction Inbound -Protocol TCP -LocalPort 13721 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | bpdbm | BPDBM Protocol (VERITAS NetBackup) |
| UDP | bpdbm | BPDBM Protocol (VERITAS NetBackup) |