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ee910d1e67
At least Fedora and RHEL 9 set RSAMinSize=2048, so when trying to use
failsafe, we get 'Bad server host key: Invalid key length'
To workaround the issue, we can use: ssh -o RSAMinSize=1024 ...
Generating 2048 bits RSA is extremely slow, so add ed25519.
We keep RSA 1024 to be as compatible as possible.
Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>
(cherry picked from commit 6ac61dead9)
10 lines
322 B
Bash
Executable File
10 lines
322 B
Bash
Executable File
#!/bin/sh
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failsafe_dropbear () {
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dropbearkey -t rsa -s 1024 -f /tmp/dropbear_rsa_failsafe_host_key
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dropbearkey -t ed25519 -f /tmp/dropbear_ed25519_failsafe_host_key
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dropbear -r /tmp/dropbear_rsa_failsafe_host_key -r /tmp/dropbear_ed25519_failsafe_host_key <> /dev/null 2>&1
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}
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boot_hook_add failsafe failsafe_dropbear
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