How to Install Desktop Environment on CentOS 7 Oracle Cloud Instance



 

How to Install Desktop Environment on CentOS 7 Oracle Cloud Instance

                             

Installation and Difference between GNOME, MATE and XFCE

This guide shows how to install Desktop Environment on CentOS 7 the same procedure is also applicable if you have CentOS 7 instance installed on Oracle Cloud Always Free, Amazon AWS Free Tier, Google Cloud Always Free and Microsoft Azure Free Tier, IBM Cloud Free Tier, etc see the comparison between all the cloud service providers here.

There are several Desktop Environments available for the CentOS 7 for example GNOME, MATE, XFCE, etc.

All the desktop environments are having different requirements for the resources, if I rate with respect to resources XFCE is the least resource requiring Desktop as per my experience. I will rate MATE on second position. GNOME is a heavy resource desktop environment.

Similarly their look also depends on how much resource these environments use. I would rate GNOME as a best out of these three due to its look and graphics.

Before you install any desktop environment you will need to install XRDP to connect with your remote desktop.

How to Install XRDP

sudo yum install -y epel-release
yum -y install xrdp tigervnc-server
sudo systemctl enable xrdp
sudo systemctl start xrdp

chcon --type=bin_t /usr/sbin/xrdp
chcon --type=bin_t /usr/sbin/xrdp-sesman

How to Open firewall ports

sudo firewall-cmd --add-port=3350/tcp --permanent
sudo firewall-cmd --add-port=3389/tcp --permanent

How to Install GNOME Desktop Environment

Better to start with

 

yum -y update

Install GNOME

yum -y groupinstall "GNOME Desktop" "Graphical Administration Tools" -y
or
sudo yum groupinstall "GNOME DESKTOP" "Graphical Administration Tools" -y

echo "gnome-session" > ~/.Xclients
chmod +x ~/.Xclients
sudo systemctl restart xrdp.service

Setting GUI target

Since VPS are mostly with the command line interface you will need to set GUI as a boot target so that every time you restart the VPS the OS should boot in GUI environment:

systemctl get-default

if the output says multi-user.target than you will need to run below command:

sudo systemctl set-default graphical.target

and than reboot by below command

reboot

DONE!

Now you can start Remote Desktop in Windows

How to, CentOS 7, Amazon AWS, Google Cloud, Oracle Cloud

If you can't find remote desktop in the start menu you can use

Window Key + R and type mstsc.exe

Now go to your Oracle Cloud Infrastructure Console on the left menu Compute > Instance and select your instance

Copy your public IP and paste in Compute: box of Remote Desktop and connect.

XRDP login menu will popup you will need to login with the "root" user and the password you set for the "root" user

This is how GNOME looks:

How to Install XFCE Desktop Environment

 

This is preferred desktop environment if you are using VPS system with less resources for example if you are using Oracle Cloud Always Free account this environment recommended.

However if you are a graphics fan you can stick to GNOME.

To Install XFCE start with

sudo yum -y install epel-release
sudo yum -y groupinstall "X Window system"
sudo yum groupinstall -y "Xfce"

and to add in XRDP sessions XFCE environment run below command:

echo "xfce4-session" > ~/.Xclients
chmod a+x ~/.Xclients
sudo systemctl restart xrdp.service

and reboot

reboot

 

How to Install MATE Desktop Environment

To install MATE its better to uninstall XFCE or GNOME environment.

To uninstall XFCE:

sudo yum groupremove -y "Xfce"
sudo yum remove -y libxfce4*

Install MATE by following command:

sudo yum -y groupinstall "X Window system"
sudo yum -y groupinstall "MATE Desktop"

echo "mate-session" > ~/.Xclients
chmod +x ~/.Xclients
sudo systemctl restart xrdp.service

Reboot using this command:

init 6

How to Install KDE Desktop Environment

To install KDE you will need X Window system as well to install both in one command use below command:

sudo yum groupinstall 'KDE' 'X Window System'

echo "startkde" > ~/.Xclients
chmod +x ~/.Xclients
sudo systemctl restart xrdp.service

Connect with Remote Desktop as explained above.

KDE environment looks like as shown below:

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Please post your questions or comments below.

If you are not sure how to Install CentOS 7 on Oracle Cloud or Amazon AWS Instance follow this guide:

How to Install CentOS 7 on Oracle Cloud or Amazon AWS - Coming Soon

How to Create Account on Oracle Cloud and Launch VM Instance - Coming Soon

Originally Published here:

How to Install Desktop Environment on CentOS 7 Oracle Cloud Instance

Keywords:

yum groupinstall gnome desktop environment, yum groupinstall, gnome, desktop, desktop environment, yum, how to, how to install, CentOS 7, Oracle Cloud Instance, Oracle Cloud Infrastructure

Posted in Technical Solutions on Feb 28, 2021



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