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Never forget an OpenSSL command again. This comprehensive cheat sheet covers certificate conversion (PFX, PEM, DER), CSR generation, and remote SSL / TLS verification for Windows and Linux admins.
GNU/Linux, Web applications
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Take control of your server resources by learning how to block aggressive bots and unwanted search engines using .htaccess and mod_rewrite. This guide provides copy-paste ready configurations to prevent bandwidth theft, stop scrapers, and ensure that only relevant search engines crawl your website.
Umbraco
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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.
Umbraco
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Add a trailing slash to URL’s in Umbraco 8, using IIS URL Rewrite Module, without breaking the Umbraco backend. Forcing one particular URL avoids duplicate content, which is important for SEO.
Web applications
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Using WSL 2 it is pretty easy to install Hugo in Windows, setting up your local webdevelopment environment and configure Hugo to listen on your Ubuntu’s IP address, here is how.
Codebase
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MySQL Connector/NET and utf8mb4 character set can cause an exception System.Collections.Generic.KeyNotFoundException “The given key was not present in the dictionary”.
Windows Server
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A couple of years ago, I wrote a blog article about setting up Monit monitoring on an Ubuntu VM on Hyper-V. Now it’s time to do the same, but then in Windows Subsystem for Linux, or WSL. So, without further ado, here is how to install and configure Monit monitoring in Windows 10 WSL.
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Learn how to programmatically convert legacy Microsoft Access 2003 (.mdb) databases to the modern .accdb format using Classic ASP and the ACE engine. This guide provides essential scripts for performing online conversions and database maintenance directly on your IIS web server. It is an ideal solution for sysadmins managing legacy environments who need to upgrade data storage without local access to Microsoft Office.
Umbraco
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Umbraco 7 is a popular, ASP.NET powered, content management system (CMS). Out of the box Umbraco performs pretty well, but there are still some areas you need to tweak and tune for a more performant Umbraco website. Here are 11+ tips.
WordPress
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Gzip compress and serve WP-Super-Cache or Cache Enabler static HTML files, to supercharge your WordPress blog!
WordPress
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9+ Practical tips to optimize WordPress hosting – or for any other PHP web application for that matter. Learn optimizing your WordPress hosting
Windows Server
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The AppCmd.exe command is your one-stop-shop for administering Windows Server IIS web servers. In combination with WinRM it is your Swiss Army knife for your daily routine. This post introduces appcmd and provides you with a lot of helpful appcmd examples.
WordPress
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A web.config file for WordPress on Windows Server IIS. Are you having trouble with your web.config? Here is mine 🙂
Web applications
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A change in PHP’s default_charset php.ini setting causes HTML output to break if you try to set a different charset in your HTML head. It also might break functions like htmlentities() and htmlspecialchars().
Windows Server
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Easily setting up a monitoring service for websites and services using Monit on Ubuntu/Hyper-V, following these steps.
Windows Server
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In this article you’ll learn how to start all stopped application pools that have the ApplicationPool.AutoStart property set to $True using AppCmd.exe or PowerShell. This is something you often or occasionally have to perform on various servers, for example when an application pool hangs.
Useful
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A useful PHP script to check if your website is up and online available. It uses PHP and cURL. This script comes in handy because website uptime and availability is important, and you want your website to be always online available.
GNU/Linux
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Converting MyISAM tables to InnoDB for more database performance, because: 1) MyISAM is old and no longer developed, and 2) InnoDB is much faster.
Codebase
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The System.Net.Mail Namespace leaves out the required Message-ID header in email. Here is how you can add this important header to your email, to make sure email arrives.
Web applications
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PHP script to make your MySQL database smaller, leaner and faster by optimizing all tables with mysqli multi_query().