Port 22537
caldsoft-backup · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | caldsoft-backup |
| Registered | 2011-08-12 |
Frequently asked questions
What is port 22537 used for?
Port 22537 is registered with the IANA for caldsoft-backup (TCP/UDP). Description: CaldSoft Backup server file transfer; Reserved.
Is port 22537 a well-known port?
No. Port 22537 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 22537 is open?
Locally on Linux with ss -tulpn | grep ':22537\b', on Windows with netstat -ano | findstr :22537. To test a remote host use Test-NetConnection <host> -Port 22537 in PowerShell or nc -zv <host> 22537 on Linux/macOS.
How do I open port 22537 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 22537/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=22537/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 22537" -Direction Inbound -Protocol TCP -LocalPort 22537 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | caldsoft-backup | CaldSoft Backup server file transfer |
| UDP | – | Reserved |