Author: Ryan

How to downgrade PHP version on Linux CentOS
Coding / Linux / Operating Systems / PHP / Servers & Services / Web

How to downgrade PHP version on Linux CentOS How to securely roll-back to a previous version and/or build of PHP - for example, from PHP 7.2 to PHP 7.1 - in a Linux CentOS machine

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PHP 7.2 release introduced many breaking changes that could prevent some of your application from working properly. Among the many backward-incompatible improvements, perhaps the most  crippling one is what they called …

How to downgrade PHP version on Linux CentOS How to securely roll-back to a previous version and/or build of PHP - for example, from PHP 7.2 to PHP 7.1 - in a Linux CentOS machine Read More
NextCloud 13 Login Page Redirect Loop - How to fix it
Linux / Operating Systems / Servers & Services / Web

NextCloud 13 Login Page Redirect Loop - How to fix it How to address a common issue of NextCloud Server, a great open-source file sync and share solution

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If you've never heard of NextCloud, do yourself a favor and fill that huge gap by taking a look here: in very short words, we're talking about an open-source File Sync …

NextCloud 13 Login Page Redirect Loop - How to fix it How to address a common issue of NextCloud Server, a great open-source file sync and share solution Read More
How to purge Nginx Proxy Cache in Linux CentOS
Linux / Operating Systems / Servers & Services / Web

How to purge Nginx Proxy Cache in Linux CentOS A list of useful methods provided by Nginx when used as a Reverse Proxy with caching features to selectively and/or globally invalidate its cache

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We already made a number of tutorials about Nginx, one of best web servers available for Linux - which can also be used as a reverse proxy, load balancer and HTTP …

How to purge Nginx Proxy Cache in Linux CentOS A list of useful methods provided by Nginx when used as a Reverse Proxy with caching features to selectively and/or globally invalidate its cache Read More
How to find out the number of CPU & Cores of your Linux machine
CPU & GPU / Linux / Operating Systems

How to find out the number of CPU & Cores of your Linux machine Some useful terminal commands to discover how many CPU, physical and logical cores are present in your Linux operating system

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Today I had to google a bit to discover how to find out how many CPU cores I had on one of my CentOS 7.x Virtual Machines. Luckily enough, I …

How to find out the number of CPU & Cores of your Linux machine Some useful terminal commands to discover how many CPU, physical and logical cores are present in your Linux operating system Read More
Wordpress - How to Fix Home Page Caching Issues by setting the Last-Modified response Header to the most recent post
Linux / Operating Systems / Servers & Services / Web

Nginx Reverse Proxy Cache for WordPress How to fine-tune Nginx used as a Reverse Proxy Cache server for a typical WordPress web site

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Some weeks ago we published a tutorial instructing how to use Nginx as a Reverse Proxy with buffering & cache functions using the standard edge-origin pattern. The configuration settings shown within …

Nginx Reverse Proxy Cache for WordPress How to fine-tune Nginx used as a Reverse Proxy Cache server for a typical WordPress web site Read More
SQL - The ntext data type cannot be selected as DISTINCT because it is not comparable - How to Fix
Coding / SQL

SQL - The ntext data type cannot be selected as DISTINCT because it is not comparable - How to Fix How to fix the "The ntext data type cannot be selected as DISTINCT because it is not comparable" error affecting MS SQL Server and other DBMS based on T-SQL

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If you've stumbled upon this post you're probably dealing with a SQL / T-SQL query which is either doing: a DISTINCT on a column having ntext data type. a JOIN with multiple …

SQL - The ntext data type cannot be selected as DISTINCT because it is not comparable - How to Fix How to fix the "The ntext data type cannot be selected as DISTINCT because it is not comparable" error affecting MS SQL Server and other DBMS based on T-SQL Read More
VMware Workstation - How to Shrink a Mac OS X .vmdk (Virtual Mounted Disk) File
Applications / macOS / Operating Systems / Software / Tools & Utilities / Windows

VMware Workstation - How to Shrink a Mac OS X .vmdk (Virtual Mounted Disk) File How to effectively reduce the file size of a Mac OS X .vmdk file in VMware Workstation 12+

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As most people probably notice, the .vmdk files created by VMware for Mac OS X Operating Systems tend to continuously grow as time passes by, getting bigger and bigger after …

VMware Workstation - How to Shrink a Mac OS X .vmdk (Virtual Mounted Disk) File How to effectively reduce the file size of a Mac OS X .vmdk file in VMware Workstation 12+ Read More
Wordpress - How to hide a Category from Front page, Archives, Feeds, Searches and Category Widget
Coding / PHP / SEO & Marketing / Web

WordPress - How to hide a Category from Front page, Archives, Feeds, Searches and Category Widget A great plugin to exclude a category from your WordPress Web Site... and a neat PHP script to deal with the Category Widget as well

- by Ryan - 2 Comments.

When dealing with a WordPress Web Site you might want to hide or exclude one or more Categories without actually deleting them: in other words, to prevent them from being …

WordPress - How to hide a Category from Front page, Archives, Feeds, Searches and Category Widget A great plugin to exclude a category from your WordPress Web Site... and a neat PHP script to deal with the Category Widget as well Read More
Wordpress - How to Fix Home Page Caching Issues by setting the Last-Modified response Header to the most recent post
Coding / PHP / Web

WordPress - How to Fix Home Page Caching Issues by setting the Last-Modified response Header to the most recent post An effective workaround to overcome a common WordPress problem that might cripple your SEO efforts

- by Ryan - 2 Comments.

If you're reading this, it probably means that you are experiencing an odd behaviour on your WordPress home page: you are often unable to see your most recent posts, as …

WordPress - How to Fix Home Page Caching Issues by setting the Last-Modified response Header to the most recent post An effective workaround to overcome a common WordPress problem that might cripple your SEO efforts Read More
HIYA - Come difendersi da telefonate indesiderate, chiamate spam, annunci e offerte commerciali
Android / Applications / Cyber Security / iOS / Operating Systems / SEO & Marketing / Software / Tools & Utilities

HIYA - How to protect your Mobile Device against unwanted phone calls, spam calls, announcements and commercial offers An innovative spam-filter for smartphones that blocks the caller through a configurable blacklist of unwanted numbers

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Telephone-based marketing has never been as intrusive as in these years, at least in Italy. The ineffectiveness of the controls of the Data Protection Authorities and the evident inability of …

HIYA - How to protect your Mobile Device against unwanted phone calls, spam calls, announcements and commercial offers An innovative spam-filter for smartphones that blocks the caller through a configurable blacklist of unwanted numbers Read More