Use Zabbix to monitor your web application and application pool’s .NET CLR Garbage Collected heap by utilizing WMI and PowerShell.
Posts and information related to ASP.NET, .NET Core, ASP.NET Core and the .NET Framework
How to optimize Umbraco 8 performance
Out of the box, Umbraco is a well built and pretty fast content management system. However, it is still important you perform some steps to further optimize Umbraco’s performance and loading speed. Here on Sysadmins of the North, I wrote about “11+ tips to optimize Umbraco CMS” earlier, and in this post I write about implementing them. On a just installed and running website.
How to fix System.Collections.Generic.KeyNotFoundException “The given key was not present in the dictionary” Exception with MySQL Connector/NET and utf8mb4 character set
An System.Collections.Generic.KeyNotFoundException “The given key was not present in the dictionary” can be the result of using a too old MySQL Connector/NET version in your ASP.NET web application.
ASP and ASP.NET connection string examples for Microsoft SQL Server and MySQL
This article provides you with a couple of ASP.NET to SQL Server connection string examples for ODBC and OLE DB. And as a bonus for ASP to SQL Server, MySQL, and SSL encrypted connections too.
MySQL Connector/ODBC C# test script
Whenever you need to test your ASP.NET connection to your MySQL database, using ODBC, you can use the following C# test script. Currently it uses MySQL ODBC 8.0 Unicode Driver, but you can easily change the version used. As a bonus it prints some connection information and it requires an SSL connection to your MySQL database (SslMode=REQUIRED).
How to: Determine which .NET Framework versions are installed
Users can install and run multiple .NET Framework versions on their computers. When you develop or deploy your app, you might need to know which .NET versions are installed on the user’s computer. To get an accurate list of the .NET Framework versions installed on a computer, you can view the registry or query the registry in code. Note that the .NET Framework consists of two main components, which are versioned separatel
Remove IIS Server version HTTP Response Header
Remove HTTP response headers in Windows Server IIS 10 and ASP.NET because Windows Server IIS loves to tell the world that a website runs on IIS. It does so with the Server header in the HTTP response. Here is how w to remove Server and other HTTP response headers in Windows Server IIS and ASP.NET. Using web.config files. You don’t want to give hackers too much information about your servers, heh? ;-)
How to: Test MySQL database connectivity in ASP.NET, PHP, ASP
Test MySQL database connectivity in ASP.NET, PHP, ASP; Simple MySQL connection test from your website with ASP.NET, PHP & classic ASP. Whenever you need a MySQL connectivity test from a website or server, it’s handy to have various test scripts nearby. Whether it is because you are setting up a new website or you have just installed a new server and are running your tests.
Configure SQLServer sessionState for Umbraco
Configure Umbraco for SQLServer sessionState storage, for your ASP.NET sessions. This post explains how to prepare your Umbraco website for a high performance web garden or web farm, and load balancing environments: Store your ASP.NET / Umbraco sessions out-of-process (OutProc). As opposed to the default in-process (inProc) sessions, where sessions are saved in the worker process. Create a high performing, fast loading Umbraco website.
Add (custom) headers to MailMessage class
How to add custom headers to System.Net.Mail? When sending an email using the MailMessage class (System.Net.Mail namespace) in an ASP.NET website, certain email headers like Message-ID are not always set. When a Message-ID header is missing, email might be blocked by the recipients SMTP server like Gmail. Therefore it is necessary to set such headers.
Target multiple ASP.NET versions with AppCmd.exe
You can address both x86 and x64 versions of .NET with AppCmd. When administering an IIS web server you frequently have to use AppCmd.exe to make configuration changes. Whether it is for a specific web site or server wide. Some think AppCmd is very limited. Target multiple ASP.NET versions with AppCmd!
Fix "Could not establish trust relationship for the SSL/TLS secure channel" error
Today one of our clients received a System.Net.WebException error on a newly deployed ASP.NET web application. Part of the exception was: “System.Net.WebException: The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel.”. Here is how we resolved that issue.
ASP.NET performance: what to keep in mind
(ASP).NET programmers have to keep certain rules in mind when developing high performance ASP.NET applications, and/or optimizing your existing ASP.NET website. A lot of information is available on this subject. In this post I’ll share some valuable posts, and I continue to update this post when I find something new. Posts about ASP.NET performance I frequently pass on to customers so they can improve their ASP.NET web applications.
How to send authenticated SMTP over a TLS encrypted connection, in PHP, ASP and ASP.NET?
Send authenticated SMTP over a TLS encrypted connection, in PHP, ASP and ASP.NET. If you want to send email securely from your website, this post is for you! In this post I’ll provide some script examples for ASP, PHP, and ASP.NET (C# / VB.Net – System.Net.Mail) that you can easily integrate and use to securely send email from your website.
MySQL Connector/NET and Entity Framework
How to let MySQL Connector/NET, ASP.NET and Entity Framework play nicely. Set up and check your Web.config website configuration