Managing Users and Hostname on Ubuntu Server

Shaun8882024-08-03 15:07

To change the hostname of your system:

Edit the hostname file:
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```
sudo nano /etc/hostname
```
Replace the existing name with your new hostname.
Edit the hosts file:
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```
sudo nano /etc/hosts
```
Update the line that starts with 127.0.1.1 to reflect the new hostname.

Apply the changes:

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sudo systemctl restart systemd-logind.service

To rename a user:

Rename the user:

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sudo usermod -l new_username old_username

Rename the home directory (if needed):
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```
sudo usermod -d /homes/new_username -m new_username
```

To add a user to the sudo group:

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sudo usermod -aG sudo username

To add a new user with a home directory in /homes:

Create the directory (if it doesn't exist):
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```
sudo mkdir -p /homes
```

Add the user:

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sudo useradd -m -d /homes/new_user -s /bin/bash new_user

Ensure home directories are secure:

Set ownership:

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sudo chown new_user:new_user /homes/new_user

If you have any more questions or need further assistance, feel free to ask!