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Enable Memcached on CentOS with Putty

Posted by Xaus Xavier Nadal 22nd on July 2013


Today we will see how step install step Memcached on CentOS, also will serve for newbies in the field for your hosting, we will in a very generic way and can be used on any virtual server (VPS) or dedicated server or even in your shared hosting.

We're going to do with putty for which we have previously set up an SSH connection from our web server. What will we do with root credentials (perhaps missing unto you these credentials) but if you have got them this is your step article.

After connecting with Putty we will ask the server a login and password, put the of your root.

The first thing we do is create a temporary directory with the mkdir command which will download memcache in its stable version in the example of 22 / 9 / 2012 2.2.7 version.

mkdir repo

repo cd

Now we will download from the Internet repository the latest stable with the following command version.


Memcached 1

As you see in the picture we have made a ls to see that the file has been downloaded on this route.

Megacrack read »

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Posted by web performance | No Comments »

Wayback Machine or pull back time on the Internet.

Posted by Xaus Xavier Nadal 31st on October 2012

The title of the article Wayback Machine or pull back time on the Internet seems something unreal, something futuristic, but in reality it can be done through a nonprofit entity that 10 petabytes of information in its possession makes it possible to pull the time we get back on the Internet can see a screenshot of any website since the beginning until today, the evolution of any site, any internet business, how it all started, as were the old static HTML formats as they have evolved to HTML 5.

Only you will have to access the following web and write your website The Wayback Machine and click on Take Me Back.

They have around 150 billion web pages archived from 1996 until a few weeks ago.

If you want more information you can read about it in the following link:

That is what the Big Data, To have the greatest amount of stored data and tools able to move this data and give customers a result of the search with very low latencies.

Here you can see the evolution of this blog:

Since its inception in 2008 549 and stored in a snapshot views the 25 2008 March.

Megacrack read »

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Posted by Big Data | No Comments »

Migration to faster server (got 100 / 100 web performance)

Posted by Xaus Xavier Nadal 3rd on May 2012


Today maybe for a while you've not been able to enter the blog, but the interruption was for the better.

Sorry I could not tell before but we had a core operating system upgrade of our hosting provider Bluehost.

This morning we received the following letter.

Dear Xavier,

We're pleased to inform you That the server hosting your website will be Undergoing a major software upgrade, from CentOS to CentOS 5 6, 48 Within the next hours.

This upgrade includes newer software packages (including Python, Perl and gcc), as well as all the security and performance benefits That eats 6 CentOS Along With. In Addition to this, the server will be redeployed with a different file system type Simultaneously, further increase increasing performance.

, Although a bulk of the upgrades to your server are being done online and functional With It, in order to safely finalize These Changes will need our Administrators to temporarily take your server offline in the early morning hours. Barring any extenuating circumstances esta outage last only About 2 Should hours.

Please note That while we do not anticipate your software-update post Having problems, it May be required to re-compile any module (s) you are using to take advantage of the newer included libraries. We Suggest reviewing your site afterward to verify it is That Functioning as it should.

If You have any questions or please do not hesitate Concerns to contact us.

The truth is I've done a performance test and finally have a First Byte Time de 506 ms. Bieeeeeeeeennn !!!!! Megacrack read »

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Posted by Improving Web Speed, web | 1 Comment »

Lock opening any pdf file via web

Posted by Alex Nalda 14th on December 2011

Good megacracks,

Today I found a curious thing. A user had problems opening a PDF via web. I mean, the user connects to a remote SAP system, from the browser. The appearance of the page is SAP and it is a mailbox that you get documents from other managers and / or departments of the company.

Problema: una vez ingresaba a la web y se mostraban los documentos, él le daba clic a «Mostrar documento» ( lo que hacía al pulsar sobre ese botón, era que se abría el pdf del documento ) y en principio se debía abrir el pdf del archivo en sí. Pues la cosa es que no se abría. El puntero del ratón se transformaba en una estrellita que en su interior se ubicaba un signo de exclamación en rojo.

When a file that you try to open via web does not respond, it is a browser plug that is blocking the opening thereof.
After testing by setting the safety of both Intranet and Internet browser, ActiveX, install the latest version of Adobe Flash Player, Java virtual machine, etc etc, it was still unopened. What is my surprise to find that it did not allow to open the file was a browser plug ....
This supplement is Google Toolbar, I disable it and voila ... opened the first.

Conclusion: whenever you may have problems opening files via web and you will lose seeking, COMPROBAD WELL browser plug-ins, solution that will take away enough headaches, without saying Google Toolbar.

Well I hope you like and if you have any questions do not hesitate to comment

Megacracks greetings and see you soon!

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Posted by General, Google, web | No Comments »

New author of Blog (Alex Nalda)

Posted by Xaus Xavier Nadal 14th on December 2011

Hi all / as.

We have among us a new team member will sign his articles Alex Nalda.

I tell you about it a bit different:

Microsoft Certified as MCITP Enterprise I love the world of technology.

He has extensive knowledge in CMS (Joomla, Drupal).
He is an expert in web technologies (Flash, ActionScript, PHP, Perl, CSS ...).
It is also present in the area Linux (Red Hat, Mandriva, Debian, Ubuntu, ...).

2 articles already written on this blog and I am sure that your articles will help you a lot and will be interesting for everyone (and I include myself in this all).

Welcome from our community and you keep working with us a long time.

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Posted by Writers, Ubuntu, web | No Comments »

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