Archive for the ‘Linux’ Category

Share Internet Connection via Bluetooth on Ubuntu

December 5, 2017

I’m running Linux Ubuntu 14.04 on my laptop and I would like to share my internet connection via bluetooth.
What I am looking for is the following: (more…)


SOLVED : Install Matlab R2015a 64bit on Ubuntu

November 30, 2017

In order to do my research project, I need to install Matlab on my Ubuntu machine. So…here is step-by-step how to install Matlab R2015a (64 bit) on my Ubuntu 14.04 64 bit. (more…)

SOLVED : Bluetooth speaker in Ubuntu 14.04

November 6, 2017

I’m running Ubuntu 14.04 on my Asus S550C. I just bought a bluetooth speaker Anker SoundCore Mini. Then I try to connect my bluetooth speaker to my laptop. In fact they’re connected, but no sound comes out from my bluetooth speaker, I’m unable to reproduce any sound from this bluetooth speaker.

I stumble upon from some forums and websites, but did not solve that issue. (more…)

Instalasi WKHTMLTOPDF dan Permasalahannya

October 10, 2017

Untuk Anda yang menggunakan Odoo versi Community, seringkali memiliki kendala atau permasalahan pada tampilan pdf. Hal ini pada umumnya dikarenakan WKHTMLTOPDF pada sistem operasi Linux yang tidak kompatible dengan library bawaan Linux. (more…)

[SOLVED] fail2ban and denyhosts constantly ban me

March 22, 2014


Installing and using fail2ban is a great way to prevent attacks on SSH but I encountered an unusual problem with it: I sometimes got banned after frequent successful ssh logins. The reason was that I had public key authentication set up for another user on the same host and ssh was trying to use it for all the other accounts before prompting me for a password. The default fail2ban filters consider the “Failed publickey” error in the sshd log file at the same level with a failed password login hence the ban.

To change this behavior I had to edit /etc/fail2ban/filter.d/sshd.conf and change.

^%(__prefix_line)sFailed (?:password|publickey) for .* from (?: port \d*)?(?: ssh\d*)?$


^%(__prefix_line)sFailed password for .* from (?: port \d*)?(?: ssh\d*)?$

Solved : Problem and Step-by-Step Installing NS-2.34 On Ubuntu 12.04 LTS

July 11, 2012

A few days ago, I installed my new PC in my lab with Ubuntu 12.04 LTS. I used to work with Ubuntu 10.04 LTS, but now I want to try Ubuntu 12.04. For my research purpose, I need to install Network Simulation NS-2 on it. As usual everything is not that easy while you’re going to work with Open Source or freeware…hehehe. That’s the challenges in Open Source. I like it.


Sharing Internet Connection using ppp0

August 20, 2011

I have a usb modem with internet connection. And I need to share its connection to my PC Desktop. So, here is my experiment howto share internet connection via ppp0.

My laptop is using Ubuntu 11.04 with 2 connections: ppp0 and Eth0. My PC Desktop is connected to my laptop using cross-cable with Eth0. I use static IP address for both Eth0.
To share ppp0 connection, I just need install ‘firestarter’ in my laptop.

~$ sudo apt-get install firestarter

Then configure ‘firestarter’ to select the device which connected to internet and enabled the internet connection sharing.

Instalasi aplikasi pada Android Emulator Pada Ubuntu 10.4

August 20, 2011

Berikut ini adalah pengalaman saya dan Abdi Wahab ketika mencoba
instalasi Android Emulator pada Ubuntu 10.4. Maksud kami menginstall
Android emulator pada Ubuntu adalah untuk mencoba aplikasi SIPDROID
yang sedang kita kerjakan sebelum ditanam kedalam embedded device.


Nah…berikut adalah langkah-langkahnya (step-by-step)


Howto Install OpenSSL on Ubuntu Linux

May 19, 2011


According to,

“The OpenSSL Project is a collaborative effort to develop a robust, commercial–grade, full–featured, and Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library. The project is managed by a worldwide community of volunteers that use the Internet to communicate, plan, and develop the OpenSSL toolkit and its related documentation.


BonnMotion : A mobility scenario generation and analysis tool

May 12, 2011

Copyright © 2002-2011 University of Bonn
This software is distributed under the terms of the GNU General Public License which is included in the archive.

BonnMotion is a Java software which creates and analyses mobility scenarios. It is developed within the Communication Systems group at the Institute of Computer Science 4 of the University of Bonn, Germany, where it serves as a tool for the investigation of mobile ad hoc network characteristics. The scenarios can also be exported for the network simulators ns-2, ns-3, GloMoSim/QualNet, COOJA, MiXiM, and ONE. Several mobility models are supported, namely

  • the Random Waypoint model,
  • the Random Walk model,
  • the Gauss-Markov model,
  • the Manhattan Grid model,
  • the Reference Point Group Mobility model,
  • the Disaster Area model,
  • the Random Street model, and
  • further more.

For further information consult the documentation. For questions and feedback concerning BonnMotion, please subscribe to the BonnMotion mailing list.

For download BonnMotion, please visit here.