# Raspberry Pi (Debian)

# Fresh installation of Raspberian (RaspOS)

What is inside ?

```bash
free -h
df -hT | sort

```

[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-03/scaled-1680-/Oo5HytVaEhr68qee-image-1773774243813.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-03/Oo5HytVaEhr68qee-image-1773774243813.png)

Lite (no-GUI)

[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-03/scaled-1680-/xJRADcGQOKZqyq3v-image-1774463901313.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-03/xJRADcGQOKZqyq3v-image-1774463901313.png)

Full Raspberian

[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-05/scaled-1680-/jGWCbNcr4kLKHu0h-image-1777798754527.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-05/jGWCbNcr4kLKHu0h-image-1777798754527.png)

Add yourself privileged access

```bash
sudo su
nano /etc/sudoers.d/099_anton

```

```ini
anton ALL=(ALL:ALL) NOPASSWD: ALL

```

Verify (valuable is last command)

```bash
sudo -l -U anton

```

[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-05/scaled-1680-/TD7s7p0S2BAa3JVs-image-1777798623724.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-05/TD7s7p0S2BAa3JVs-image-1777798623724.png)

Install tmux (screen)

```bash
sudo su
apt install tmux

exit

tmux

sudo su

```

Install tools, utils

```bash
apt install \
    tcpdump \
    ncdu \
    htop \
    tcptraceroute

```

Update

```bash
apt update
apt upgrade

```

Remove not essential

```bash
apt remove \
    libcamera-ipa \
    librpicam-app1 \
    rpicam-apps-core

```

Is it worth to clean up for 8 MB? (need to search for memory consuming useless services.

```
Summary:
  Upgrading: 0, Installing: 0, Removing: 5, Not Upgrading: 0
  Freed space: 9,299 kB

```

Reboot

```bash
shutdown -r now

```

# rpi-connect

(installed during rpi-writer)

# rustdesk

# duckdns

# icinga agent

# Hostname

Disbale cloud-init (which overwrites everyboot, not the first only)

```bash
touch /etc/cloud/cloud-init.disabled

```

Set new hostname

```bash
hostnamectl set-hostname ku5mon1

```

[![](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-02/scaled-1680-/Mnl19VzxzquOltqj-image-1772201371388.png)](https://storage.googleapis.com/iau-data-dox/uploads/images/gallery/2026-02/Mnl19VzxzquOltqj-image-1772201371388.png)

```bash
shutdown -r now

```