Stop search engines indexing your web

1 Theoretical possibility

1.1 /robots.txt - robots exclusion file

Create file /robots.txt:

User-agent: *
Disallow: /

Search Engine Support: Google, Yahoo, Bing, ...

1.2 Use page meta tags robots

<meta name="robots" content="noindex,nofollow" />

2 The only sure method

2.1 Password protected web - web server solution

Example for Apache server: httpd.apache.org/docs/2.0/programs/htpasswd.html

Create a file called .htpasswd:

user1:nbGwQ3aJkq3qE (e.g. user1:encrypt password1)

KxS Password Encrypter: www.kxs.net/support/htaccess_pw.html

Create a file .htaccess:

AuthName "Restricted Area"
AuthType Basic
AuthUserFile /mysite/.htpasswd
AuthGroupFile /dev/null
require valid-user

Upload .htpasswd (best) to the root or a non publically accessible directory on your server.
Upload .htaccess to the directory you wish to protect.

2.2 Password protected web - cms solution

Protected area for registered users dependent on a specific CMS.

2.3 Computers and Humans apart

Captcha: en.wikipedia.org/wiki/CAPTCHA

reCaptcha: recaptcha.net

Hidden tag: 15daysofjquery.com/safer-contact-forms-without-captchas/11/

Captcha alternatives: www.arraystudio.com/as-workshop/the-captcha-alternatives.html

Sources:


Detailed description of 6 methods to control what and how your content appears in search engines - 6 ways to stop Google and other search engines from indexing your site | Antezeta Web Marketing.

How To Optimize Your Web Site

How develop web page with best performance?

• Web Performance Best Practices.


• Best Practices for Speeding Up Your Web Site.


• Page Speed is an open-source Firefox/Firebug Add-on.

For web sites, speed may be feature #1. Users hate waiting, we get frustrated by buffering videos and pages that pop together as images slowly load. It’s a jarring (aka bad) user experience.

Time invested in site optimization is well worth it, so let’s dive in:

• 
  High Performance Web Pages - 20 new best practices (slideshare)


• Speed Up Your Javascript Load Time.


• How To Optimize Your Site With GZIP Compression.


• How To Optimize Your Site With HTTP Caching.

Video mapping the trend of visual art

Video mapping the trend of visual art that uses the projection of free space on any objects, such as facades or interiors of buildings. To realize the need for a strong projectors, the corresponding software and darkness, or at least dim. To prepare high-quality screening is required prior knowledge of the scene, are often created 3D models of space within the building or facade, to obtain a perfect fusion of light opera with a scene. The result then recalls the film sequence in which the real background blended with a virtual plot, such as the facade of the emerging individual bricks, in the windows are people and objects fly out, of the roof flowing waterfall, etc.

Generally, the main purpose of mapping the video projections which cooperate with the selected object and seek to dismantle the perception of the viewer's perspective. With projectors can fold and highlight jakkýkoliv shape, line or space. Everything becomes an illusion.

Projection on Buildings

Video mapping Object 3D

Regular Expression RegExp Tool

Regular expressions can be a pain. This tool is designed to help developers learn, practice, and compose regular expressions.

http://gethifi.com/regexp/

The HiFi RegExp tool is 100% JavaScript using jQuery.

How to resize a VMware Linux virtual disk?

On your host

resize the virtual device’s virtual disk (example for create 10GB disk).

command: vmware-vdiskmanager -x 10GB myvirtual.vmdk

On your virtual server

resize filesystem (example for default instalation of CentOS 5).

Check filesystem data

command: df -h

1. Add a new partition
   
   
   

   command: fdisk /dev/sda

   
   
   
   
   (p - print the partition table; n - add a new partition; t - change a partition's system id, e.g. 8e Linux LVM; w - write table to disk and exit)


2. Reboot
   
   
   

   command: reboot

   
   
   
   
   


3. Create physical volume
   
   
   

   command: pvcreate /dev/sda3

   
   
   
   
   


4. Extend volume group
   
   
   

   command: vgextend VolGroup00 /dev/sda3

   
   
   
   
   


5. Extend logical volume
   
   
   

   command: lvextend -l +100%free /dev/VolGroup00/LogVol00 /dev/sda3

   
   
   
   
   


6. Resize filesystem
   
   
   

   command: resize2fs /dev/VolGroup00/LogVol00

   
   
   
   
   

Check filesystem data

command: df -h