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danschultz/regenerate_ssh_host_keys.service

Created March 15, 2023 06:00
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  1. danschultz created this gist Mar 15, 2023.
    14 changes: 14 additions & 0 deletions regenerate_ssh_host_keys.service
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    Original file line number Diff line number Diff line change
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    [Unit]
    Description=Regenerate SSH host keys
    Before=ssh.service
    ConditionFileIsExecutable=/usr/bin/ssh-keygen

    [Service]
    Type=oneshot
    ExecStartPre=-/bin/dd if=/dev/hwrng of=/dev/urandom count=1 bs=4096
    ExecStartPre=-/bin/sh -c "/bin/rm -f -v /etc/ssh/ssh_host_*_key*"
    ExecStart=/usr/bin/ssh-keygen -A -v
    ExecStartPost=/bin/systemctl disable regenerate_ssh_host_keys

    [Install]
    WantedBy=multi-user.target