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

# Change Hostname Of A System

Typically, hostname of a system is stored in `/etc/hostname`, and we can change that by writing a new hostname in `/etc/hostname` file.

## Method 1

1. Edit `/etc/hostname` with any text editor such as nano or vim, and replace the existing hostname -

```bash
sudo nano /etc/hostname
```

2. Save and reboot -

```bash
sudo reboot
```

## Method 2

Using `hostnamectl` command we can also set hostname, following is an example -

```
sudo hostnamectl set-hostname Dell-G15-5515
sudo reboot
```

To display current hostname, we can use `hostname` command.

***Source:*** [***CyberCiti***](https://www.cyberciti.biz/faq/ubuntu-change-hostname-command/)