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Windows Server
Test open TCP ports with PowerShell
2023-10-10
Learn how to use PowerShell Test-NetConnection to test if a TCP port is open
YubiKey support in OpenSSH for Windows 11
2022-08-14
Secure your Windows 11 environment by moving SSH private keys to hardware. Learn how to configure YubiKey FIDO2/U2F support in native OpenSSH, manage the ssh-agent, and eliminate file-based credential risks.
Retrieve SSH public key from Active Directory for SSH authentication
2021-10-29
Storing SSH public keys in Windows Server Active Directory gives you a single location where you manage public SSH keys instead of on numerous separate servers. This is easier than distributing and managing numerous unmanaged authorized_keys files across your network and servers.
Disallow direct access to PHP files in wp-content/uploads/
2020-03-16
Securing the WordPress uploads folder is important. In many hacked WordPress sites, a PHP backdoor is found within the WP_CONTENT_DIR/uploads directory. Often because this is the location where uploads are placed automatically. From the backdoor within wp-content/uploads other backdoors are uploaded to various locations, and scripts are injected with malware.
Removing phantom application folders from website configuration in IIS
2019-12-18
Remove application folders from the website configuration in IIS whose physical path on the filesystem was removed, using PowerShell
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
2019-10-18
MySQL Connector/NET and utf8mb4 character set can cause an exception System.Collections.Generic.KeyNotFoundException "The given key was not present in the dictionary".
SSL in WordPress: how to move WordPress to HTTPS? The definitive guide
2016-07-15
Move WordPress to HTTPS correctly. Learn the Site Health switch, database search and replace, IIS/Apache redirects, HSTS hardening, and OpenSSL verification.
Simple PowerShell introduction for Windows Server administration, automation and scripting
2016-04-28
Windows PowerShell is an important tool in Windows Server for administrators. You can use PowerShell for Windows Server administration, software installation, automation, and shell/command-prompt scripting.
Generate pseudorandom passwords with OpenSSL
2015-11-17
OpenSSL comes in handy when you need to generate passwords or random strings. For example for system accounts and services. In this short post I'll give you a quick example on how to generate random passwords with OpenSSL in Linux (Bash), Windows and PHP.
Software deployment through WDS
2015-03-04
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
2015-01-04
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.
Explicit Congestion Notification (ECN) slows down outbound connections
2014-12-03
ECN is an optional feature that may be used between two ECN-enabled endpoints when the underlying network infrastructure also supports it. Unfortunately, having one ECN Capability enabled endpoint may slow down outbound network connections to outdated network equipment.
.svc WCF web service returns 404 Not Found in IIS 8
2014-06-30
When the .svc web service handler doesn't work in IIS with ASP.NET 4.5 and returns a 404 Not Found error, you may need to add an extra handler to IIS. Read on...
Test SMTP authentication and StartTLS
2014-05-17
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.
Set or remove the read-only attribute assigned to files with PHP chmod
2014-04-27
Change file attributes with PHP chmod to make files read-only or normally accessible on Windows Server IIS.
Test MySQL database connectivity with MySql.Data.MySqlClient
2014-02-16
MySql.Data.MySqlClient ASP.NET test script
Add websites and application pools to IIS with PowerShell, in a for loop
2013-11-11
How to use PowerShell to add websites and application pools in IIS
Create your own PHP based Origin Pull CDN
2013-02-17
The advantage of having your website content hosted on a Content Delivery Network (CDN) is having your content distributed and stored across the Globe. Utilizing the network of the Content Delivery Network provider.