How to add TXT(SPF, DKIM) records for sub domain in Route 53 on Amazon

If you already followed this article and created a Route 53 record for your sub domain, that means we can proceed to add TXT records now. Please note that i assume that you use three different services for all this like Amazon for hosting, Godaddy/Name/NameCheap etc for domain, MailJet/SendGrid/ElasticEmail etc for emails send out.

12 Useful “df” Commands to Check Disk Space in Linux

1. Check File System Disk Space Usage

The “df” command displays the information of device name, total blocks, total disk space, used disk space, available disk space and mount points on a file system.

10 Useful du (Disk Usage) Commands to Find Disk Usage of Files and Directories

 

1. To find out the disk usage summary of a /home/tecmint directory tree and each of its sub directories. Enter the command as:

[root@tecmint]# du  /home/tecmint

40      /home/tecmint/downloads
4       /home/tecmint/.mozilla/plugins
4       /home/tecmint/.mozilla/extensions
12      /home/tecmint/.mozilla
12      /home/tecmint/.ssh
689112  /home/tecmint/Ubuntu-12.10
689360  /home/tecmint

The output of the above command displays the number of disk blocks in the /home/tecmintdirectory along with its sub-directories.

Fix "Could not open a connection to your authentication agent." when using ssh-add

If you're trying to add identities to the authentication agent using ssh-add you may get this error:

Could not open a connection to your authentication agent.

The reason as the error message suggests is, ssh-add don't know how to talk with the authentication agent.

The problem can be solved by setting SSH_AUTH_SOCK environment variable.

If you run ssh-agent you should get some output like this:

Using Google Translate API with PHP

The Definitive Guide To PHP's isset And empty

Source: http://kunststube.net/isset/

 

PHP has two very similar functions that are essential to writing good PHP applications, but whose purpose and exact function is rarely well explained: isset and empty. The PHP manual itself doesn't have a simple explanation that actually captures their essence and most posts written around the web seem to be missing some detail or other as well. This article attempts to fill that gap; and takes a broad sweep of related topics to do so.

Guide to programmatic node creation in Drupal 7

This amazing tutorial, I found it in this blog http://fooninja.net/2011/04/13/guide-to-programmatic-node-creation-in-dr...

-

Bigdata conferencia mejorando.me

Meanwhile proveedores - empresas - emprendedores

Típico chileno .... típco de los emprendedores..... típico de las empresas.... #Grande wokitoki

Cursos universitarios gratuitos de seguridad informática

Una de las disciplinas básicas para prácticamente cualquier profesional de la informática (y muchos aficionados) es la seguridad informática. Desde la protección de los datos de un ordenador hasta la seguridad de un sistema informático, prácticamente todos tenemos que tener unas ciertas nociones en esta materia.

Pages

ME DEDICO A APRENDER Y EMPRENDER PROYECTOS QUE APORTEN A MEJORAR LA WEB Y DESARROLLOS QUE INTERACTUEN CON AMBIENTES MOBILES.

Si puedo te puedo ayudar no dudes en escribirme.

CONTACTO