Port 26257
cockroach · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | cockroach |
| Registered | 2015-09-29 |
Frequently asked questions
What is port 26257 used for?
Port 26257 is registered with the IANA for cockroach (TCP/UDP). Description: CockroachDB; Reserved.
Is port 26257 a well-known port?
No. Port 26257 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 26257 is open?
Locally on Linux with ss -tulpn | grep ':26257\b', on Windows with netstat -ano | findstr :26257. To test a remote host use Test-NetConnection <host> -Port 26257 in PowerShell or nc -zv <host> 26257 on Linux/macOS.
How do I open port 26257 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 26257/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=26257/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 26257" -Direction Inbound -Protocol TCP -LocalPort 26257 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | cockroach | CockroachDB |
| UDP | – | Reserved |