> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/tmedia-documentation/configuration/change-hostname.md).

# Change Hostname

This procedure applies to [TMG800](https://telcobridges.com/media-gateways/products/tmedia-gateways/tmg800/), [TMG3200](https://telcobridges.com/media-gateways/products/tmedia-gateways/tmg3200/), [TMG7800](https://telcobridges.com/media-gateways/products/tmedia-gateways/tmg7800/) and [ProSBC](https://telcobridges.com/sbc/products/prosbc/) with static IP for management interfaces.

Requires version 2.9 and above

**Note**: For [ProSBC](https://telcobridges.com/sbc/products/prosbc/), this will require a license update. Make sure you inform the [Support](https://github.com/telcobridges-main/tmedia-wiki/tree/main/reference/misc/contacting-telcobridges-technical-support/README.md) team that this procedure will be done.

### CentOS 7 procedure

* [ssh](https://github.com/telcobridges-main/tmedia-wiki/tree/main/tmedia/operations/accessing-device/README.md#ssh) to the management interface
* To view current hostname: hostnamectl
* To update the hostname: hostnamectl set-hostname NewHostName
* To update the /etc/hosts file: vim /etc/hosts Replace the hostnames in the file
* Reboot server: shutdown -r now
* After reboot verify if everything is ok: hostnamectl cat /etc/hosts

### CentOS 5 procedure

* [ssh](https://github.com/telcobridges-main/tmedia-wiki/tree/main/tmedia/operations/accessing-device/README.md#ssh) to the management interface
* To view current hostname: hostname
* To update the hostname: hostname NewHostName
* Reboot server: shutdown -r now

Note: DO NOT change the hostname via webportal.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://prosbcdocs.telcobridges.com/tmedia-documentation/configuration/change-hostname.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.