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 services.Configure<IdentityOptions>(options=>{options.Lockout.DefaultLockoutTimeSpan=TimeSpan.FromMinutes(5);options.Lockout.MaxFailedAccessAttempts=3;options.Lockout.AllowedForNewUsers=true;});

            services.Configure<IdentityOptions>(options=>{options.Password.RequireDigit= true;options.Password.RequireLowercase= true;options.Password.RequireNonAlphanumeric= true;options.Password.RequireUppercase= true;options.Password.RequiredLength= 8;});