Author Archives: Paul

PirateBox upgrade to Forban

Posted on by
Reply

I’m looking to upgrade my two pirate box to test the mesh network forban between the two. Apparently, this will slow down the device as the TP Link small devices are not so powerful, but i like the idea to be able to create mesh network between piratebox. In my point of view it is the right way to make this project real.

I actually have my two piratebox configured in version 0.5, i’ll firstly update them to the latest version, then add the Forban tool following Matthias’s materials.

I’ll upgrade my TP Link Mr3020 and TP Link MR3040.

Continue reading →

Valentine Day

Posted on by
Reply

valentine-2010

Idea of the day – automatic highway payment

Posted on by
Reply

The purpose to this idea is to save time at highway toll. Actually if you want to save time (at least in France) you need to have a specific and rented device detecting you and billing you. The current technology could allow the highway company to detect you car registration plate with a camera. This ID could be linked with a registration you have made online of different car you own and a credit card + a phone number.

Car would pass through the toll, be billed and this could be confirmed by an SMS sent to the user.

As a consequence, the system could be faster, not attached with a monthly payment and easier to manage (no hard device to move car to car, return, maintain …)

As all the idea in this category, feel free to comment, and develop, if you become rich with it … don’t forget to help me paying my house !

Search strings in a binary file

Posted on by
Reply

A simple way to get strings from a binary file on Linux, use the od command with -S option.

od -S 6 file.bin

will print all the strings with at least 6 printable chars

 

Understand Oracle Fusion Application topology

Posted on by
Reply

Oracle fusion application is based on a large group of components like weblogic servers, databases, identity modules and so one. I’ll try in this article to explain how they are used and for what purpose.

Continue reading →

WordPress can’t establish connection with DB

Posted on by
Reply

I just got an error message coming from wordpress saying on the index page that the connection to the database is not possible. I expected a problem in the connection chain but the real issue was related to a corrupted table in the database.

This as been fixed by repairing this table. So take care of the messages that can be wrong in the index page. The message in the admin index page was better concerning this point.

Restoring a grub2 bootloader broken

Posted on by
1

After I had to change a hard drive for another my linux Opensuse 12.2 grub bootloader was broken, here are some of the learning of this debugging phase :

– Restore grub to the new disk

– Start kernel manually

– Fix hard drive references

At the end, the process to recreate the bootloader and particularly to recreate the initrd file was broken, and I assume bugged. To really make it works, I had to update the whole Linux and again at the end of the process the booloader based on grub2 was impossible to execute. The solution was to select Grub (version 1) and it worked. I assume it was possible before update the whole distribution to use yast2 booloader and choose grub instead of grub2.

When you get a message like waiting for device … to apear at boot, it may be because of the initrd does not contain the right modules to access the hard drive. It appears when the motherboard has been changed.

This article is mostly notes taken during this debugging phase … so do not consider it as an howto but as a list of command and possible way to debug this kind of issues…

Continue reading →

Idea of the day – virtual local shopping platform

Posted on by
Reply

The purpose of this idea is to make a middle step between local physical shopping and Internet shopping. The problem of local & physical shopping is that you have to go to multiple place with your car to get advice and product, when you go to the shop you never sure to find what you are looking for, but if you find it, you can immediately get it.

On Internet shopping, it’s hard to get advice, you have to deal with technical description by yourself and depend on the product category it is more or less easy. Once you finally find a product you want, you need to wait at least half a week to get it.

The idea is to have a new type of on line shopping where you can easily discuss (vocally) with someone to find the right references regarding the type of need you have and your budget. The distant person providing you the advice would be able to show you the product by doing a kind of web conference where he will navigate through the shop website to show you the products. Then you would be able to place an order and to take your car to take it directly like a driving classical shop.

As all the idea in this category, feel free to comment, and develop, if you become rich with it … don’t forget to help me paying my house !