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Template: base-installer/progress/fripost
Type: text
Description: ${WHAT}
Template: fripost/initrd-ssh-port
Type: string
Default: 22
Description: On which [address:]port should dropbear listen?
Extended_description: If port is a range (e.g., 1024-65535), a random
port in that range is chosen. Leaving the question empty is equivalent
to specifying the range of registered port 1024-49151. This is only
used for remote (SSH) unlocking of encrypted disks.
Template: fripost/dropbear-use-openssh-key
Type: boolean
Default: false
Description: Use the same key for dropbear and OpenSSH?
Extended_description: If False, generate a dedicated key for dropbear.
Template: fripost/activate-selinux
Type: boolean
Default: true
Description: Install and activate (in enforcing mode) SELinux?
Extended_description: Note that activating SELinux requires a dummy
reboot to label all files. So if you have full-disk encryption, you'll
have to send the password twice to dropbear.
Template: fripost/keep-media-directory
Type: boolean
Default: false
Description: Keep /media and its kids' entries in the fstab?
Extended_description: /media (and its related entries in the fstab)
can safely be removed on a headless server.
Template: fripost/sshd-fprs_title
Type: text
Description: Reboot in progress
Template: fripost/sshd-fprs_text
Type: note
Description: Press 'continue' to reboot on the new system
We are done! After rebooting you should be able to log in into your
new machine:
.
ssh ${USER}@${IPv4}
.
To defeat MiTM-attacks, please ensure (for instance by trying to log in
right now, although it won't be successful before the next reboot) that
the server's public key has the following fingerprint
.
${SSHFPR_SERVER}
.
To unlock the encrypted disk, you need to send the key to the SSH
daemon living in in the initrd:
.
ssh -p ${PORT} -T root@${IPv4} < /path/to/key
.
An attacker successfully mounting a MiTM-attack could get hold of the
encryption key! It is crucial that you match this (single purpose)
server's fingerprint against
.
${SSHFPR_INITRD}
.
Key(s) that are granted access to these two servers have the following
fingerprint:
.
${SSHFPR_AUTHORIZED}
Template: fripost/sshd-fprs-nodropbear_text
Type: note
Description: Press 'continue' to reboot on the new system
We are done! After rebooting you should be able to log in into your new
machine:
.
ssh ${USER}@${IPv4}
.
To defeat MiTM-attacks, please ensure (for instance by trying to log in
right now, although it won't be successful before the next reboot) that
the server's public key has the following fingerprint
.
${SSHFPR_SERVER}
.
Key(s) that are granted access to the server have the following
fingerprint:
.
${SSHFPR_AUTHORIZED}
Template: fripost/final-notice
Type: boolean
Default: true
Description: Display the final notice before rebooting?
Extended_description: It's good to show SSH fingerprints, because it
defeats MiTM-attacks.
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