DotNetNuke and Error Logging

Question

Does DotNetNuke provide any built in Error Logging framework? My client is using DotNetNuke and I don't see a global error logging framework. I see the class below with some try/catch's using them.

namespace DotNetNuke.Services.Exceptions
{
    [StandardModule]
    public sealed class Exceptions
    {
        public static ExceptionInfo GetExceptionInfo(Exception e);
        public static void LogException(Exception exc);
        public static void LogException(ModuleLoadException exc);
        public static void LogException(PageLoadException exc);
        public static void LogException(SchedulerException exc);
        public static void LogException(SecurityException exc);
        public static void LogSearchException(SearchException exc);
        public static void ProcessModuleLoadException(Control ctrl, Exception exc);
        public static void ProcessModuleLoadException(PortalModuleBase objPortalModuleBase, Exception exc);
        public static void ProcessModuleLoadException(Control ctrl, Exception exc, bool DisplayErrorMessage);
        public static void ProcessModuleLoadException(PortalModuleBase objPortalModuleBase, Exception exc, bool DisplayErrorMessage);
        public static void ProcessModuleLoadException(string FriendlyMessage, Control ctrl, Exception exc);
        public static void ProcessModuleLoadException(string FriendlyMessage, Control ctrl, Exception exc, bool DisplayErrorMessage);
        public static void ProcessModuleLoadException(string FriendlyMessage, PortalModuleBase objPortalModuleBase, Exception exc, bool DisplayErrorMessage);
        public static void ProcessPageLoadException(Exception exc);
        public static void ProcessPageLoadException(Exception exc, string URL);
        public static void ProcessSchedulerException(Exception exc);
    }
}

Answer 1

DNN includes log4net, see this wiki article: http://dnnsoftware.com/Wiki/Page/log4net-In-DotNetNuke