UPN starting with "-" (dash-minus-hyphen) not allowed for Azure AD login for linux VM

[precubcr]

It seems that if your UPN has a "-" (hyphen, dash) at the beginning, Azure AD gets it right, but when trying to log into a Linux VM via Azure AD Credentials, it fails with an error "Bad character".

I reproduced this in my lab, and every time I try it it fails.

I tried to create a local account starting with a "-" but is not possible.

Seems that Linux will not accept it. I even tried the --badnames option and does not allow.

Therefore, I assume we should update the Docs to reflect that the UPN should not start with "-"

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Document Details

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• ID: 29a90500-fe23-5ae5-caad-9b897ed5ac6c
• Version Independent ID: 588d5bec-fcbe-75f9-5206-616746e61d5f
• Content: az ssh
• Content Source: latest/docs-ref-autogen/ssh.yml
• GitHub Login: @rloutlaw
• Microsoft Alias: routlaw

[yonzhan]

route to CXP team

[vthiebaut10]

This was fixed back in 2023. @yonzhan Could you close this issue?