WordPress
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Display Commas in WordPress tags
How to display commas in WordPress tags? And why have commas in WP taxonomies?
Jan Reilink
WordPress
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How to string replace on all WordPress posts in MySQL
Bulk edit content in your WordPress MySQL database with the MySQL REPLACE() and REGEXP_REPLACE() string functions.
Windows Server
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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 $True using AppCmd.exe or PowerShell. This is something you often or occasionally have to perform on various servers, for example when an application pool hangs.
Useful
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Check website availability with PHP and cURL
A useful PHP script to check if your website is up and online available. It uses PHP and cURL. This script comes in handy because website uptime and availability is important, and you want your website to be always online available.
Web applications
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Exploit PHP's mail() to get remote code execution
Exploit PHP's mail() function for remote code execution. Apparently, if you are able to control the 5th parameter of the mail() function ($options), you have the opportunity to execute arbitrary commands.
Web applications
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Custom PHP version on IIS Express and WebMatrix 3
Outdated but fun: PHP 7 with OPcache in IIS Express for Microsoft WebMatrix 3: create your DevOps with Microsoft WebMatrix and IIS Express
Security
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Increase in SQL injection attacks
Summer vacation's over? In August 2014 I noticed a huge increase in SQL injection attacks on various websites. These are their characteristics.
Security
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MySQL sleep() attacks
How not validating PHP user input leads to MySQL sleep() injection attacks that hang your database server, and how to fix and clean it up.
WordPress
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Send authenticated SMTP email over TLS from WordPress
Learn how to override wp-mail() and send secure email using authenticated SMTP and StartTLS from WordPress.
Windows Server
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Magento maintenance script for IIS
A Magento maintenance script for Windows Server and IIS: clear Magento's MySQL log tables and var cache directories on a schedule for a faster webshop.
Windows Server
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Mod_evasive on IIS
Website DDoS protection with mod_evasive on Windows Server IIS, using Helicon Ape: how to configure it, exclude websites, and where it falls short.
WordPress
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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.
Windows Server
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Remove IIS Server version from HTTP response headers
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?.
Windows Server
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.svc WCF web service returns 404 Not Found in IIS 8
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...
Web applications
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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.
GNU/Linux
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MySQL database optimization with indices
MySQL indexes (indices) are important. Why? Because they speed up the process for MySQL to find requested information.
Web applications
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Send email with Ghost using SMTP authentication and TLS encryption
Ghost Publishing platform uses Nodemailer to send email with Node.js. It can send email using SMTP, sendmail or Amazon SES and is unicode friendly.
GNU/Linux
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Convert MySQL MyISAM tables to InnoDB
Converting MyISAM tables to InnoDB for more database performance, because: 1) MyISAM is old and no longer developed, and 2) InnoDB is much faster.
WordPress
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Export and migrate WordPress to Ghost
I wanted to migrate from WordPress to Ghost, and at first failed. Here's the write-up: exporting WordPress to JSON and fixing Ghost's import errors.
Web applications
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How to flush MySQL query cache from time to time
Flush the MySQL or MariaDB query cache to defragment its free memory, manually on the MySQL shell or automatically through a Linux cronjob.