How to change network card speed and duplex settings in ubuntu

If you want to change speed and duplex of your network card you have to use ethtool or mii-tool.

ethtool can be used to query and change settings such as speed, auto- negotiation and checksum offload on many network devices, especially Ethernet devices.

How to Install Java Runtime Environment (JRE) in Ubuntu

Java is an object-oriented programming language developed by Sun Microsystems in the early 1990s. Java applications are compiled to bytecode, which at runtime is either interpreted or compiled to native machine code for execution.

The language itself derives much of its syntax from C and C++ but has a simpler object model and fewer low-level facilities. JavaScript, a scripting language, shares a similar name and has similar syntax, but is not directly related to Java.

first command to run after installing Ubuntu

Ubuntu is a great operating system. It fast, secured and easy to use when compared to most of other operating Systems. But Ubuntu is not complete without some additional packages. One command make Ubuntu useful for everyday use.

To get started, press Ctrl – Alt – T on your keyboard to open Terminal.

When Terminal opens, type the command below and press Enter to install.

sudo apt-get install ubuntu-restricted-extras