- #DROPBEAR SSH ENCRYPTED SYSTEM INSTALL#
- #DROPBEAR SSH ENCRYPTED SYSTEM UPDATE#
- #DROPBEAR SSH ENCRYPTED SYSTEM PASSWORD#
- #DROPBEAR SSH ENCRYPTED SYSTEM ISO#
Now we have to rebuild the server's initramfs and to update the dracut-crypt-ssh configuration by typing this command in your terminal: dracut -f Let's fix the keys file permissions by typing this command: chmod 444 -R /etc/dropbear/auth/ We can do this by running this command: touch /root/.ssh/authorized_keys & cat /root/.ssh/id_rsa.pub > /root/.ssh/authorized_keys Once you are done generating your personal SSH key, we have to add your public SSH key to the file /etc/dropbear/auth/authorized_keys. When you are prompted to enter passphrase or file location, just press Enter. Run this command: cd /root & ssh-keygen -t rsa -b 4096
When you are prompted to enter a passphrase, just press Enter. Ssh-keygen -t rsa -f /etc/dropbear/auth/ssh_rsa Now let's create the keys using these commands: ssh-keygen -t ecdsa -f /etc/dropbear/auth/ssh_ecdsa Now we have to create the folder /etc/dropbear/auth and to generate the required keys.Ĭreate the folder: mkdir /etc/dropbear/auth Open the configuration by typing this command: vim /etc//nfĮnter Insert mode, click the button i and paste this content: dropbear_ecdsa_key="/etc/dropbear/auth/ssh_ecdsa"ĭropbear_rsa_key="/etc/dropbear/auth/ssh_rsa"ĭropbear_acl="/root/.ssh/authorized_keys"
#DROPBEAR SSH ENCRYPTED SYSTEM PASSWORD#
The password authentication method is not supported. You will enter your server (before it is decrypted) via SSH, and the supported authentication method is only SSH Key-based. We will have to edit the dropbear ssh server configuration and to specify where our SSH keys are stored. Regenerate your GRUB config: grub2-mkconfig -output /etc/grub2.cfg Save the file by pressing Esc and typing :x. The line ( in our case) looks like this: GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=centos/root rd.luks.uuid=luks-d0f3dff8-22c5-4aa3-a7a5-316f4ad3e56d rd.lvm.lv=centos/swap rhgb quiet rd.neednet=1 ip=dhcp"
Open the grub file: vim /etc/default/grubĮnter Insert mode, click the button i and append rd.neednet=1 ip=dhcp to the end of the line GRUB_CMDLINE_LINUX. For this tutorial, we will use the editor vim. Once you have installed dracut, we have to edit the grub file. Wget -O /etc//rbu-dracut-crypt-ssh-epel-7.repo
#DROPBEAR SSH ENCRYPTED SYSTEM INSTALL#
The first thing we need to do is to download dracut-crypt-ssh app using these commands: yum -y install epel-release wget vim If you prefer to enter the passphrase of your server via VNC every time, you can skip this step. This application uses the dropbear SSH server. We would suggest you installing this module because it removes the inconvenience of rebooting your VPS. This module allows you to decrypt your machine remotely via SSH. Installing Dracut-Crypt-SSH in order to decrypt your machine via SSH We have a solution to this inconvenience. SSH would not work before you enter the passphrase. NOTICE: Every time you reboot your machine, you will have to enter your server via VNC and to enter the passphrase in order to decrypt your server.
#DROPBEAR SSH ENCRYPTED SYSTEM ISO#
NOTICE: Do not forget to switch the boot order to 1) Hard Disk 2) CD Drive in the Virtualizor and Select ISO to None after the installation is completed. After this step, you will have a clean installation of encrypted CentOS 7.