Category: Ubuntu

psql: FATAL: password authentication failed for user – error in Postgresql

Hi all, I am writing after a long time. This will be a short post on the error we get in postgresql. The error is : psql: FATAL:¬† password authentication failed for user “username”. The following code snippet shows the

Posted in Postgres, Ubuntu 12.04 LTS Tagged with: , , , , , , ,

How to enable hibernate in ubuntu 12.04

Hi all, The hibernate menu is disabled by default in ubuntu 12.04 due to some reasons like it din’t work in many computers. So you can re-enable it in ubuntu 12.04. Here is how you can enable hibernate in ubuntu

Posted in Ubuntu Tagged with: , , , , , , , , , , , , , , ,

How to enable java applet in the browser

Hi all, Sometimes we find that java applet is not working on our browser even if we have java installed on our machine. So, let us see how to enable java applet in the browser like firefox or chrome in

Posted in Java, Ubuntu Tagged with: , , , , , , , , , , ,

How to extract tar.xz file

Hello all, I was trying to extract tar.xz file in Ubuntu recently and was getting errors. The “Right click” –> “Extract” too din’t work. I assumed that as it was tar file it should have the capability to extract this

Posted in Linux, Ubuntu, xz Tagged with: , , , , , , , , , , , , , , , , , , ,

How to enable ssh to VirtualBox guest Ubuntu

I recently installed Ubuntu Server 12.04 on Oracle VirtualBox and needed to connect to it using ssh. But was wondering how to access my ubuntu server guest from my ubuntu host (yes, I am using ubuntu as host too.) and

Posted in Ubuntu, Virtualbox Tagged with: , , , , , , , , , , , ,

Execute .sql file from command line in postgresql

Hi all, Every now and then we have/want to run a .sql file or sql script from command line instead of typing each and every sql commands. So, I will write how to execute .sql file from command line in

Posted in Linux, Postgres, Ubuntu Tagged with: , , , , , , , , , , , , , , ,

How to install virtualbox in ubuntu

Hi all, I have installed virtualbox many times in my ubuntu machine. But recently, after installing virtualbox in my ubuntu machine from Software center, I found some problem installing guest additions in it. After much searching I found that I

Posted in Ubuntu, Virtualbox Tagged with: , , , , , , , , , , , , , , , ,

Ubuntu 12.04 on Virtualbox pae error – “Unable to boot – please use a kernel appropriate for your CPU”

Hi all, My last post was about the release of Ubuntu 12.04 LTS. I wanted to install it in the VirtualBox. But I got an error. So this post is about how to remove the error and move forward with

Posted in Linux, Precise Pangolin, Ubuntu, Ubuntu 12.04 LTS, Virtualbox Tagged with: , , , , , , , , , , , , , , , , , , , , , ,

Ubuntu 12.04 LTS Precise Pangolin is released

Hi all, I am back again after a long time. This post is about the new release of Ubuntu, 12.04 LTS, code named Precise Pangolin.   It was officially released few hours back. This is a¬†Long Term Support released whose

Posted in Linux, Precise Pangolin, Ubuntu, Ubuntu 12.04 LTS Tagged with: , , , , , , , , , , , , , ,

Regex to match MAC Address

  Hi everyone, I am back after a long time. In this short blog I will show you how I found the MAC Address of my Ubuntu Linux system using regular expression. You can use this regex to match all

Posted in Linux, Ubuntu Tagged with: , , , , , , , , , , , , , , , , ,
%d bloggers like this: