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habrok:migration:faq [2025/01/21 09:28] – camarocicohabrok:migration:faq [2025/03/14 15:20] (current) – [New server hostkey] Add link to Host Keys page pedro
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 To get around this, you can make sure you compile your program in the same system that it will run. For example: if you need to run your program on one of the ''himem'' nodes, then you can submit a job that compiles your program, and subsequent jobs that then use the resulting executables to run your program. Alternatively, you can start an interactive session on a node with the target CPU architecture and compile your code interactively there. For example, assuming you want to compile your program for the ''himem'' nodes you could do ''srun --time=01:00:00 --partition=himem --pty /bin/bash''. This will queue an interactive session lasting up to one hour on which you can compile your code. To get around this, you can make sure you compile your program in the same system that it will run. For example: if you need to run your program on one of the ''himem'' nodes, then you can submit a job that compiles your program, and subsequent jobs that then use the resulting executables to run your program. Alternatively, you can start an interactive session on a node with the target CPU architecture and compile your code interactively there. For example, assuming you want to compile your program for the ''himem'' nodes you could do ''srun --time=01:00:00 --partition=himem --pty /bin/bash''. This will queue an interactive session lasting up to one hour on which you can compile your code.
  
-==== New server hostkey (21/03/2024 & 15/07/2024 & 17/02/2025) ====+==== New server hostkey ====
  
-In order to bring Hábrók back online after the incident on 16/03/2024 we had to reinstall and reconfigure the login and interactive nodes. Because of this, these nodes now have new server host keys. This means that connecting to Hábrók results in (correct) warnings that these keys no longer match those that had been registered on your system when you connected for the first time. +In order to bring Hábrók back online after an incident we sometimes have to reinstall and reconfigure the login and interactive nodes. Because of this, these nodes will have new server host keys. This means that connecting to Hábrók results in (correct) warnings that these keys no longer match those that had been registered on your system when you connected for the first time. 
  
-On 15/07/2024 we had to reinstall the interactive nodes to fix a configuration issue. +Normally, checking the server hostkey ensures that you are not inadvertently connecting to a system posing as Hábrók (known as a man-in-the-middle attack) by warning you that you are actually connecting to another machine. You can safely ignore this check at if the key for the host you are connecting to is listed in [[habrok:additional_information:hostkey_fingerprints|]].
- +
-Normally, checking the server hostkey ensures that you are not inadvertently connecting to a system posing as Hábrók (known as a man-in-the-middle attack) by warning you that you are actually connecting to another machine. You can safely ignore this check at this time because Hábrók's host keys //have indeed changed// due to the reinstallation.+
  
 === MobaXterm === === MobaXterm ===