How to install MySQL 5.7 on CentOS 7


MySQL is a relational database server with a great reputation for being fast, efficient, safe, stable, easy to use, multiplatform (GNU/Linux, * BSD, Windows,…) and well documented. The current MySQL development process is under Oracle's umbrella but the community version is released as free software and you can use under GPL terms.

Install and configure Apache HTTP server

Apache HTTPD

Apache HTTP is a general purpose web server, designed to achieve a balance between flexibility, portability and performance. Apache HTTP has a modular architecture which allows to extend the basic functionality by selecting a set of modules: the modules are compiled as Dynamic Shared Objects (DSO) and they may be enabled/disabled using the LoadModule directive.

Handle NTFS partitions in GNU/Linux

To handle NTFS partitions in GNU/Linux you should install the package ntfs-3g

Note: From April 2011 the ntfs-3g and ntfsprogs projects joined forces so now everything is in a single suite: ntfs-3g.

Most likely your distribution may already have installed the suite ntfs-3g else you can do it by exec


$ sudo apt-get install ntfs-3g


# yum install ntfs-3g

Find duplicated files in GNU/Linux

One of the easiest and safest ways to find duplicate files on GNU / Linux files is using the tool fdupes, fdupes find duplicate files comparing the file sizes, making a check MD5 followed by a byte to byte comparison.

Activate mod_filter in Apache on CentOS

When you install Apache HTTP on CentOS, mod_filter is not enabled by default then if you try to use some of its directives an error like this is raised: "Invalid command 'FilterDeclare', perhaps misspelled or defined by a module not included in the server configuration", so to resolve the above error is enough to add the following line to the httpd.conf.