It is designed as a replacement for standard OpenSSH for environments with low memory and processor resources, such as embedded systems.It is a core component of OpenWrt and other router distributions.It derives some parts from OpenSSH to handle BSD -style pseudo terminals.
It does not support SSH version 1 backwards-compatibility in order to save space and resources, and to avoid the inherent security vulnerabilities in SSH version 1. SCP is also implemented. FISH works in any case and is supported by Konqueror. Supports ECDSA hostkeys (requires new keys to be generated) and ECDH for setting up encryption keys. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. I found in my routers connected devices site, that the server has the ip 192.168.0.27 despite my configuration. ![]() That connects to dropbear but. Solved: Dropbear wants a passphrase for the key, which I do not have. Dropbear Ssh Key Password Authentication AndWith which dropbear drops to password authentication and wants the root password, that is not set. Where did I go wrong Also, is the syntax for the IP settings right because one guide says::eth0:off and the next says::etho:none. Turns out, I had copied the wrong private key to use with dropbear. But adding keys still doesnt work (i.e. Theres word you need to convert the public keys, that you want to add to etcinitramfs-toolsroot.sshauthorizedkeys to dropbears format, but I dont want to spend time searching how. They are not included in the initramfs directories but lsinitramfs -l bootinitrd.img-3.16.0-43-generic lists them as part of the image. Even if I add GRUBCMDLINELINUXDEFAULTip192.168.0.11::192.168.0.1:255.255.255.0::eth0:none to the grubconfig in etcdefaultgrub and update everything. The existing key there already is in opensshs public key file format. So adding other openssh-format keys shouldnt be a problem. I find it very strange to include this extra step, when it used to work with regular pubic keys. Second, the existing and working key that dropbear autogenerated and added to its authorizedkeys file is in openssh foramt so adding other openssh public keys shouldnt be a problem. Yet it is. I have no idea whats going wrong. Contemporary Debian dropbox packages create all the needed keys on the server at installation time, but the referenced tutorial is so old, that it mentions cases when the keys need to be manually created. The tutorial says that you could create on the server the host keys with. To be sure you put it in the right place, read the source file from usrshareinitramfs-toolshooksdropbear. I temporarily removed from knownhosts the keys for the regular OpenSSH service, connected using the command above (leaving out the -o parameter), got prompted if I trust the host-key, said yes, and got it appended to my known hosts. From there on, you need to move that last line to its own knownhosts (.sshknownhosts.initramfs in the example above). Provide details and share your research But avoid Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience. Not the answer youre looking for Browse other questions tagged server initramfs or ask your own question.
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