pavlos's blog

Create strong passwords

At a recent #ubuntu-us-az meeting, this url was posted as an easy way to generate a password. I kinda liked option 4 which uses perl, available in most Linux distros. Should you not have it, apt-get install perl will install it.


Measure your Internet Speed

Based on a recent Slashdot post, here's a simple way to measure your Internet speed. The project is on GitHub at, and to get the Python-based program, simply do this:

wget -O speedtest-cli
chmod +x speedtest-cli
Execute ./speedtest-cli --simple to get your results.
See ./speedtest-cli --help for details.

Flash your BIOS

Recently, I had to flash my laptop BIOS. It had a very old version, A13 and the latest version is A34. But my laptop is running ubuntu 14.04 and the dell site provides a windows exe, E6400A34.EXE. So, this is what I did:

1. I used a small usb drive I have, formatted it fat32
2. went to the DELL site, found the latest bios for my E6400 laptop and saved that file to the usb drive.
3. I d/l the sysresccd iso (about 435MB) from and burnt it to a CD.


I tend to be on #ubuntu to help others. Today, an interesting question
popped up, how do I clean the old linux images and headers?

Each linux image / header has its own dir in /usr/src/

Let's start, uname -a ... do NOT remove this image

Let's do a sudo apt-get update ... make sure it is clean

If, for some reason, you get errors, try sudo apt-get -f install (fix broken)

Let's get a list of all the images, dpkg -l | grep linux-image

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