Get Hyper-V guest serial number with PowerShell
Learn how to get the Hyper-V guest virtual machine serial number with PowerShell, this is ideal for automated deployments with WDS or docs
Jan Reilink
Hi there, I'm Jan and this is my blog.
How to block BaiduSpider bot User-Agent?
The Baidu spider (BaiduSpider user agent) can be a real pain to block, especially since it does not respect a robots.txt as it should. This post shows you how to block Baidu Spider bot, using IIS URL Rewrite Module based on its User-Agent string.
How to enable HTTP Strict-Transport-Security (HSTS) on IIS
Set up HTTP Strict-Transport-Security (HSTS) response header in Windows Server IIS 10, here is some more technical information about HSTS in IIS, and other security headers...
Use authenticated SMTP over TLS encrypted connections, in PHP, ASP and ASP.NET
Send outgoing mail over authenticated SMTP using TLS, in PHP, ASP and ASP.NET. Send email securely from your website. Ready to use examples!
Tunnel RDP through SSH & PuTTY
Have you ever been in a situation where you needed to perform remote administration on a Windows Server, and the RDP port 3389 is blocked on a firewall? You can tunnel RDP over SSH with PuTTY
PowerShell Get-FsrmQuota and Set-FsrmQuota
To get and set File Server Resource Manager NTFS quota you now have to use PowerShell FileServerResourceManager cmdlets. It's pretty easy to get directory information with Get-FsrmQuota and change dirquota.exe using Set-FsrmQuota.
Set IIS Application Pool recycle defaults to Specific Times, not Regular Time Interval
By default, an IIS application pool (or "AppPool") recycles on a regular time interval of 1740 minutes, or 29 hours. One reason for this time interval is that application pools don't recycle at the same moment every day (every day at 07.00 for example).
Turn off swap
Learn how to turn off swap in Bash, because when a swap partition is enabled Linux starts swapping, which may degrade (MySQL) system performance
Software deployment through WDS
Here is how to install software packages during a Windows Deployment Services (WDS) deployment, without Microsoft Deployment Workbench (available in the Microsoft Deployment Toolkit, or MDT).
Find all files owned by a particular user using PowerShell
Sometimes you need to find all files owned by a specific user, recursively on your Windows Server NTFS file system. PowerShell has some neat cmdlets to automate this task for you and here is how.
Disk Cleanup in Windows Server
Over time, as your Windows Server runs longer, more and more disk space is eaten. Simply gone! Investigating the disk usage leaves you clueless; there are no large log files, crash dumps, or there is no software to be removed. Where did that space go?
Convert decimal to hex in Bash, hexadecimal to decimal and dates to Unix timestamp
Cconvert decimal to hex hexadecimal to decimal and Unix timestamps in Linux Bash. A quicky for my archives.
Conditionally start Application Pools on remote IIS web servers
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.
Huge increase in WordPress xmlrpc.php POST requests
How to identify, block, mitigate and leverage xmlrpc.php scans, brute-force, and user enumeration attacks on WordPress sites... Secure WordPress xmlprc.php interface and reduce service disruption.
Remove IIS Server version HTTP Response Header
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, as shown below. In this post I'll show you how to remove HTTP response headers in Windows Server IIS. You don't want to give hackers too much information about your servers, right?.
8 Tips to improve Joomla performance
Learn how to speed-up Joomla performance on Windows Server IIS using these 8 simple, but important, tips. Add caching, gzip compression, set your sessions & optimize MySQL database functions.
Delete all MAILER-DAEMON emails in Postfix queue
How to delete all MAILER-DAEMON emails from your Postfix queue, when it matches a sender or recipient email address condition. In Postfix, there are various similar commands to delete messages from the Postfix mail queue, based on the Message-ID and/or email address for example...
How to install the Web-WebSockets feature in IIS using PowerShell
Easily enable support for the WebSocket protocol on Windows Server IIS by installing the Web-WebSockets feature using PowerShell. Learn how to install WebSocket Protocol support in Windows Server IIS 8.0.
Test SMTP authentication and StartTLS
Investigate SMTP authentication issues like a boss! When using TLS encrypted SMTP connections, it's always handy if you are able to create a SMTP logon credentials and test SMTP authentication over a TLS/StartTLS connection. Preferably from your command-prompt.
Delete files recursively with ForFiles in Windows Server
The Forfiles command on Windows selects and executes a command on a file or set of files. Forfiles is ideal for batch processing through scripts, for instance on Windows Server systems. With Forfiles, you can run a command on or pass arguments to multiple files. For example, you could run the type or del command on all files in a tree with the .txt extension.