How to create your own VPN server on Ubuntu, Debian and CentOS
With the constant changes of city and country that I have had lately, I have had to use a lot of free wifi networks ...
Tutorials / Manuals / Tips
How to create and print a Bitcoin wallet in GNU / Linux
In previous articles we have talked about Bitcoin, the electronic currency that is characterized by not being endorsed or delimited by any banking entity ...
How to have your own social network with HumHub
Social networks increasingly influence people and companies, that need for communication has allowed ...
Redirect traffic from one IP and port to another IP and port
Something very common when managing servers is redirecting traffic. Suppose we have a server with certain services running, but for ...
PowerShell now available for Linux
What is PowerShell? PowerShell is a shell, that is, an interface for operating the operating system, which works for everything ...
Give GIMP the look of Photoshop
Some time ago I showed you how to give GIMP the appearance of Photoshop CS6, however, the drawback that ...
6 features that your music player should have
For music fans, Linux has plenty of players and you won't know which one to choose. That is why we want to mention you ...
Restrict the use of USB devices in Linux
Here we will explain the variants that we can use to restrict the use of USB devices in Linux. The solutions are very simple to use.
Protect your computer against ping
About the ping command Through the ICMP protocol, that is, the popular ping command, we can know if a certain computer ...
HowTo: Install Plasma 5.2 in ArchLinux / Antergos + Tips
We already showed you the news and improvements that Plasma 5.2 brings us, and this time I will show you how to install ...
Measure HDD speed with dd
A few months ago I left you an article on how to measure the speed of the HDD with hdparm, well in this one ...
How to add PPA repositories in Debian
About Launchpad PPAs In Debian 7 add-apt-repository is a script specifically developed for the Ubuntu distribution that allows ...
Use your own Office Suite in the cloud with OnlyOffice
The cloud is in fashion, we know it, and large companies like Microsoft are uploading their main applications so that ...
Command to convert from UnixTime to Normal
Many are the times that I find dates in Unix format, obviously I don't understand a demon of what date and time ...
Basic permissions in GNU / Linux with chmod
Hello everyone! First of all, it is worth mentioning that this is my first contribution to the community, I hope that someone…
Download an entire site with wget even if there are restrictions
Have you tried downloading an entire site with wget -r and failed? It may be due to some restrictions, here we show you how to circumvent or avoid them.
Minimize any KDE application to the system tray
About KDE Whenever people talk about KDE, there is always one who argues that he has too many options. Keeps…
Use the KDE Task Scheduler again in Archlinux
The KDE * Task Planner * as its name indicates, is a tool that allows us to schedule various tasks ...
How to manage your routes and tourist activities
One of the favorite things for people to travel and discover new cultures, places and cuisines, has become ...
Firefox Tweaks: remove some unnecessary stuff and improve performance
A few days ago I published an article on my personal blog where I explained my opinion about what Mozilla Firefox should ...
With Terminal: Size and Space Commands
Let's say we want to know the size of a file, folder or the space on the hard disk on our server ...
Activate offline mode in Google Chrome
We show them how to activate the offline mode or "Work offline" in Google Chrome so that they can view the pages without being connected to the internet.
Apache Benchmark + GNUPlot: Measure and graph the performance of your web server
It does not matter if you use Nginx, Apache, Lighttpd or another, any network administrator that has a web server will want ...
Enable root user in Ubuntu
Has it ever happened to you that you can't log in as root in Ubuntu? This is a measure imposed by Canonical, here we explain how to undo it
Bash Script: Compare MAC of all computers on a network with a specific one
Here I will tell you about a bash script that I made for a very specific purpose, which I doubt others have ...
Access your server terminal through your web browser
Let's suppose that for some reason we cannot access our server with a terminal, because perhaps, we are in ...
Installing Wallabag on a VPS
Pocket is a popular service that allows us to save web pages to read them later calmly. What makes it ...
Headerbar: theme to integrate Firefox in Gnome
With the new integration in GNOME of the title bar with the toolbar (in the purest style ...
HowTo: Connect to Facebook chat with Pidgin (again)
Some time ago Facebook announced that they were abandoning the XMPP protocol for their chat system and therefore applications ...
Select, copy and paste text in nano, text editor in terminal
Those who use Vi (or Vim) always boast that if vi is much more powerful than nano, for sure ...
Betty: Siri or Google Now-style assistant in the Linux terminal
Betty translates simple English phrases into commands that actually need to be executed to carry out the requested action.
4 commands to know data from our HDD or partitions
I have not published here for a long time, this does not mean that I have forgotten FromLinux at all, not at all ... just ...
How to know if your HDD has bad sectors or is in poor health?
Not long ago I talked to you about how to measure the performance of an HDD in Linux, it is logical that if the ...
How to install a minimal version of Ubuntu
How to install Ubuntu in its simplest form, without all the multimedia applications, office automation, etc. that come by default.
10 things an open source developer should do
In recent years, the open source movement has grown by leaps and bounds and now virtually all ...
Install Gnome Classic (Flashback) on Ubuntu 14.10 / Linux Mint 17
What is Gnome Flashback? GNOME Flashback is a great and simple way to go back to the old classic desktop environment ...
Measure your HDD performance on Linux with hdparm
Many times we notice that the performance of a server is not what it should, there we ask ourselves, where will the ...
Shutdown and restart using commands
Many times we want to know how to turn off the computer, restart it ... each one after a certain time or at an exact time, ...
Good practices with OpenSSH
OpenSSH (Open Secure Shell) is a set of applications that allow encrypted communications over a network, using ...
Prepare Ubuntu (or another distro) for web development
Beyond the myths, beliefs or the opinion that GNU / Linux is difficult to use, I consider that ...
Fixing locale problem in ArchLinux
For some reason that I still do not know, after doing the usual ... configure the language es_ES in the new installation of ...
Exclusion to tasks that you run in Bash
Sometimes we need to execute a command, for example change the permissions of a folder and its content, however we want ...
What to do when Firefox does not start due to an error in about: config?
If you modify something in the about: config in Firefox and then it doesn't start the browser, what do you do? How do you solve it if you can't open it? Here we explain how
How to measure the performance of our GPU
Already KZKG ^ Gaara showed us how to measure the performance of our hard drives or the CPU of our computers, and now ...
Check tables of a MySQL database and repair corrupt
I am one of those who likes to be aware of the servers that I administer, although they are highly stable, it is never ...
How to fix the MySQL error: Too Many Connections
Introduction to the MySQL error: Too Many Connections When you have a web application (site, blog, forum, etc) that ...
How to change the filesystem from "/" and not die trying
Yesterday I discovered the hard way one of the "features" of the btrfs filesystem. It is that for reasons ...
Mega from the terminal with MegaCMD
I don't think I need to explain what Mega or the defunct Megaupload is (uff, what those times…). Currently we are many ...
Automatically mount USB devices on a Raspberry PI
In Raspberry, if you don't use a graphical interface, it becomes annoying to be mounting our memory over and over again ...
Backup Thunderbird and Firefox between Windows and Linux
Sometimes in the migration of a company, the most critical thing is to migrate, worth the redundancy, the information and the ...
How to have your own slither.io server
One of the fashion games is slither.io, which is a multiplayer browser game that consists of controlling ...
Monitor a user and their emails with Postfix
How to make copies of every email sent and received from a given user, all through a few simple lines in the Postfix configuration file.
Tips: More than 400 commands for GNU / Linux that you should know: D
I have found in the GUTL Wiki this complete list with more than 400 commands for GNU / Linux with their…
Restrict bandwidth of a network interface
On certain occasions we need to restrict the bandwidth, the download and upload speed that a computer will have in ...
Reuse Crontab on ArchLinux Using Cronie
Those of us who like to have tasks scheduled on the PC, automate tasks and things like that, we know cron in depth and ...
How to measure the CPU performance of a VPS?
A few days ago I told you how to know the speed of an HDD using the dd command, well in this one ...
Tutorial: Install .tar.gz and .tar.bz2 Packages
At first, when we start in Linux and look for a program, it is normal that we find a .deb or .rpm ...
How to know the status of Pokémon GO Servers on Linux
We are still hooked on Pokémon Go, so probably these days we will share a lot about this great game and its ...
How to find the Tinder profiles of your Facebook friends with Tinder-Detective
Social Networks grow and grow more and more, unfortunately for the free software community, there are few networks ...
How to get Pokémon quickly with Pokémon Go Map
Everyone is talking about Pokémon GO, the excellent game created by Nintendo and that is captivating great ...
How to use Slack from the console with Slack-Gitsin
Communication in companies has become the main weapon to face any crisis, innovate in a way ...
How to get funding for Open Source Projects
The Practical Guide for Open Source Financial Support was originally designed by Nadia Eghbal, in order to…
How to work from home and not fail in the attempt
Working from home can be tricky if you don't create some limits. At home there are a greater number of distractions than ...
Firewall, IDS, Cloud, Mail (and whatever goes out) in your home. Part 2
Cloud Our next service will be "the cloud", a place where you can have documents, music and any file, also a calendar ...
The most common myths about open source and its openness
Today, a large number of companies have chosen to use open source components in their infrastructure and are ...
Avoid these bad practices in your open source projects
On the web you can find a lot of information about how to develop an open source project, but nobody comments on what ...
Packages in DEBIAN - Part IV (Network Interface Management)
Greetings, Dear cyber-readers. After a long pause we continue with the fourth (4th) publication of the series of 10 dedicated to ...
Tips: More than 100 commands for GitHub / Git that you should know
Yesterday was quite a programming day and a conflict with the git repository led me to the ...
How to view the Results of Soccer Matches from the Console
The most beautiful sport in the world undoubtedly fascinates millions of people, lovers of free software do not ...
How to have your own soccer results and statistics system with Free Software
All football lovers like to be informed, we want to know the statistics and results of our favorite teams, in ...
Zabbix 3 supervision and monitoring service
Hello everyone. This time I bring you this very useful and unknown tool for many, to be able to monitor and watch ...
How to change SSH port in Fedora 23 and how to operate your firewall
In Fedora 23 it is possible to change the default SSH port (22) to another of your choice that is ...
GNOME Disks to diagnose your hard drive
Continuing with the publications on hard drives, today I bring you a tool that will allow us to make a very complete diagnosis ...
Defragmenting XFS file systems in Fedora 23
If you thought that only the NTFS and Fat systems were fragmented, then surely you will be surprised when you read ...
How to free up space in the Boot sector in Ubuntu
If you have ever tried to install security updates for the Linux kernel and you got a prompt indicating that ...
Installing and configuring WordPress 4.5 Multisite on Debian Jessie
Greetings community. I recently came across the need to install and configure the latest version of WordPress with the ...
Free Clients and Libraries for a more open WhatsApp
WhatsApp is the most used instant messaging platform in the world, we all know it for 2 simple reasons or ...
Find packages with apt-cache and aptitude
When uninstalling a program or package in Linux, you have two options, or do it through the center ...
Uninstalling programs by command line.
Linux has different methods to install programs, you can do the installation from the repositories, both by a manager ...
Create your own firewall with iptables using this simple script part 2
Hello everyone, today I bring you a second part of this series of tutorials on firewall with iptables, very simple ...
Manage WordPress from Android app
Well, they say that we are in the era of mobile devices and gadgets. And the majority ...
Packages in DEBIAN - Part III (Network Interface Management)
Greetings, Dear cyber-readers. This is the third publication in the series of 10 dedicated to the Study of the Packages of ...
Create your own firewall with iptables using this simple script
I spent some time thinking about two things about iptables: most of those who look for these tutorials ...
Handbrake: Rip, video transcoder and a few other things
Handbrake is one of the most popular free and open source cross-platform video transcoders, licensed under the GNU GPLv2 + license. It started as…
Manage user keys with passwd
Many user accounts can exist on an operating system, each with its own password. Modify them on Linux, no ...
Packages in DEBIAN - Part II (Network Interface Management)
Greetings, Dear cyber-readers, This is the second publication in the series of 10 dedicated to the Study of Packages, which…
Modify your keyboard settings with Xmodmap
Commands, programs, there are many, each one for a particular application. Many of us think if they will really be useful in some ...
Packages in DEBIAN - Part I (Packages, Repositories and Package Managers.)
Greetings, Dear cyber-readers, This will be the first publication in a series of 10 related to the Study of Packages, the…
Tips for Canaima GNU / Linux 5.0
Greetings, dear cyber-readers. In this new opportunity I will comment on some outstanding technical tips that will allow those who currently ...
Genymotion: An Android Emulator for GNU / Linux
Greetings, Dear cyber-readers, this time we bring to Genymotion an excellent program that I have started to use to bypass the limitations ...
Ubuntu on Windows, alliance between Canonical and Microsoft
We all know Windows, one of the most widely used «Paid» operating systems in the desktop computer market, and ...
VkAudioSaver: Download and listen to music online using Free Software
In this new post we will talk about another great Free Software App made from Russia and whose name is VkAudioSaver….
Create your own home cloud (data server) with OwnCloud 9.0
Greetings, cyber-readers! After several days of absence due to work occupations, I bring you an excellent post that I dedicate to ...
How to know if your hard drive is about to “die” analyzing it with fsck and making backups with the tar command
Hard drives are components of our computers and like everything in this world at some point they will end their...
How to update Chrome on Ubuntu, Debian and derivatives
Last Friday, I came across the unpleasant surprise in which when updating Google Chrome, the ...
Tips to protect your privacy in GNU / Linux.
Notice: below we will talk about various tools compatible with most of the GNU / Linux distributions; we will talk about how ...
MAME officially opensource
Well, I'm not an old man, but if I get nostalgic and I like arcade games, don't judge me! Well ...
Squid 3.5.15 and squidGuard CentOS 7 (https and ACL)
Good good. Here I bring you Squid 3.5 (stable) in CentOS, oh geez !!!, if they told me I had to talk about ...
Build a Simple Virtualization Server with a Low Resource Computer - Part 3
Continuing with Part 1 and Part 2 of this Post we will end with this Part 3 where we will learn ...
Build your program step by step using Shell Scripting - Part 8
Once again welcome to this new lesson (# 8) of the Course (Tutorial) on Shell Scripting ”. In the previous 7 ...