Windows Server
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IIS URL Rewrite Module “Rewrite Module error: Expression contains a repeat expression”
Fix for IIS URL Rewrite Module error “Rewrite Module error: Expression contains a repeat expression”
Jan Reilink
Windows Server
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Deny vulnerable WordPress plugins using Windows Server File Server Resource Manager’s File Screens
Using Windows Server File Server Resource Manager‘s File Screens you can block vulnerable WordPress plugins from being uploaded to your IIS web server. In the following example, you’ll learn how to block WP DB Backup plugin system-wide on Windows Server, read on…
GNU/Linux
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Install Elasticsearch on CentOS 6.7
How to install Elasticsearch on CentOS 6.7. Elasticsearch is a highly scalable open-source full-text search and analytics engine. It allows you to store, search, and analyze big volumes of data quickly and in near real time.
GNU/Linux
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Install Varnish Cache on CentOS 6.7
In this article I’ll show you how to install Varnish Cache on CentOS, version 6.7 in this case. Varnish is a web application accelerator also known as a caching HTTP reverse proxy. You install it in front of any server that speaks HTTP and configure it to cache the contents.
WordPress
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Minify WP-Super-Cache HTML cache files: WPSCMin a WP-Super-Cache plugin
The WordPress WP-Super-Cache cache plugin doesn’t minify HTML cache files, which I find a disadvantage. Knowing minify libraries, I went looking for an existing solution (why reinvent the wheel?), and found one: WPSCMin. Read on …
Windows Server
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Important Windows Maintenance – 7+ Tips
Regular maintenance of a Windows computer significantly improves performance and reliability. Manual execution of maintenance tasks complements the automatic maintenance already scheduled by Windows, giving users greater control over how system resources are managed and how repairs are conducted. This article explains how to use tools such as SFC, DISM, CHKDSK, and disk defragmentation.
Web applications
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Always_populate_raw_post_data setting in PHP 5.6 & Magento 2.0
How to fix upgrades to Magento 2.0 in PHP 5.6 and higher: PHP 7+.
Useful
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Generate pseudorandom passwords with OpenSSL
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.
Codebase
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PowerShell return value, exit code, or ErrorLevel equivalent
By verifying PowerShell exit code using the $? operator or $LASTEXITCODE is how you find out whether an external command was executed successfully in PowerShell. The operator $? contains True if the last operation succeeded and False otherwise.
Windows Server
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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
Windows Server
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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.
Web applications
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Optimize PHP OPcache configuration
Optimize PHP OPcache configuration and make it perform even better. After realpath_cache_size, the OPcache cache mechanism is the next important step to fine-tune. With just a few tweaks you tune OPcache to perform much better
WordPress
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My WordPress web.config
A web.config file for WordPress on Windows Server IIS. Are you having trouble with your web.config? Here is mine 🙂
Windows Server
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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…
Codebase
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Use authenticated SMTP over TLS encrypted connections, in PHP, ASP and ASP.NET
Send mail over authenticated SMTP using TLS, in PHP, ASP and ASP.NET. Send email securely from your website. Ready to use examples!
Windows Server
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Tunnel RDP through SSH & PuTTY
Tunnel Remote Desktop over SSH with 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 🙂
Windows Server
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Monitor Windows services with PowerShell
Schedule a PowerShell script to monitor local services in your Windows Server environment
Windows Server
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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.
Windows Server
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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).
Web applications
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PHP 5.6 default_charset change may break HTML output
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().