Tag Archives: Linux - Page 6

How To Install DNF Package Manager In CentOS/RHEL

Posted by Jarrod Farncomb on January 2, 2017 6 comments

DNF, or Dandified Yum, which is the next major version of the Yum package manager was introduced with Fedora 18. As of Fedora 22, it has become the default package manager.

As you may know, the Fedora Linux operating system is essentially a bleeding edge testing ground for packages that may be included in RHEL/CentOS based distributions in the future.

It is therefore likely that in some future release, RHEL/CentOS will also make use of DNF rather than Yum to take advantage of the new features, so let’s take a look at what’s involved in installing and using DNF in CentOS Linux so that we can be ready for it when it’s made default.

How To Join CentOS Linux To An Active Directory Domain

Posted by Jarrod Farncomb on December 28, 2016 103 comments

Here we’ll show you how to add your Linux system to a Microsoft Windows Active Directory (AD) domain through the command line. This will allow us to SSH into the Linux server with user accounts in our AD domain, providing a central source of cross-platform authentication.

12 Dig Command Examples To Query DNS In Linux

Posted by Jarrod Farncomb on December 21, 2016 8 comments

Dig (domain information groper) is a tool that is used for querying DNS servers for various DNS records, making it very useful for troubleshooting DNS problems.

By the end of this guide you will know how to use dig to perform different types of DNS lookups in Linux.

11 ip Command Examples For Linux

Posted by Jarrod Farncomb on December 14, 2016 No comments

The ‘ip’ command is used to print out various network information in Linux. It replaces the deprecated ‘ifconfig’ command, which is not even installed by default in CentOS 7.

The ip command is part of the iproute package, which is installed by default in most modern Linux distributions.

In the examples here you’ll see how to use the ip command to show network configuration such as link information, IP addresses and routing.

14 Simple df (Disk Free) Command Examples For Linux

Posted by Jarrod Farncomb on December 7, 2016 3 comments

The ‘df’ command is used to quickly print an overview of the disk space in use on different partitions and file systems.

df comes from the GNU Coreutils package and should be available by default in Unix/Linux based operating systems.

23 tar Command Examples For Linux

Posted by Jarrod Farncomb on November 23, 2016 4 comments

The GNU tape archive command, known as ‘tar’, is used to store many different files together into a single archive file. This makes it easy to perform backups and restores of files and directories in Unix/Linux based operating systems.

The practical examples in this guide will show you how to use the tar command in all sorts of different situations.

16 Simple cat Command Examples For Linux

Posted by Jarrod Farncomb on November 16, 2016 No comments

The ‘cat’ command is used to read and concatenate files, printing them out to standard output.

Cat comes from the GNU Coreutils package and should be available by default in Unix/Linux based operating systems.

21 Simple ls Command Examples For Linux

Posted by Jarrod Farncomb on November 9, 2016 1 comment

The ‘ls’ command is a standard GNU command used in Unix/Linux based operating systems to list directory contents and display information about the sub directories and files within.

The practical examples in this guide will show you how to use the ls command in all sorts of different situations.

20 wget Command Examples For Linux

Posted by Jarrod Farncomb on November 2, 2016 No comments

Wget is a non-interactive network downloader which can be used for downloading files in Unix/Linux. It supports the HTTP, HTTPS and FTP protocols and also has proxy support.

The wget command is quite powerful and has a lot of options available, in this guide we’ll be covering 20 of the most important wget examples that will help you learn how to best use it.

Managing Swap Space In Linux

Posted by Jarrod Farncomb on October 26, 2016 No comments

Swap space is an area of disk that is used to store memory to. Here we’ll take a look at managing swap space in Linux by determining what is actually using the swap space, controlling how frequently swap space is written to, and finally adding additional swap space if required.

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