How to write a linux virus

After reading an interesting article about linux “viruses” (the comments are interersing, too), I decided to raise the alarm about the source of many security related issues
in today’s computers: the user.
The author talks about the many ways to compromise […] Continue Reading…

COOoder

This extension provides syntax highlighting features for OpenOffice.org. COOoder will be usefull for developers wanting to present code fragments in writer documents.
More info here: http://extensions.services.openoffice.org/project/coooder.

How to set up a VPN server on Ubuntu

Install PoPToP Point to Point Tunneling Server:
sudo apt-get install pptpd

Edit /etc/pptpd.conf file:
sudo joe /etc/pptpd.conf

Uncomment the following lines (replace IP range if you like)

localip 192.168.0.1
remoteip 192.168.1.1-255

Save and exit.

Edit /etc/ppp/pptpd-options file
sudo joe /etc/ppp/pptpd-options
Make sure you have this:

refuse-pap
refuse-chap
refuse-mschap
require-mschap-v2
require-mppe-128
proxyarp
nodefaultroute
lock
nobsdcomp
noipx […] Continue Reading…

Ctrl+Alt+Del to open System Monitor in Ubuntu

If you want to enable Ctrl+Alt+Del to open System Monitor you have to do this:

Go to System->Preferences->Keyboard Shortcuts and search for “Logout” action (that is under Desktop actions) and you will see that Ctrl+Alt+Del combination is associated to Logout […] Continue Reading…

UUID issue with new hard-drive

I just added a new hard-drive to my system. I created an ext3 partition and used vol_id and blkid to show the UUID. Based on that information, I edited the /etc/fstab file accordingly. When I try the sudo mount […] Continue Reading…

Install Nodoka (Fedora theme) on Ubuntu (II)

I was explaining here how to install Nodoka theme on Ubuntu.
Or you can use this small script I made to automate this.

PS: You need to have libsexy-dev installed. If not, just run this command in your terminal:
sudo apt-get –assume-yes […] Continue Reading…

Change the number of comments per page in admin interface of wordpress

Let’s have this situation:

You need to make a backup of your blog, you have access only in the admin interface of wordpress and you have 3000+ comments containing spam in the ‘awaiting moderation’ state. Do you spend your day […] Continue Reading…

Howto Change Ubuntu Forced fsck

In Ubuntu the boot hard disk is checked every 20 boots. I have to boot my laptop quite often, so about once a week booting takes more than 10 minutes. This clearly sucks. Fortunately, there is an easy way […] Continue Reading…

Install Flash in Songbird

If you have installed Songbird by hand, automatic instalation of flash will not work. Here’s a quick fix.

Under Windows:
Open Songbird and paste http://fpdownload.macromedia.com/get/flashplayer/xpi/current/flashplayer-win.xpi in the location bar at the top of the library or browser. Follow the installation process.

Under […] Continue Reading…

Cold Boot Attacks on Encryption Keys

Some guys at Princeton University published the results of their attacks on popular disk encryption systems (BitLocker, FileVault, dm-crypt, and TrueCrypt) using no special devices or materials.
Find out more about their research here and here.

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