kevinveenbirkenbach/hetzner-arch-luks
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Kevin Veen-Birkenbach 2020-04-17 19:21:08 +02:00
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@ -97,12 +97,11 @@ with
```
HOOKS=(base udev autodetect modconf block mdadm_udev lvm2 netconf dropbear encryptssh filesystems keyboard fsck)
```
<span style="color:red">
/etc/initramfs-tools/initramfs.conf anpassen <br>
> :warning: In the original example the initramfs get modified. Don't know if this is still necessary:
/etc/initramfs-tools/initramfs.conf<br>
Alt: BUSYBOX=auto <br>
Neu: BUSYBOX=y <br>
http://daemons-point.com/blog/2019/10/20/hetzner-verschluesselt/#etcinitramfs-toolsinitramfsconf-anpassen
</span>
### 4. Activate Encryption
#### 4.1
@ -198,22 +197,23 @@ chroot /mnt
echo "cryptroot /dev/md1 none luks" >> /etc/crypttab
```
#### 4.15
rewrite initramfs <span style="color:red">***?assume this should be right???***</span>
```bash
mkinitcpio -p linux
```
Missing **initramfs neu schreiben** **GRUB neu schreiben**
### 5
<span style="color:red">ist das folgende richtig</span>
#### 5.1
Install grub:
```bash
pacman -S grub
```
<span style="color:red">Is the following correct? See https://wiki.archlinux.org/index.php/Dm-crypt/Specialties#Remote_unlocking_(hooks:_netconf,_dropbear,_tinyssh,_ppp)</span>
> :warning: I'm not shure if the following is correct. Please check out this [link](https://wiki.archlinux.org/index.php/Dm-crypt/Specialties#Remote_unlocking_(hooks:_netconf,_dropbear,_tinyssh,_ppp)) . I appreciate feedback :two_hearts:
#### 5.2
Edit /etc/default/grub and tell the Kernel about the cryptdevice and the mdraid, and netconf that we want dhcp
```bash
GRUB_CMDLINE_LINUX="cryptdevice=/dev/md0:root ip=dhcp"
```
#### 5.3
```bash
grub-mkconfig -o /boot/grub/grub.cfg
```
@ -223,23 +223,7 @@ grub-install /dev/sda
grub-install /dev/sdb
```
ssh-keygen -b 4096 -t rsa -m PEM -f /etc/ssh/ssh_host_rsa_key
dropbearconvert openssh dropbear /etc/ssh/ssh_host_rsa_key /etc/dropbear/dropbear_rsa_host_key
* https://github.com/random-archer/mkinitcpio-systemd-tool/issues/21
* https://github.com/random-archer/mkinitcpio-systemd-tool/issues/17
* https://bbs.archlinux.org/viewtopic.php?id=250512
from point 4 on I have questions:
https://wiki.archlinux.org/index.php/Dm-crypt/Specialties#chkboot
check this one also out:
* https://blog.simonszu.de/set-up-luks-on-a-physical-hetzner-server-with-debian/ -> specially the part about dropbear configuration and ssh keys
https://gist.github.com/HardenedArray/31915e3d73a4ae45adc0efa9ba458b07
https://code.trafficking.agency/arch-linux-remote-unlock-root-volume-with-mdraid-and-dmcrypt.html
#### 4.15
#### 5.4
```bash
exit
umount /mnt/boot /mnt/proc /mnt/sys /mnt/dev
@ -251,10 +235,24 @@ reboot
```
### 6.
#### 6.1
Decrypt server:
```bash
ssh -o UserKnownHostsFile=/dev/null root@your_server_ip
cryptroot-unlock
exit
```
#### 6.2
Login to server:
```bash
ssh-keygen -f "$HOME/.ssh/known_hosts" -R your_server_ip
ssh root@your_server_ip
```
## Sources
The code is adapted from the following guides:
* http://daemons-point.com/blog/2019/10/20/hetzner-verschluesselt/
* https://www.howtoforge.com/using-the-btrfs-filesystem-with-raid1-with-ubuntu-12.10-on-a-hetzner-server
* https://code.trafficking.agency/arch-linux-remote-unlock-root-volume-with-mdraid-and-dmcrypt.html
* https://wiki.archlinux.org/index.php/Dm-crypt/Specialties#Remote_unlocking_(hooks:_netconf,_dropbear,_tinyssh,_ppp)