Bootstrapping Debian

a little helper how to generate a Debian Template. This time, it’s a VM Hosted on Vultr

New VM

1 CPU, 1GB RAM, 25GB Disk

upload debian-10.9.0-amd64-netinst.iso
boot from iso
install:      (text based)
lang:         english
country:      switzerland
locale:       US (en_US.UTF-8)
keymap:       Swiss German
nic:          ens3
hostname:     template-25G
domain:       your.domain.de
passwd:       xxxxxxxx
user:         firstname lastname / loginame
passwd:       xxxxxxxx
disk:         Guided - entire disk with LVM - (one partition | separate /home | separate /home, /var and /tmp)
              separate partition for large disks
              one partition for smaller disks
write:        yes
disk:         20GB (for guided partitioning), 5GB for Spare
write:        yes
another dvd:  no
mirror:       switzerland, debian.ethz.ch
survey:       no
software:     SSH Server, standard system utilities
grub:         yes, /dev/sda3

remove iso and reboot

login as user, su to root

mkdir /root/.ssh && chmod 600 /root/.ssh
echo "ssh-ed25519 AAAAxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" >> /root/.ssh/authorized_keys
chmod 600 /root/.ssh/authorized_keys

halt -p
-> snapshot template-debian-25G

sha256: 5b87992169bc05b44db33f9e79fa557f81844b871c8a7566d94b8bf11841ad32

Bootstrapping VM

This is similar to the previous Post, but with a small difference.

Here, we add an other Partition /jail with 2GB Size. On this Partition, we remove the nodev & nosuid Flag, so we can use this Partition as Root for some Jailed Users. And last but not least, we fireup a new VM, configure a Jailed User and make it Public Available …

VM with 20G Disk

*** Bootstrap OpenBSD 6.8 ***

Bootstrapping VM

It’s always good to have Templates. Isn’t it ? Sometime, with a lot of stuff preconfigured and installed. Sometimes, a fresh install without anything (except syspatches). Here a little Helper, how to Build a OpenBSD Template with 20GB, resp. 40GB Disk Size.

This stuff was tested on www.hetzner.de, so you should be able to reproduce it in a few minutes.

Costs: CX11,  1 CPU, 2 GB RAM, 20 GB Disk, 20TB Traffic -> 2.68 Euro/Month
Costs: CPX11, 2 CPU, 2 GB RAM, 40 GB Disk, 20TB Traffic -> 3.76 Euro/Month

If you create an Account, you can use my sponsor link and we both get “a few bucks” to play with …