Into the (open) source


Bcache: the advantage of having a layer between SSD and HDD in terms of speed


Ok, the truth is that these days are not very inspired with titles, unfortunately you will have to settle. Today we talk about speed and SSD / HDD. We will not make the usual benchmark to demonstrate the superiority in speed of solid state disk (it is a fact that it is faster), Instead we understand that it can be useful and economical to add a layer to take care of to communicate the two disks to speed up the process of burning the old HDD.


Exclude files and directories from indexing using the file “robots.txt”


Exist in the network of standards of behavior for crawler (the offered, or even spider) by theContent indexing. I am not referring to the file ".htaccess", that is used to configure the webserver, I'm talking about the file "robots.txt".

The file "robots.txt" is one of configuration file simple that there are, and unlike ".htaccess" should be placed uniquely only in directory radice Site. This file communicates to the search engines that index our site indexing or less determined file the directory, and the operation is very simple: