To install lighttpd on debian just simply run

apt-get install lighttpd php5-cgi php5-ldap php5-mhash

and edit your php.ini to change cgi.force_redirect to 0

nano /etc/php5/cgi/php.ini

Come down and you'll find ;cgi.force_redirect = 1 and change it to cgi.force_redirect = 0
Now we need to edit lighttpd.conf

nano /etc/lighttpd/lighttpd.conf

Add the following lines

fastcgi.server = ( ".php" =>
                        (
                                (
                                        "bin-path" => "/usr/bin/php-cgi",
                                        "socket" => "/tmp/php.socket",
                                        "max-procs" => 20,
                                        "bin-environment" =>
                                        (
                                                "PHP_FCGI_CHILDREN" => "2",
                                                "PHP_FCGI_MAX_REQUESTS" => "10000"
                                        ),

                                )
                        ),
                    ".phps" =>
                        (
                                (
                                        "bin-path" => "/usr/bin/php-cgi --syntax-highlight",
                                        "socket" => "/tmp/phps.socket",
                                        "max-procs" => 1,
					"check-local"       => "disable"
                                )
                        )

                 )

and then under server.modules = ( add mod_fastcgi
and then finally restart your httpd

/etc/init.d/lighttpd restart

To spoof your speedtest.net result you'll need to grab speedtest.net mini you can download this from their website at http://speedtest.net/mini.php or you can just use wget to download it straight onto your server like I did in the tutorial

wget http://files.speedtest.ookla.com/releases/mini.zip

Extract mini.zip to your html dir, by default this is /var/www

mv mini.zip /var/www;cd /var/www; unzip mini.zip

Find out the IP address of the speedtest.net server to do this just simply run a speedtest and you will see it say something like Transferring data from host
for me the host was speedtest.airwire.ie and to get the IP address we just ping the host. After finding the IP address you need to add a virtual interface on your httpd server with this IP to do so run the following, where xxx.xxx.xxx.xxx is the IP of the speedtest.net server

ifconfig eth0:0 xxx.xxx.xxx.xxx netmask 255.255.255.0

Then lastly we need to add a secondary IP address on your windows workstation so it can access the httpd server to do so go into your network connections right click on your networking interface click on properties select internet protocol version 4 and press properties click advanced and under IP addresses click add. Add an IP address that is in the same range as the speedtest.net server.

You should now be able to go to speedtest.net select the server you spoofed and get high speeds.

1. Open regedit Start -> Search -> regedit
2. Navigate to the following registry key:
   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\tcpip6\Parameters\
3. Create a DWORD value named DisabledComponents, please note this is case-sensitive
4. Edit the DisabledComponents value and set it to 20

   

5. Restart the computer for changes to take effect.

An alternative way off doing this would be to just to import a .reg file containing the following

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters]
"DisabledComponents"=dword:00000020

You will need the following

• USB Flash Drive
• Windows 7 CD or ISO
• A Computer with a CD-ROM copy the installation files of the CD

1. Connect your USB flash drive
2. Open Computer, right click on your flash drive and select format. Proceed to format the drive using the settings below

   

3. Copy all the files from your Windows 7 CD or ISO onto the flash drive
4. Lastly, we need to install a bootsector on the flash drive to do so go to Start -> Search -> CMD. The command prompt window shall pop up, Change to the directory of your flash drive by typing its assigned letter e.g F:
   Run the following command, where f: is the letter of your flash drive

   boot\bootsect /nt60 f:

5. Your now finished, If you boot from the flash drive it will boot into the Windows 7 installation as normal

Bash Functions

A fork bomb is really just a bash function, below is an example of a bash function

helloworld() {
echo hello world
};

A fork bomb would be

:(){
 :|:&
};:

Now to explain.
:(){ - Creates the function
:|: - Next it call itself using recursion and pipes the output to another call of the function
& - Puts the function call in the background so child cannot die
}; - Terminate the function
: - Call (run) the function

If you would like a more human readable fork bomb it would be as follows

forkbomb(){
forkbomb | forkbomb &
}; forkbomb

Preventing Fork Bombs

We can prevent users from running fork bombs by limiting the amount of processes they are allowed to run.
We can achive this using /etc/security/limits.conf

To get started open /etc/security/limits.conf

nano /etc/security/limits.conf

In my example I want to limit the user john to 300 processes and any users in the group of students to 250 processes. For this I would put the following into my config file

john hard nproc 300
@students hard nproc 250

Please keep in mind that KDE and Gnome desktop system can lanuch many processes.

1. Firstly remove gnome-audio

   sudo apt-get remove --purge gnome-audio

2. Remove all your old users gconf data related to system sounds

   sudo rm -rf /home/*/.gconf/desktop/gnome/sound

3. Install some needed packages

   sudo apt-get install libcanberra-gtk-module libcanberra-gtk0 libcanberra0 gnome-session-canberra build-essential fakeroot dpkg-dev intltool debhelper

4. Grab the source for freedesktop sound theme from git.debian.org

   wget -O freedesktop-sound-theme.tgz 'http://git.debian.org/?p=collab-maint/freedesktop-sound-theme.git;a=snapshot;h=c6773c0c08eeaab03c466dc015d36809dff537bf;sf=tgz'

5. Unpack and apply some small fixes

   tar xzf freedesktop-sound-theme.tgz
   cd freedesktop-sound-theme/debian
   sed -e 's:touch build:./configure --prefix=/usr \&\& $(MAKE) \&\& &:' rules > tmp; cp tmp rules
   sed -e 's:\*:&.ogg:' freedesktop-sound-theme.install > tmp; cp tmp freedesktop-sound-theme.install
   rm tmp
   cd ../

6. Build and install the package

   sudo dpkg-buildpackage -rfakeroot
   cd ../
   dpkg -i freedesktop-sound-theme_0.2-1_i386.deb

7. Invoke gnome-sound-property and configure 'system sound'

   gnome-sound-property
   then you can select 'system sound' tab

8. Finally reboot your system and you should be good to go