Articles

Image blur filter

Posted by Cătălin on Wed, 22 Mar 2017

How to apply a Gaussian blur to an image.

CSS The value of ‘radius’ defines the value of the standard deviation to the Gaussian function, or how many pixels on the screen blend into each other, so a larger value will create more blur. If...

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Encrypt files on OS X

Posted by Cătălin on Thu, 9 Mar 2017

Encrypt any files on OS X with openssl

Encrypt openssl enc -aes-256-cbc -e -in /Users/name/Desktop/file.pdf -out /Users/name/Desktop/file_encrypted.pdf Decrypt openssl enc -aes-256-cbc -d -in /Users/name/Desktop/file_encrypted.pdf -out...

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How to force HTTPS using the .htaccess file

Posted by Cătălin on Wed, 8 Feb 2017

How to force HTTPS using the .htaccess file using mod_rewrite.

RewriteEngine On RewriteCond %{SERVER_PORT} 80 RewriteRule ^(.*)$ https://www.example.com/$1 [R,L] To force a specific domain to use HTTPS, use the following lines of code in the .htaccess file...

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CentOS cleaning Yum cache

Posted by Cătălin on Wed, 8 Feb 2017

How to lean the cache of YUM on your CentOS?

yum clean packages Now remove any cached XML-based metadata yum clean metadata Remove any cached database files yum clean dbcache Following this you will want to clean all the files to confirm...

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Useful library repository

Posted by Cătălin on Thu, 26 Jan 2017

Useful CDN Javascript and CSS library repository

CDNJS* is a library repository which hosted on cloudflare.com. It’s freely available CDN for common Javascript and CSS libraries. Currently there are 2756 libraries, check it out at: https://cdnjs...

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Encrypt sensitive data with PHP

Posted by Cătălin on Sat, 7 Jan 2017

Encrypt sensitive data with PHP and MySQL

Class created with construct now add methods to encrypt and decrypt: class Encryption { const CIPHER = MCRYPT_RIJNDAEL_128; // Rijndael-128 is AES const MODE = MCRYPT_MODE_CBC; ...

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