Sometimes, we want to run Ubuntu in live mode and test a few programs or commands that need to be installed first. Ubuntu supports installing packages in a live session in the same way as in a fully installed setup. However, when trying to install package in a live session, often times the following error… Read More »
After you install Ubuntu inside VirtualBox its necessary to install guest additions in order to enable enhanced features like native screen resolution, seamless windows, shared clipboard, shared folders and few others. Without it, you would probably have to work with a standard resolution like 1024×768 as the default virtual machine does not support every possible… Read More »
DNS Leak DNS Leak is commonly seen in vpn connections, when all the http traffic goes through the vpn tunnel, however the dns queries go directly to system/isp dns servers bypassing the vpn tunnel, which breaks the privacy protection offered by the vpn. Unless dns leaks are fixed, you are not fully privacy guarded in… Read More »
In a pervious article we discussed about the important cpu performance metrics like usage, temperature, power and clock frequency. In this article we shall take a look at various methods of monitoring the same on Ubuntu or similar linux distros. There are quite a few commands on linux for monitoring cpu metrics. If you just… Read More »
So recently I was looking for a command to check the live power consumption of cpu in watts. I tried different commands like powertop, powerstat, lm-sensors but none of them worked properly. lm-sensors did show the temperatures of individual cores of the cpu, but could not display the watts being consumed in realtime. Other commands… Read More »
Encrypting a usb drive is an excellent idea for ensure that your data is safe and secure. If you are storing business data or any kind of personal sensitive information in a usb drive, its important to keep it safe it from hackers and snoopers. Or if you accidentally loose your usb drive then you… Read More »
Getting detailed information about the wifi adapter on a linux system is not straight forward using gui tools. However there are simple commands that can do the trick. In this article we shall take a look at commands like iwconfig, iwlist, iw and nmcli which can be used to probe details about the wifi adapter… Read More »
Xdebug is a powerful debugging and profiling tool for php that allows you to find and fix errors faster by showing the entire stack trace and source code file and line number. If you want your php development to be error free you should use something like xdebug right from the beginning. A very useful… Read More »
A lot of Intel processors like the i5-7400 have integrated gpus, that work quite well with Ubuntu and similar Linux systems using the open source drivers. Besides IGPU inside CPUs, there are even some motherboards that have IGPU in their chipsets. In this article we shall take a look at some of the commands that… Read More »
We often receive password encrypted pdfs on our mail from various places. When saving these pdfs locally its a good idea to get rid of the password, so that we don’t need to remember it later on. On Ubuntu there are many simple ways to remove the password of a pdf files, each with its… Read More »