# Debian
Debian is a cool, mostly stable linux distribution.


# Automatic upgrades
Install `unattended-upgrades`
Reconfigure with `dpkg-reconfigure unattended-upgrades`
`sudo cp /etc/apt/apt.conf.d/50unattended-upgrades /etc/apt/apt.conf.d/52unattended-upgrades-local`
Make required changes
Make a dry run with `sudo unattended-upgrade -d --dry-run `
Optionally configure unattended-upgrades to send mail
Or use apt-listchanges to send mail

See the handbook for more: https://www.debian.org/doc/manuals/debian-handbook/sect.automatic-upgrades.en.html

## apt-listchanges
Sends you mail with package changes
Uses sendmail
Can use something like [msmtp-mta](msmtp) to act as sendmail interface
Configure at `/etc/msmtprc`


# Network configuration
Remember to also configure DNS!


# ifupdown (legacy)
Legacy default debian specific network config tool. Manages /etc/network/interfaces. 

## DHCP
```
auto eth0
iface eth0 inet dhcp
  hostname coolbox34
```

## Static
```
auto eth0
iface eth0 inet static
  address 10.10.10.1/24
  broadcast 10.10.10.255
  network 10.10.10.0
  gateway 10.10.10.1
```

# systemd-networkd
Configured at /etc/systemd/network/. Config files are ini-style with a .network extension.

Specify NIC with:
```ini
[Match]
Name=en*
```

## DHCP
```ini
[Network]
DHCP=yes
```

## Static
```ini
[Network]
Address=192.168.0.15/24
Gateway=192.168.0.1
```


See also
--------
See https://debian-handbook.info/browse/stable/index.html for the debian handbook.