Sudo – grant a user with root privileges
Sudo (su “do”) allows a system administrator to delegate authority to give certain users (or groups of users) the ability to run some (or all) commands as root or another user while providing an audit trail of the commands and their arguments. Continue reading
Bootable USB stick is very handy and it seems to easy to create using dedicated applications both under Linus or M$ but let’s set the challenge and try to make it manually from the bare Linux command like. This knowledge may become very helpful in Data Centrer scenarios where servers BIOS need to be updated but no Windows environment is available for the M$ executable to run.
At the end of this tutorial you will see that USB creators tools are quite sophisticated peace of software allowing to create many different systems with a speed of blink of an eye not necessary telling to the user all magic happening under a hood. Let’s start… Continue reading
This is a guide how to install a bare minimum but usable LXDE desktop in Ubuntu very useful especially in cases like AWS instance desktop environment or virtual machine desktop in VMWARE and Virtual-box. Continue reading
I am using Conky as a system info which is directly embedded into my Linux desktop background. The rich configuration options and flexibility allows various data to be displayed in fully configurable format adding extra blink to the desktop wallpaper. Continue reading
This are methods you can use to measure the Internet bandwidth, speed, delay etc.. in Linux terminal: Continue reading
Linux console port serial connection it is very handy way of managing Cisco switches and routers. This is especially useful when you are connecting using older laptop with COM port. Please follow step-by-spe guide to configure Cisco Serial Console Connection in Linux: Continue reading
A few keyboard short-cuts to use working in Linux terminal either in a text mode or desktop X session:
- [Ctrl] + [Alt] + [Fn] = it switches screens.
[Ctrl]+[Alt] + [F1] through [F6] are text-mode shell prompt screens and [F7] is the graphical desktop screen.
- [Ctrl] + [Alt] + [Delete] = When is used in graphic desktop session it shuts down Cent OS, Red Hat and should work similar with any other Linux distribution. To use only when the normal shutdown procedure does not work, this short-cut will display the desktop logout screen that allow you to logout, reboot, or shut down.
We can distinguish many archives format and compressions methods however 3 the most used are Tar, Gz, Bzip archives. TAR command helps working with archives in linux where tar = tape archive and its the most common used options are:
- c – create a new tar file
- Continue reading