Skip to content

Instantly share code, notes, and snippets.

@MartinBucko
Created April 15, 2023 03:29
Show Gist options
  • Select an option

  • Save MartinBucko/b376df78f9bdd5dd4c1ad45fa8c62cb2 to your computer and use it in GitHub Desktop.

Select an option

Save MartinBucko/b376df78f9bdd5dd4c1ad45fa8c62cb2 to your computer and use it in GitHub Desktop.
fv-ckoud-config
#cloud-config
users:
- name: ${username}
groups: ${username}, users, admin
sudo: ALL=(ALL) NOPASSWD:ALL
shell: /bin/bash
ssh_authorized_keys:
- ${user-ssh-key}
packages:
- ca-certificates
- fail2ban
- ufw
- vim
- vifm
- wget
- curl
- git
- nano
- micro
- pythom3
- python3-pip
- qemu-guest-agent
package_update: true
package_upgrade: true
runcmd:
- printf "[sshd]\nenabled = true\nbanaction = iptables-multiport" > /etc/fail2ban/jail.local
- systemctl enable fail2ban
- ufw allow OpenSSH
- ufw enable
- sed -i -e '/^PermitRootLogin/s/^.*$/PermitRootLogin no/' /etc/ssh/sshd_config
- sed -i -e '/^PasswordAuthentication/s/^.*$/PasswordAuthentication no/' /etc/ssh/sshd_config
- sed -i -e '/^X11Forwarding/s/^.*$/X11Forwarding no/' /etc/ssh/sshd_config
- sed -i -e '/^#MaxAuthTries/s/^.*$/MaxAuthTries 3/' /etc/ssh/sshd_config
- sed -i -e '/^#AllowTcpForwarding/s/^.*$/AllowTcpForwarding no/' /etc/ssh/sshd_config
- sed -i -e '/^#AllowAgentForwarding/s/^.*$/AllowAgentForwarding no/' /etc/ssh/sshd_config
- sed -i -e '/^#AuthorizedKeysFile/s/^.*$/AuthorizedKeysFile .ssh\/authorized_keys/' /etc/ssh/sshd_config
- sed -i '$a AllowUsers ${username}' /etc/ssh/sshd_config
- reboot
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment