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An SSH services is enabled by default on SECO Northern Europe devices with Yocto. In addition to the password and user suggestions from [User permissions concept], there are more hints on securing the ssh service in the chapter [SSH service]. It is possible to restrict users allowed using this service, lock SFTP access to a subfolder only and create custom crypto keys.
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As described in [Deploying the Linux system to the target] booting into Flash-N-Go System can be triggered by pressing the bootmode switch or with the bootselect tool from the yocto OS.
The bootselect tool can only change the bootmode when called with root privileges, so following password and user suggestions from [User permissions concept] should solve this issue.
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Application security is seldom a high priority for embedded devices. But it is, of course, essential to take account of identifying risks in embedded applications. Since application development is a very complex subject and it is out of scope for SECO Northern Europe, we will refer to secondary lecture at this point.
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