GNU Privacy Guard (GnuPG or GPG) is a free software alternative to the PGP suite of cryptographic software. This is quick guide, howto Encrypt and Decrypt files on Linux with password using GPG. This guide deals with both the interactive mode and the non interactive mode. Interactive mode is useful when the purpose is encrypt some files on the command line. Non interactive mode is useful when the purpose is encrypt files using scripts.

This is quick guide howto show Linux version, howto show Linux distributin (distro) info, howto show Linux System information, kernel version and kernel information on command line. Show Linux Version Linux version information can be checked using the following commands: cat /proc/version Another way to check Linux Version information is following: dmesg | grep "Linux version" Example output: Linux version 4.11.10-300.fc26.x86_64 ([email protected]) (gcc version 7.1.1 20170622 (Red Hat 7.1.1-3) (GCC) ) #1 SMP Wed Jul 12 17:05:39 UTC 2017 Show Linux Distribution/Distro information Use lsb_release command to show Linux distribution information: lsb_release -a Example output:

This is guide, howto install SVN (Subversion) server on Fedora 31/30/29/28, CentOS 8.0/7.7/6.10, Red Hat (RHEL) 8.0/7.7/6.10. What is SVN (Subversion)? Subversion is a free/open-source version control system. Subversion manages files and directories, and the changes made to them, over time. This allows you to recover older versions of your data, or examine the history of how your data changed. In this regard, many people think of a version control system as a sort of “time machine”.

This is quick tip, howto list contents of tar, tar.gz and tar.bz2 files without unpacking file. This is very useful on server environment where any graphical tool is not available. This method is also very useful when tar, tar.gz or tar.bz2 packages are really big, something like hundreds of megabytes or gigabytes (for example backups). Overall, the key is the tar command with -t option. List the Contents of tar File List tar contents short command tar -tvf archive.

Fedora 14 codename Laughlin is coming soon (2010-11-02) and Fedora 14 Beta final version is available very soon (2010-09-28). Check also Fedora 14 Install Guide or upgrade Fedora 13 to Fedora 14. I have done some testing with Fedora 14 (Alpha, Beta RC1 and Beta RC2) on my laptop and everything works smoothly. Soon I will revise all this blog Fedora guides and software installation instructions and update them to work with Fedora 14 Laughlin.

This is quick guide howto enable Apache userdirs with SELinux on Fedora 31/30/29/28, CentOS 8.0/7.7/6.10 and Red Hat (RHEL) 8.0/7.7/6.10. This guide assumes that you have Apache (httpd) server installed on your system. This guide uses separeted userdir.conf without touching httpd.conf so later default httpd.conf can be overrided or whole configuration moved simply. This guide uses user called testuser and should be replaced by real user name(s). Enable Apache Userdirs 1.

Please note: This guide still working normally if you want install Sun/Oracle Java 7, but if you want Java 8 version, then check Install Oracle Java JDK/JRE 8 on Fedora, CentOS/RHEL. This is guide, howto Install Sun/Oracle Java JDK and JRE 7 CPU (7u79) and PSU (7u80) on Fedora 24/23/22/21/20/19/18/17/16/15/14/13/12, CentOS 7.2/6.8/5.11, Red Hat (RHEL) 7.2/6.8/5.11. Read more, what is difference between CPU and PSU release. If you’re looking instruction for Sun/Oracle Java JDK/JRE version 6 installation on Fedora 20/19/18, CentOS/Red Hat (RHEL) 6.

This is guide, howto install WordPress 4.1.1 with Nginx or Apache on Fedora 21/20/19, CentOS 7/6.6/5.11 and Red Hat (RHEL) 7/6.6/5.11 servers. WordPress needs web server with PHP and MariaDB or MySQL database. This guide uses Apache web server with PHP 5.6 or Nginx web server with PHP 5.6 (PHP-FPM) and MariaDB 10/5.5 database server or Mysql 5.6 database server. If you want to install WordPress with Apache then use a – [Apache] sections and if you want install WordPress with Nginx then use b – [Nginx] sections.

LAMP (Linux, Apache, MariaDB/MySQL, PHP) server is very powerful server setup behind any website or web based service. This guide is collection of Fedora/CentOS/Red Hat (RHEL), Apache, MariaDB/MySQL and PHP install guides. Today the Internet is full of instructions, which promises a LAMP server installation with a “One-Liner”, and so forth. In fact, these “One-Liner” instructions assume that, Linux is already installed and installs just AMP (Apache, MariaDB/MySQL, PHP) pakages, without any configuration.

This is guide howto install Android SDK Tools r16 and Eclipse ADT (Android Development Tools) Plugin on Fedora 16, Fedora 15, Fedora 14, Fedora 13, CentOS 6.2/6.1/6 and Red Hat (RHEL) 6.2/6.1/6. This Guide Contents 1. Preparing Your Development Computer and Install Required softwares 2. Install Andoid SDK 3. Install ADT Plugin for Eclipse 4. Configure Eclipse and Install Latest Android SDK with AVD Manager 5. Create Simple Android Test Project 1.

Mozilla Firefox 4 is released and this is guide, howto install Firefox 4 smoothly on Fedora 14, Fedora 13 and Fedora 12 using YUM. It’s important to take backups of all Firefox profiles before install, because this major version upgrade and can behave in any unpredictable way. What’s new in Firefox 4 New HTML5 parser Support for more HTML5 form controls Native support for the HD HTML5 WebM video format Crash protection – when there is a crash in the Adobe Flash, Apple Quicktime or Microsoft Silverlight plugins Web developers can animate content using CSS Transitions New Addons Manager and extension management API Full WebGL support – is included but disabled by default at this time Read full details from Firefox 4 release notes.

Please note: This guide still working normally if you want install Sun/Oracle Java 6, but if you want Java 8 version, then check Install Oracle Java JDK/JRE 8 on Fedora, CentOS/RHEL or if you want Java 7 version, then check Howto Install Sun/Oracle Java JDK/JRE 7 on Fedora, CentOS/Red Hat (RHEL). By default, Fedora 19/18/17/16/15/14/13/12 and CentOS/Red Hat (RHEL) 6.4/6.3/6.2/6.1/6/5.9 Linux operating systems use the OpenJDK Java, which is a good choice for normal use and it works with almost all the Java programs normally.

This is guide, howto install latest Eclipse Mars.2 4.5.2 on Fedora, CentOS and Red Hat (RHEL). This guide should work with Fedora 24/23/22/21/20/19/18/17/16/15/14/13/12, CentOS 7.2/6.8/5.11 and Red Hat (RHEL) 7.2/6.8/5.11 and even with earlier versions. Latest working version on CentOS/RHEL 5.11 is Eclipse Luna 4.4.2. Eclipse is a multi-language software development environment comprising an integrated development environment (IDE) and an extensible plug-in system. It is written primarily in Java and can be used to develop applications in Java and, by means of various plug-ins, other languages including C, C++, COBOL, Python, Perl, PHP, Scala and Ruby (including Ruby on Rails framework).

I wrote “Howto Install ATI Drivers (Mesa 3D DRI Experimental) on Fedora 12 Linux” a few months ago, because there is no way to install ATI’s proprietary drivers on Fedora 12. And the situation is no better either with Fedora 13. I can’t understand, that why AMD can’t publish new ATI graphics card drivers for new Linux kernels and X.org. For example, the nVidia Linux driver releases succeed as easily as the Windows drivers.

This is guide, howto install or update Opera 72.0.3815.148 browser on Fedora, CentOS and Red Hat (RHEL). This works on Fedora 33/32/31, CentOS 8.2/7.8 and Red Hat (RHEL) 8.2/7.8. Check Opera Browser features >> Check video version of guide: {{ youtube YN4PeNEGPJQ >}} Subscribe and follow: Follow @inttf 1. Change Root User sudo -i ## OR ## su - 2. Install Opera Browser 72 on Fedora, CentOS and Red Hat (RHEL) 2.

Package change log information is not directly available from the YUM package management. This is short guide howto enable (install) changelog plugin and use changelog information with YUM package management system. Install YUM Changelog Plugin for Viewing Package Changelogs Install YUM Changelog Plugin on Fedora (as root) yum install yum-plugin-changelog Install YUM Changelog Plugin on CentOS and Red Hat (RHEL) (as root) yum install yum-changelog Examples Howto to View Changelogs Viewing Selected Package Changelogs Viewing all glibc package changelogs

I think the most easiest way to upgrade Fedora 12 to Fedora 13 is use Preupgrade, which download needed packages from the server and then just reboot to installer and after install boot the new system. This guide I use preupgrade-cli version, which works from command line. If you want use Preupgrade Graphical version then you can check this Howto upgrade Fedora 11 to Fedora 12 with Preupgrade guide, which works same way with Fedora 13 (Goddard).

This is guide with screenshots, howto install NetBeans 6.9.1 on Fedora 14, Fedora 13, Fedora 12, CentOS 5.4, CentOS 5.5, Red Hat (RHEL) 5.4, Red Hat (RHEL) 5.5, Red Hat (RHEL) 6. What is NetBeans? The NetBeans IDE (integrated development environment) is available for Windows, Mac, Linux, and Solaris. The NetBeans project consists of an open-source IDE and an application platform that enable developers to rapidly create web, enterprise, desktop, and mobile applications using the Java platform, as well as JavaFX, PHP, JavaScript and Ajax, Ruby and Ruby on Rails, Groovy and Grails, and C/C++.

This is Red Hat 6 RHEL (Red Hat Enterprise Linux) installation guide, step-by-step walkthrough with screenshots. Current version of Red Hat 6 is Beta, but also this RHEL 6 Beta version looks very stable and good OS, so that’s why I decided to write this RHEL 6 Installation guide. The Red Hat Enterprise Linux 6 Beta is available on the following architectures: i386 AMD64/Intel64 System z IBM Power (64-bit) Download Red Hat 6 Beta DVD images here.

This is quick guide, howto upgrade to CentOS 5.11 from CentOS 5.10 (5.9, 5.8, 5.7, 5.6, 5.5, 5.4, 5.3, 5.2, 5.1, 5.0). 1. Change to root User su - ## OR ## sudo -i 2. Backup all important data Backup /etc diretory Backup important logs /var/log Backup web server configs and sites Dump MySQL databases Dump PostgreSQL databases Backup all what you need if something goes wrong 3. Check list of packages that are going to be updated yum list updates 4.