Use a centralized logging solution. When developing applications, it is essential to have a logging mechanism in place to track errors and debug issues. A centralized logging solution provides a single location to store and analyze logs from multiple sources, making it easier to identify and troubleshoot issues. This is particularly important in distributed systems, where logs may be generated from multiple servers and applications.

In .NET Core, there are several logging frameworks available, including Serilog, NLog, and log4net. These frameworks provide a range of features, including support for different log levels, structured logging, and log filtering. By using a centralized logging solution, developers can ensure that logs are consistent across the application and that they are stored securely and efficiently.

Here is an example of how to configure Serilog in a .NET Core application:

public static void Main(string[] args)
{
    Log.Logger = new LoggerConfiguration()
        .MinimumLevel.Debug()
        .WriteTo.Console()
        .WriteTo.File("logs\\myapp.log", rollingInterval: RollingInterval.Day)
        .CreateLogger();

    try
    {
        Log.Information("Starting up");
        CreateHostBuilder(args).Build().Run();
    }
    catch (Exception ex)
    {
        Log.Fatal(ex, "Application start-up failed");
    }
    finally
    {
        Log.CloseAndFlush();
    }
}

In this example, we are configuring Serilog to log messages with a minimum level of Debug to both the console and a file. We are also specifying that the log file should roll over daily. In the try block, we are logging an informational message to indicate that the application is starting up. In the catch block, we are logging a fatal message along with the exception that caused the application to fail. Finally, we are calling the CloseAndFlush method to ensure that any remaining log messages are written to the log file before the application exits.