mirror of
https://github.com/kevingruesser/bootstrap-vz.git
synced 2025-08-22 18:00:35 +00:00
43 lines
1.5 KiB
Bash
43 lines
1.5 KiB
Bash
#!/bin/sh
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### BEGIN INIT INFO
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# Provides: generate-ssh-hostkeys
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# Required-Start: $local_fs
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# Required-Stop:
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# Should-Start:
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# Should-Stop:
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# Default-Start: S
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# Default-Stop:
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# Description-Short: Generate ssh host keys if they do not exist
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# Description: Generate ssh host keys if they do not exist.
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# This file was created by bootstrap-vz.
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# See https://github.com/andsens/bootstrap-vz/blob/master/LICENSE for
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# legal notices and disclaimers.
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### END INIT INFO
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prog=$(basename $0)
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logger="logger -t $prog"
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rsa_key="/etc/ssh/ssh_host_rsa_key"
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dsa_key="/etc/ssh/ssh_host_dsa_key"
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ecdsa_key="/etc/ssh/ssh_host_ecdsa_key"
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ed25519_key="/etc/ssh/ssh_host_ed25519_key"
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# Exit if the hostkeys already exist
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if [ -f $rsa_key -a -f $dsa_key -a -f $ecdsa_key -a -f $ed25519_key ]; then
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exit
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fi
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# Generate the ssh host keys
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[ -f $rsa_key ] || ssh-keygen -f $rsa_key -t rsa -C 'host' -N ''
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[ -f $dsa_key ] || ssh-keygen -f $dsa_key -t dsa -C 'host' -N ''
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[ -f $ecdsa_key ] || ssh-keygen -f $ecdsa_key -t ecdsa -C 'host' -N ''
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[ -f $ed25519_key ] || ssh-keygen -f $ed25519_key -t ed25519 -C 'host' -N ''
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# Output the public keys to the console
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# This allows user to get host keys securely through console log
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echo "-----BEGIN SSH HOST KEY FINGERPRINTS-----" | $logger
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ssh-keygen -l -f $rsa_key.pub | $logger
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ssh-keygen -l -f $dsa_key.pub | $logger
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ssh-keygen -l -f $ecdsa_key.pub | $logger
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ssh-keygen -l -f $ed25519_key.pub | $logger
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echo "------END SSH HOST KEY FINGERPRINTS------" | $logger
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