Change System Hostname

The Change Hostname page allows you to update the system's hostname.

Overview

URL: /admin/change-hostname

This page enables administrators to modify the hostname.

The hostname is a key component of your server's identity and is used in outgoing mail headers and various system services. It should be a Fully Qualified Domain Name (FQDN), such as host.example.com.

Current Hostname

Displays the currently configured hostname for your server.

New Hostname

Input field for entering the new hostname.

Hostname requirements:

• Only letters, numbers, and hyphens are allowed
• Must not start or end with a hyphen
• Should not start with a number

Info Tooltip

Clicking the "i" icon next to the input field displays the following help text:

• Use a Fully Qualified Domain Name (FQDN) like host.example.com
• Should be under 60 characters
• Never start with "www"
• Cannot begin with a digit or end with a hyphen "-"
• Use lowercase Latin letters only
• Each section must be unique (no repeating parts)

When choosing a hostname, avoid using any name that might later be needed for a user account or service subdomain (e.g., bolt.example.com or adminbolt.example.com).

Instead, pick something neutral and socially appropriate, as the hostname will appear in all outgoing mail headers.

Your hostname must be a Fully Qualified Domain Name (FQDN), meaning it should include both a name and a domain (like host.example.com) and contain at least two dots.

Choose wisely to avoid conflicts and ensure proper functionality.

Change Hostname Button

Clicking the Change Hostname button applies the new hostname.