In order to enable frequency slicing, all NITOS users are obligated to copy scheduler's public key to the authorized_keys file located in /root/.ssh folder at the image that they use to boot the nodes.
Just copy this line to the authorized_keys file. If the file does not exist, create it. Users that do not apply this change will be treated as malicius users. Save your image after that change so you do not have to do this every time you boot the nodes.
Note that the key should be in one line.
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCniP1UIbBAfa67C0ij0MeWbRCTzjjD7TQvR8Lovfu8sM+ZcCvKqie2kvIiFzcCidOqZknQfAf9Goo+dPGEHilJ/Ad/mmcG+GrwZ9DCLQ7NtQjzoSJNeDGuahFBtkF7/NmtjS5AxQnBsLeE2L3XM1ttUFWnz3rMrw9jmGrzqWBUDRkifc5tQZb5fkmFCfqTBfl/3fDhbeWRt3qsRCkEs6+0p+ZqRobgUht2aExv1eSUH8icYM1bXUzjSrDh2o5/kRG+4Maz4YuuKdhYO5U8jH4YVzUSoO4oj7U4f9YQSyDuQubhxXQbMlM1wwszJ9pKaLLilftcXl+V1Hxer4/eUpGX scheduler@nitlab