Requirements

Ubuntu 10.04 32-bit or 64-bit server
2 GB of memory
5G of free disk space

Install BBB apt repository

wget http://ubuntu.bigbluebutton.org/bigbluebutton.asc -O- |  apt-key add -

echo 'deb http://ubuntu.bigbluebutton.org/lucid/ bigbluebutton-lucid main' | tee /etc/apt/sources.list.d/bigbluebutton.list

echo 'deb http://us.archive.ubuntu.com/ubuntu/ lucid multiverse' | tee -a /etc/apt/sources.list

Install Asterisk

apt-get update 
apt-get install bbb-voice-conference

Install BBB

apt-get install bigbluebutton

Restart service and check for any errors in configuration

bbb-conf --clean
bbb-conf --check

Access BBB at http://yourip
Make sure port 80 is not blocked by your server and no other service except nginx
is listening on port 80.

Create meeting rooms with BBB wordpress plugin

Add php support to nginx

apt-get install python-software-properties
add-apt-repository ppa:brianmercer/php
apt-get update
apt-get install php5-fpm

Edit /etc/php5/fpm/php5-fpm to include

listen = /var/run/php5-fpm.socket

Add the following line to /etc/nginx/sites-enabled/bigbluebutton

location ~ .php$ {
    fastcgi_split_path_info ^(.+\.php)(.*)$;
    fastcgi_pass   unix:/var/run/php5-fpm.socket;
    fastcgi_param  SCRIPT_FILENAME  /var/www/bigbluebutton-default$fastcgi_script_name;
    include /etc/nginx/fastcgi_params;
    fastcgi_index index.php;
  }

Restart nginx and php5-fpm

/etc/init.d/php5-fpm restart
/etc/init.d/nginx restart

Install wordpress

cd /usr/local/src
wget -c http://wordpress.org/latest.tgz
tar xzvf latest.tgz
mv latest /var/www/bigbluebutton-default/bbbwordpress
cd /var/www/bigbluebutton-default/bbbwordpress
cp wp-config-sample.php wp-config.php

Create mysql database for worpress
mysql -u root -p (enter your password, or if there is no password set,just type
mysql -u root)

create database bbbwordpress;

grant all privileges on *.bbbwordpress to bbbuser@localhost identified by 'yourpass';
exit;

Then edit wp-config.php

define('DB_NAME', 'bbbwordpress');
define('DB_USER', 'bbbuser');
define('DB_PASSWORD', 'yourpass');

Go to http://yourip/wordpress and set administrative user and password. Then login to the administrative
dashboard and click on the plugins in the left hand pane. In the ‘search plugin’ box, type “bigbluebutton”
and install/activate it.

To integrate it with BBB click on Appearance–>Widgets–>BigBlueButton and drag/drop it to the content area.
GO to Settings–> put the URL to your BBB link http://yourip/bigbluebutton and insert the salt from the
setting page.

Within the administrative wordpress dashboard you can create meetings and the passwords for participants/moderator.
You should be able to access the rooms in http://yourip/wordpress/.

Sources

http://code.google.com/p/bigbluebutton/wiki/InstallationUbuntu
http://cbanta.wordpress.com/2010/12/18/enable-php-on-bigbluebutton/
http://wordpress.org/extend/plugins/bigbluebutton/

Imperva (http://www.imperva.com ) isolated the four most prevalent Web application attacks:

1. Directory traversal = 37%
2. cross site scripting =36%
3. SQL injection =23%
4. Remote file include =4%

Sources:-
http://www.imperva.com/index.html
http://www.pcmag.com/article2/0,2817,2389117,00.asp

How to use ncftpget to copy directories from FTP server.

The old ftp command is not convenient for recursively copying directories from the command line. An alternative to the ftp command is the ncftpget.

1. Download ncftpget

a. RHEL/Fedora/CentOS

yum install ncftpget

b.Debian/Ubuntu

apt-get install ncftpget

2. Make sure you have the hostname, username and password of the ftp server, from which you want to download a bunch of directories. Let us say you want to copy /var/www/html in the ftp server to a local directory /home/user1/Desktop

ncftpget –u ftpusername -R -v ftp.example.com /home/user1/Desktop /var/www/html

You will be prompted for a password, once you entered the correct password, it will recursively(-R) download the files under /var/www/html to /home/user1/Desktop in a verbose(-v) mode – that is you will see the file transfer on your screen for each file.

The format is

ncftpget -u username -R -c hostname-of-ftp-server local-directory remote-directory

Of course it is recommended to use ftp as a last resort, otherwise you should use secure tools or protocols for security reasons. Recommended ones are sftp and scp.