Your answer is to create a robots.txt file in the root of your web directory and to have the code setting given below in the file.

User-agent: * Disallow: /

You can read more about Robots exclusion protocol, here

Use the flag -p with virtualenv command to specify the python version that you would want to use $ virtualenv -p /usr/bin/python/2.7 For windows environment, use c:\> virtualenv --python=c:\Python27\python.exe myenv

Different projects in python may require different modules and its dependencies. Also, there may be a necessity that certain projects be run on newer/older python releases hence introducing version conflicts. Virtual environment is a tool that helps you manage these scenarios. To install virtualenv, use pip $ pip install virtualenv Now, create a virtual environment "myenv" $ virtualenv myenv To use the virtual environment, key in $ source myenv/bin/activate (if in windows, key in "myenv\Scripts\activate") The name of your virtual environment will appear on the left of the prompt (myenv) ...$ To exit out of the virtual environment, key in $ deactivate

Visudo is needed to make modifications to the sudoers file. In a fresh install of CentOS "sudoers" file is not normally found. To install visudo issue the command $ yum -y install sudo As a sys admin, you need to be careful when performing tasks with root privileges. To be cautious, you can create a new user and assign him with root privileges using "visudo" $ /usr/sbin/visudo # User privilege specification root ALL=(ALL) ALL test ALL=(ALL) ALL In the above file, test is a new user created with root privileges. In order for the "test" user to have root privileges, command "sudo" should be used. It prevents the user from issuing any commands that can cause system wide havoc and it also logs the command inside "/var/log/secure" for review

Changing host configuration $ vi /var/lib/pgsql/8.4/data/pg_hba.conf Add postgresql to startup process $ chkconfig postgresql-8.4 on Start postgresql service $ service postgresql-8.4 start Access postgresql $ su - postgresql $ psql Create database postgres-# create database test List databases postgres-# \list Exit postgresql postgres-# \q (or \quit) Connect to database postgres-# \c test (\connect test)

First lets do an update before we start installing PostgreSQL $ yum update You can install PostgreSQL from CentOS Base repo or can do a search for the latest version and install it based on your needs. Method 1 describes manual setup and Method 2 indicates an install from CentOS base repo (more…)