This may be wellknown or simply deducible from the existing theorems, but I didn't find an answer in my set theory books:
Is there a model of $ZFC$ in which there are no $\kappa$Souslin trees where $\kappa$ is the first inaccessible cardinal?
This may be wellknown or simply deducible from the existing theorems, but I didn't find an answer in my set theory books: Is there a model of $ZFC$ in which there are no $\kappa$Souslin trees where $\kappa$ is the first inaccessible cardinal? 

