How to turn off the logging done by the ASP.NET core framework

Question

How do I turn off the logging done by ASP.NET for each request e.g.

INFO 09:38:41 User profile is available. Using 'C:\Users\xxxx xxxx\AppData\Local\ASP.NET\DataProtection-Keys' as key repository and Windows DPAPI to encrypt keys at rest.
DEBUG 09:38:41 Hosting starting
DEBUG 09:38:41 Hosting started
INFO 09:38:41 Request starting HTTP/1.1 GET http://localhost:23369/
INFO 09:38:41 Request starting HTTP/1.1 DEBUG http://localhost:23369/ text/html DEBUG 09:38:41 DEBUG requests are not supported
DEBUG 09:38:41 The request path / does not match a supported file type
DEBUG 09:38:41 Request successfully matched the route with name 'default' and template '{controller=Home}/{action=Index}/{id?}'. DEBUG 09:38:41 Request successfully matched the route with name 'default' and template '{controller=Home}/{action=Index}/{id?}'. DEBUG 09:38:41 Executing action Forums.Controllers.HomeController.Index
DEBUG 09:38:41 Executing action Forums.Controllers.HomeController.Index
INFO 09:38:41 Executing action method Forums.Controllers.HomeController.Index with arguments () - ModelState is Valid'
INFO 09:38:41 Executing action method Forums.Controllers.HomeController.Index
..

I couldn't find yet how I can turn this logging off...

This is my Configure method in the Startup class:

public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory) {     loggerFactory.AddProvider(new Log4NetProvider());      if (env.IsDevelopment())     {         app.UseBrowserLink();         app.UseDeveloperExceptionPage();         app.UseDatabaseErrorPage();     }     else     {         app.UseExceptionHandler("/Home/Error");          // For more details on creating database during deployment see http://go.microsoft.com/fwlink/?LinkID=615859         try         {             using (var serviceScope = app.ApplicationServices.GetRequiredService<IServiceScopeFactory>()                 .CreateScope())             {                 serviceScope.ServiceProvider.GetService<ApplicationDbContext>()                      .Database.Migrate();             }         }         catch { }     }      app.UseIISPlatformHandler(options => options.AuthenticationDescriptions.Clear());      app.UseStaticFiles();      app.UseIdentity();      // To configure external authentication please see http://go.microsoft.com/fwlink/?LinkID=532715      app.UseMvc(routes =>     {         routes.MapRoute(             name: "default",             template: "{controller=Home}/{action=Index}/{id?}");     }); } 

And this is my project.json file:

"dependencies": {   "EntityFramework.Commands": "7.0.0-rc1-final",   "EntityFramework.MicrosoftSqlServer": "7.0.0-rc1-final",   "log4net": "2.0.5",   "Microsoft.AspNet.Authentication.Cookies": "1.0.0-rc1-final",   "Microsoft.AspNet.Diagnostics.Entity": "7.0.0-rc1-final",   "Microsoft.AspNet.Identity.EntityFramework": "3.0.0-rc1-final",   "Microsoft.AspNet.IISPlatformHandler": "1.0.0-rc1-final",   "Microsoft.AspNet.Mvc": "6.0.0-rc1-final",   "Microsoft.AspNet.Mvc.TagHelpers": "6.0.0-rc1-final",   "Microsoft.AspNet.Server.Kestrel": "1.0.0-rc1-final",   "Microsoft.AspNet.StaticFiles": "1.0.0-rc1-final",   "Microsoft.AspNet.Tooling.Razor": "1.0.0-rc1-final",   "Microsoft.Extensions.CodeGenerators.Mvc": "1.0.0-rc1-final",   "Microsoft.Extensions.Configuration.FileProviderExtensions": "1.0.0-rc1-final",   "Microsoft.Extensions.Configuration.Json": "1.0.0-rc1-final",   "Microsoft.Extensions.Configuration.UserSecrets": "1.0.0-rc1-final",   "Microsoft.Extensions.Logging": "1.0.0-rc1-final",   "Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.0.0-rc1-final" },  "commands": {   "web": "Microsoft.AspNet.Server.Kestrel",   "ef": "EntityFramework.Commands" },  "frameworks": {   "dnx451": { } }, 

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Update:
My log4net provider was taken from here

Answer 1

I'm not sure if I am missing something but don't you just want to raise the log level for the Microsoft logs?

Edit appsettings.json (assumes .AddJsonFile("appsettings.json", ...))

{   "Logging": {     "IncludeScopes": false,     "LogLevel": {       "Default": "Trace",       "System": "Information",       "Microsoft": "Information" 

To

{   "Logging": {     "IncludeScopes": false,     "LogLevel": {       "Default": "Trace",       "System": "Information",       "Microsoft": "None" 

Or the same modification via environment variables (assumes .AddEnvironmentVariables())

Logging:LogLevel:Microsoft=None 

You can also be more specific, the following reduces most entries but leaves Microsoft.AspNetCore.Hosting.Internal.WebHost at Information.

"Microsoft": "Information",   "Microsoft.AspNetCore.Mvc.Internal": "Warning", "Microsoft.AspNetCore.Authentication":  "Warning" 

Appologies if this doesn't work for log4net

Answer 2

What have really worked for me was adding this in ASP.NET Core 2.0 project's Startup.cs file:

using Microsoft.Extensions.Logging; public void ConfigureServices(IServiceCollection services) {     .     .     .      services.AddLogging(     builder =>     {         builder.AddFilter("Microsoft", LogLevel.Warning)                .AddFilter("System", LogLevel.Warning)                .AddFilter("NToastNotify", LogLevel.Warning)                .AddConsole();     }); } 

This way you'll only get Warning level logs for logging info starting with the filters passed to builder.AddFilter.

My log4net.log file now doesn't show that huge amount of INFO logging spit by Microsoft and others.

More info here @ Microsoft Docs: Log filtering