Question: adfs how to step by step?
Answer: Step 1: Install Active Directory Federation Services. ... 
Step 2: Request a certificate from a third-party CA for the Federation server name. ... 
Step 3: Configure ADFS. ... 
Step 4: Download Office 365 tools. ... 
Step 5: Add your domain to Office 365. ... 
Step 6: Connect ADFS to Office 365.