How To Install Prometheus on Ubuntu 16.04 LTS

Install Prometheus on Ubuntu 16

Prometheus is an excellent open-source monitoring system which allows us to collect metrics from our applications and stores them in a database, especially a time-series based DB. The biggest advantage of Prometheus is the query language it provides for data processing.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step installation Prometheus open-source monitoring on an Ubuntu 16.04 Xenial Xerus server.

Install Prometheus on Ubuntu 16.04 LTS

Step 1. First make sure that all your system packages are up-to-date

sudo apt-get update
sudo apt-get upgrade

Step 2. Installing Nginx web server.

The first thing we must do is install NGINX on the system:

sudo apt-get install nginx
sudo systemctl start nginx
sudo systemctl enable nginx

Step 3. Installing Prometheus.

Prometheus has a Debian Package. To do this, import the package key into our machine:

GET https://s3-eu-west-1.amazonaws.com/deb.robustperception.io/41EFC99D.gpg | apt-key add -

Next, we’re ready to install all required packages in your system:

apt-get update
apt-get install prometheus prometheus-node-exporter prometheus-pushgateway prometheus-alertmanager

Once installed, you can confirm that the app is running by using this command:

service prometheus start
service prometheus status

Step 4. Accessing Prometheus.

Prometheus will be available on HTTP port 9090 by default. Open your favorite browser and navigate to http://yourdomain.com:9090 or http://server-ip:9090 and complete the required the steps to finish the installation.

prometheus-web-interface

Congratulation’s! You have successfully installed Prometheus. Thanks for using this tutorial for installing Prometheus open-source monitoring on your Ubuntu 16.04 LTS. For additional help or useful information, we recommend you to check the official Prometheus web site.

How To Install Angry IP Scanner on ubuntu 16.04 LTS

Install Angry IP Scanner on ubuntu 16

Angry IP Scanner is an open-source and cross-platform system scanner. It is very fast and simple to use platform that scans IP addresses and ports. TCP/IP(Angry IP) network scanner allows users to easily scan IP addresses within any range of your choice with a user friendly interface.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step installation Angry IP Scanner on an Ubuntu 16.04 Xenial Xerus server.

Install Angry IP Scanner on ubuntu 16.04 LTS

Step 1. First make sure that all your system packages are up-to-date

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install gdebi

Step 2. Installing Angry IP Scanner.

Use the below commands to install Angry IP scanner on Linux Ubuntu:

wget http://github.com/angryziber/ipscan/releases/download/3.3.3/ipscan_3.3.3_amd64.deb

Next, the installation process by simply running the following command which triggers the installation:

gdebi ipscan_3.3.3_amd64.deb

Step 3. Accessing Angry IP Scanner.

Once the Angry IP Scanner installation is complete, You can launch the application straight from your Ubuntu dashboard. In the search field, you can type the application name and when the icon appears, you shall click on it to launch it.

Congratulation’s! You have successfully installed Angry IP Scanner. Thanks for using this tutorial for installing Angry IP Scanner on your Ubuntu 16.04 system. For additional help or useful information, we recommend you to check the official Angry IP Scanner web site.

How To Install Oracle Java on Ubuntu 17.10

Install Oracle Java on Ubuntu 17

Java is a programming language and computing platform. It was first released by Sun Microsystems in 1995. Many programs and scripts that require Java to run it, but usually Java are not installed by default on a VPS or Dedicated Server.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step installation JRE (Java Runtime Environment) and JDK (Java Development Kit) on Ubuntu 17.10 Artful Aardvark.

Install Oracle Java on Ubuntu 17.10 Artful Aardvark

Step 1. First make sure that all your system packages are up-to-date

sudo apt-get update
sudo apt-get upgrade

Step 2. Installing Oracle Java on Ubuntu 17.10.
Run the following commands to install the Oracle JDK by Oracle:

sudo apt-get update
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install java-common oracle-java8-installer

Please note that during the Java installation process, you will have to accept the Oracle License agreement in order to complete the installation.
Verify Installed Java version.

java -version

Result:

java version "1.8.1_74"
Java(TM) SE Runtime Environment (build 1.8.1_74-b02)
Java HotSpot(TM) 64-Bit Server VM (build 25.74-b02, mixed mode)

Congratulation’s! You have successfully installed Java. Thanks for using this tutorial for installing Oracle Java (JRE or JDK) on Ubuntu 17.10 Artful Aardvark system. For additional help or useful information, we recommend you to check the official Java web site.

How To Install Firefox Quantum on Ubuntu 16.04 LTS

Install Firefox Quantum on Ubuntu 16

In this tutorial we will show you how to install and configure Firefox Quantum on Ubuntu 16.04 LTS. Mozilla today released Firefox 57 a.k.a Firefox Quantum. According to a Completely overhauled heart along with a revamped layout, Firefox Quantum has been built from the ground up to deliver a quick browsing experience while swallowing a limited amount of resources. Mozilla is calling Quantum the biggest update to the browser since its original release in 2004.

The browser now also comes with a new CSS engine Named Stylo which Takes better advantage of today’s devices featuring multi-core Processors to deliver a faster and simpler browsing experience. Firefox Will automatically prioritize busy tabs over inactive ones for better resource management. Mozilla claims that its approach to multiple Processes is exceptional and different from that of Chrome.

This article assumes you have at least basic knowledge of linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step installation Firefox Quantum web browser on a Ubuntu 16.04 (Xenial Xerus) server.

Install Firefox Quantum on Ubuntu 16.04 LTS

Step 1. First make sure that all your system packages are up-to-date

sudo apt-get update
sudo apt-get upgrade

Step 2. Installing Firefox Quantum.

First, add a repository for download Mozilla Firefox Quantum. Just follow this command:

sudo add-apt-repository ppa:mozillateam/firefox-next
sudo apt update
sudo apt upgrade
sudo apt install firefox

Once installed, open the Firefox Quantum from Ubuntu Dash.

Alternative Another Method:

cd /opt
sudo wget https://download-installer.cdn.mozilla.net/pub/firefox/releases/57.0/linux-x86_64/en-US/firefox-57.0.tar.bz2
sudo tar xfj firefox-57.0.tar.bz2

Start Firefox 57 from the CLI:

/opt/firefox/firefox

In order to create a quick launch icon in your desktop applications menu, issue the following commands in terminal:

cd /usr/share/applications/
sudo cp firefox.desktop firefox-quantum.desktop

Congratulation’s! You have successfully installed Firefox Quantum. Thanks for using this tutorial for installing Firefox Quantum web browser on Ubuntu 16.04 LTS (Xenial Xerus) system. For additional help or useful information, we recommend you to check the official Firefox web site.

How To Install LEMP on Ubuntu 17.10

Install LEMP on Ubuntu 17

A LEMP software stack is a group of open source software that is typically installed together to enable a server to host dynamic websites and web apps. This term is actually an acronym which represents the Linux operating system, with the Nginx web server (which replaces the Apache component of a LAMP stack). The site data is stored in a MySQL database (using MariaDB), and dynamic content is processed by PHP. In this tutorial we will show you how to install LEMP on Ubuntu 17.10 Artful Aardvark.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step installation LEMP Stack on an Ubuntu Ubuntu 17.10 Artful Aardvark server.

Install LEMP on Ubuntu 17.10 Artful Aardvark

Step 1. First make sure that all your system packages are up-to-date

sudo apt-get update
sudo apt-get upgrade

Step 2. Installing Nginx on Ubuntu 17.10.

Install Nginx with apt-get, which is the default package manager for Ubuntu:

sudo apt-get install nginx

Start Nginx service using the following command:

sudo systemctl start nginx

You can verify that Nginx is really running by opening your favorite web browser and entering the URL http://your-server’s-address, if it is installed, then you will see this:
Welcome_to_nginx_cropped

Step 3 Configure Nginx web server.

To get Nginx to work with PHP correctly, we need to make changes to the Nginx configuration file. This guide we will be using a simple Nginx config file:

sudo nano /etc/nginx/sites-available/default

Copy the following into your text editor:

    server {
            listen       80;
            server_name  your_domain_name.com;
            root /usr/share/nginx/html;
            index index.php index.html;
            location / {
                    try_files $uri $uri/ =404;
            }
            error_page 404 /404.html;
            error_page 500 502 503 504 /50x.html;
            location = /50x.html {
                    root /var/www/html;
            }
            location ~ \.php$ {
                    try_files $uri =404;
                    fastcgi_pass unix:/var/run/php5-fpm.sock;
                    fastcgi_index index.php;
                    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
                    include fastcgi_params;
            }
    }

Once you have finished editing the file restart Nginx with:

sudo nginx -t
sudo systemctl restart nginx

Step 4. Installing MySQL on Ubuntu 17.10.

To install MySQL in Ubuntu 17.10 run the following command:

sudo apt-get install mysql-server php7.0-mysql

Once complete, you can verify MySQL is installed by running the below command:

systemctl status mysql

By default, MySQL is not hardened. You can secure MySQL using the mysql_secure_installation script. you should read and below each steps carefully which will set root password, remove anonymous users, disallow remote root login, and remove the test database and access to secure MySQL:

mysql_secure_installation

Configure it like this:

- Set root password? [Y/n] y
- Remove anonymous users? [Y/n] y
- Disallow root login remotely? [Y/n] y
- Remove test database and access to it? [Y/n] y
- Reload privilege tables now? [Y/n] y

To log into MySQL, use the following command (note that it’s the same command you would use to log into a MySQL database):

mysql -u root -p

Step 5. Installing and Configuring PHP on Ubuntu 17.10

Install PHP on the Ubuntu 17.10 with the following command to begin the install:

sudo apt-get install php php-fpm php7.0-mysql

Once the installation is finished, edit the server php.ini file and change the cgi.fix_pathinfo parameter value to 0. By default it will be commented out with a semi-colon and the value set to 1 which practically ensures that PHP will attempt to execute the closest file available when a requested PHP file can’t be found. This is a bad security practice, so let’s change it. Execute the below command:

nano /etc/php/7.0/fpm/php.ini

Now find the cgi.fix_pathinfo line, uncomment it and set the value to 0. Save and close the file.

Your server should restart Nginx automatically after the installation of both MySQL and PHP. If it doesn’t, execute this command:

sudo systemctl restart nginx

To test PHP, create a test file named info.php with he content below. Save the file, then browse to it to see if PHP is working:

nano /usr/share/nginx/html/info.php

Copy the following into your text editor:

<?php phpinfo(); ?>

Try to access it at http://your_server_ip/info.php . If the PHP info page is rendered in your browser then everything looks good and you are ready to proceed further.

Congratulation’s! You have successfully installed LEMP stack. Thanks for using this tutorial for installing LAMP (Linux, Nginx, MySQL and PHP) in Ubuntu 17.10 Artful Aardvark system. For additional help or useful information, we recommend you to check the official Nginx, MySQL and PHP web site.

How To Install UFW Firewall on Ubuntu 16.04 LTS

Install UFW Firewall on Ubuntu 16

The default firewall configuration tool for Ubuntu is ufw. Developed to ease iptables firewall setup, ufw provides a user friendly way to produce an IPv4 or IPv6 host-based antivirus. By default UFW is disabled.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step installation UFW Firewall on an Ubuntu 16.04 Xenial Xerus server.

Install UFW Firewall on Ubuntu 16.04 LTS

Step 1. First make sure that all your system packages are up-to-date

sudo apt-get update
sudo apt-get upgrade

Step 2. Installing UFW Firewall.

In Ubuntu 16.04, UFW is installed by default. If not, you can easily install it by running the following command:

apt-get install ufw

After installation, UFW is deactivated. If you configure your server via SSH, it is important to release SSH before you enable UFW:

ufw allow ssh

Step 3. UFW control.

Turn on:

ufw enable

Turn off:

ufw disable

Attention! The following are examples, please use only if you know what you are doing!

Allow protocol:

ufw allow ssh

Allow port:

ufw allow 22

Allow Port Ranges:

ufw allow 1000:2000

Prohibit connections:

Deny protocol:

ufw deny ssh

Deny port:

ufw deny 22

For more usage commands you can use the –help flag:

ufw --help

Congratulation’s! You have successfully installed UFW. Thanks for using this tutorial for installing UFW Firewall on your Ubuntu 16.04 system. For additional help or useful information, we recommend you to check the official UFW Firewall web site.

How to Install WordPress on Ubuntu 17.10

Install WordPress on Ubuntu 17

WordPress is an online, open source website creation tool written in PHP. But in non-geek speak, it’s probably the easiest and most powerful blogging and website content management system (or CMS) in existence today. In this tutorial we will show you how to install WordPress on Ubuntu 17.10.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo’ to the commands to get root privileges. I will show you through the step by step installation WordPress content management systems on an Ubuntu 17.10 Artful Aardvark server.

Install WordPress on Ubuntu 17.10 Artful Aardvark

Step 1. First make sure that all your system packages are up-to-date

sudo apt-get update
sudo apt-get upgrade

Step 2. Install LAMP (Linux, Apache, MariaDB, PHP) server.

A Ubuntu 17.10 LAMP server is required. If you do not have LAMP installed, you can follow our guide here. Also install all required PHP modules:

apt-get install php7.0-mysql php7.0-curl php7.0-json php7.0-cgi php7.0 libapache2-mod-php7.0 php7.0-mcrypt php7.0-xmlrpc php7.0-gd

Step 3. Installing WordPress on Ubuntu 17.10 Artful Aardvark.

First thing to do is to go to WordPress’s download page and download the latest stable version of WordPress, At the moment of writing this article it is version 4.8.2:

wget http://wordpress.org/latest.zip

Unpack the WordPress archive to the document root directory on your server:

unzip -q latest.zip -d /var/www/html/
cd wordpress
cp -a * ..

We will need to change some folders permissions:

chown www-data:www-data -R /var/www/html/

We need to create the upload directory manually:

mkdir -p /var/www/html/wp-content/uploads

Allow the Apache web server to write to the uploads directory. Do this by assigning group ownership of this directory to your web server which will allow Apache to create files and directories. Issue the following command:

chown www-data:www-data -R /var/www/html/wp-content/uploads

Step 4. Configuring MariaDB for WordPress.

By default, MariaDB is not hardened. You can secure MariaDB using the mysql_secure_installation script. you should read and below each steps carefully which will set root password, remove anonymous users, disallow remote root login, and remove the test database and access to secure MariaDB:

mysql_secure_installation

Configure it like this:

- Set root password? [Y/n] y
- Remove anonymous users? [Y/n] y
- Disallow root login remotely? [Y/n] y
- Remove test database and access to it? [Y/n] y
- Reload privilege tables now? [Y/n] y

Next we will need to log in to the MariaDB console and create a database for the WordPress. Run the following command:

mysql -u root -p

This will prompt you for a password, so enter your MariaDB root password and hit Enter. Once you are logged in to your database server you need to create a database for WordPress installation:

create database wordpress;
grant all privileges on wordpress.* to wpuser@localhost identified by 'your-password';
flush privileges;
exit;

Step 5. Configuring WordPress

In this step we will configure the main configuration file of WordPress, where we need to configure it’s basic parameters so that it can be connected with the database and user:

mv wp-config-sample.php wp-config.php

Now open it using any of your favourite editor, to make any changes in the WordPress configuration file:

nano wp-config.php

Here are the values that we need to update according to our previous database and user’s setup:

// ** MySQL settings - You can get this info from your web host ** //
/** The name of the database for WordPress */
define('DB_NAME', 'wordpress');

/** MySQL database username */
define('DB_USER', 'wpuser');

/** MySQL database password */
define('DB_PASSWORD', 'your_password');

/** MySQL hostname */
define('DB_HOST', 'localhost');

Step 6. Configuring Apache web server for WordPress.

Create a new virtual host directive in Apache. For example, create a new Apache configuration file named ‘wordpress.conf’ on your virtual server:

sudo a2enmod rewrite
touch /etc/apache2/sites-available/wordpress.conf
ln -s /etc/apache2/sites-available/wordpress.conf /etc/apache2/sites-enabled/wordpress.conf
nano /etc/apache2/sites-available/wordpress.conf

Add the following lines:

<VirtualHost *:80>
ServerAdmin [email protected]
DocumentRoot /var/www/html/
ServerName your-domain.com
ServerAlias www.your-domain.com
<Directory /var/www/html/>
Options FollowSymLinks
AllowOverride All
Order allow,deny
allow from all
</Directory>
ErrorLog /var/log/apache2/your-domain.com-error_log
CustomLog /var/log/apache2/your-domain.com-access_log common
</VirtualHost>

Next step we will need to adjust the some some values in the PHP configuration files as follow:

nano /etc/php/7.0/apache2/php.ini

Add/modify the following settings:

max_execution_time = 300
max_input_time = 600
memory_limit = 256M
post_max_size = 64M
upload_max_filesize = 64M

Now, we can restart Apache web server so that the changes take place:

systemctl restart apache2.service

Step 7. Accessing WordPress.

WordPress will be available on HTTP port 80 by default. Open your favorite browser and navigate to http://yourdomain.com or http://server-ip/ and complete the required the steps to finish the installation. If you are using a firewall, please open port 80 to enable access to the control panel.

Congratulation’s! You have successfully installed WordPress. Thanks for using this tutorial for installing WordPress CMS (Content Management Systems) on your Ubuntu 17.10 Artful Aardvark. For additional help or useful information, we recommend you to check the official WordPress web site.