MyBB Community Forums

i want guests not to see forum contents but see topics and when they click they get redirected to login or signup page to continue and if this is possible  i want to for all my threads in my forum.
Thanks in advance 

Hello?

Go to your Admin CP

Click on Users & Groups Tab > click the Groups tab in the sidebar > Click on the Guest group > Forums and Posts
Under "Viewing Options" you'll see an option called "Can view threads", uncheck that box and save the changes.