Hi @Daliang Qi (Accenture Japan Ltd)
Your message is too brief. Do you want to install and configure SSRS natively, or do you want to access the portal on another server? Please provide your details.
If it is native, you can refer to this link: https://learn.microsoft.com/en-us/sql/reporting-services/install-windows/reporting-services-configuration-manager-native-mode?view=sql-server-ver16.
If it is another server, make sure that you and the other servers are in the same domain or that the two domains trust each other, and then you need an administrator account to grant you the appropriate permissions. You can refer to these links:
If the answer is helpful, please click "Accept Answer" and upvote it. If you have any questions, please feel free to let me know.
Best regards,
Aniyia