Step 1: Update Your System

First of all update your system to have the latest updates installed.

sudo apt update && sudo apt upgrade -y

Reboot  Sever 

Step 2: Install Apache, MariaDB & PHP On Ubuntu 20.04

Hit the below commands to get install the required packages.

sudo apt install apache2 mariadb-server php libapache2-mod-php php-common php-sqlite3 php-mysql php-gmp php-curl php-intl php-mbstring php-xmlrpc php-gd php-bcmath php-xml php-cli php-zip unzip git -y

When all dependencies are resolved, edit the php.ini file.

sudo nano /etc/php/7.4/apache2/php.ini

Modify the below lines according to your own requirements.

memory_limit = 256M
upload_max_filesize = 100M
max_execution_time = 360
date.timezone = Europe/Amsterdam

Then save & exit the file.

Now, type mysql in terminal to login to mariaDB.

mysql

CREATE DATABASE gibbondb;
CREATE USER 'gibbon'@'localhost' IDENTIFIED BY 'password';
GRANT ALL ON gibbondb.* TO 'gibbon'@'localhost' WITH GRANT OPTION;
FLUSH PRIVILEGES;
EXIT;

Step 3: Install Gibbon LMS On Ubuntu 20.04

With the help of wget command get the latest version of gibbon from their official site.

wget https://github.com/GibbonEdu/core/archive/v20.0.00.zip

After the download finished, extract it using unzip command.

unzip v20.0.00.zip

And then move the extracted content to the apache root folder.

mv core-20.0.00 /var/www/html/gibbon

And give the proper permssions.

chown -R www-data:www-data /var/www/html/gibbon/
chmod -R 755 /var/www/html/gibbon/

Step 4: Configure Apache For Gibbon LMS

Create a new config file.

sudo nano /etc/apache2/sites-available/gibbon.conf

And then paste the below content into it.

<VirtualHost *:80>
      ServerAdmin admin@example.com
      DocumentRoot /var/www/html/gibbon
      ServerName gibbon.example.com

      <Directory /var/www/html/gibbon/>
              Options FollowSymlinks
              AllowOverride All
              Require all granted
      </Directory>

ErrorLog ${APACHE_LOG_DIR}/error.log
CustomLog ${APACHE_LOG_DIR}/access.log combined

      <Directory /var/www/html/gibbon/>
              RewriteEngine on
              RewriteBase /
              RewriteCond %{REQUEST_FILENAME} !-f
              RewriteRule ^(.*) index.php [PT,L]
       </Directory>
</VirtualHost>

Save & exit the file.

And enable the new config file by

a2ensite gibbon.conf

Now, enable apache rewrite & restart the apache services.

a2enmod rewrite
systemctl restart apache2

Step 5: Access Gibbon LMS Web Interface

Type http://testlab.osradar.com in your browser to access gibbon lms on your system. You’ll see the given page.

Verify the requirements & hit “Submit” button. You’ll be redirected to other page. Here, provide mentioned details & hit “Submit” button.

Now, provide account configs, system settings & organization settings & finally click “Submit”.

On successfull installation you’ll see the following page.

Here, hit Gibbon Homepage to go to the login page.

Type credentials to login.

You’ll see the Gibbon LMS Dashboard as shown below:

Step 6: Secure Gibbon LMS with Let’s Encrypt SSL

As for security reasons it is recommended to install SSL certificates. Hit the below commands to install SSL.

sudo apt-get install python3-certbot-apache -y
certbot --apache -d testlab.osradar.com

Note: Replace testlab.osradar.com with your own domain. And provide the asked details to finish installing SSL.

Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator standalone, Installer None
Enter email address (used for urgent renewal and security notices) (Enter 'c' to
cancel): info@osradar.com

Please read the Terms of Service at
https://letsencrypt.org/documents/LE-SA-v1.2-November-15-2017.pdf. You must
agree in order to register with the ACME server at
https://acme-v02.api.letsencrypt.org/directory

(A)gree/(C)ancel: A

Would you be willing to share your email address with the Electronic Frontier
Foundation, a founding partner of the Let's Encrypt project and the non-profit
organization that develops Certbot? We'd like to send you email about our work
encrypting the web, EFF news, campaigns, and ways to support digital freedom.

(Y)es/(N)o: Y
Plugins selected: Authenticator apache, Installer apache
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for gibbon.example.com
Enabled Apache rewrite module
Waiting for verification…
Cleaning up challenges
Created an SSL vhost at /etc/apache2/sites-available/gibbon-le-ssl.conf
Enabled Apache socache_shmcb module
Enabled Apache ssl module
Deploying Certificate to VirtualHost /etc/apache2/sites-available/gibbon-le-ssl.conf
Enabling available site: /etc/apache2/sites-available/gibbon-le-ssl.conf

Select redirect http to https & press Enter.

Please choose whether or not to redirect HTTP traffic to HTTPS, removing HTTP access.

1: No redirect - Make no further changes to the webserver configuration.
2: Redirect - Make all requests redirect to secure HTTPS access. Choose this for
new sites, or if you're confident your site works on HTTPS. You can undo this
change by editing your web server's configuration.

Select the appropriate number [1-2] then [enter] (press 'c' to cancel): 2

Enabled Apache rewrite module Redirecting vhost in /etc/apache2/sites-enabled/gibbon.conf to ssl vhost in /etc/apache2/sites-available/gibbon-le-ssl.conf - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Congratulations! You have successfully enabled https://gibbon.example.com You should test your configuration at: https://www.ssllabs.com/ssltest/analyze.html?d=gibbon.example.com - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - IMPORTANT NOTES: - Congratulations! Your certificate and chain have been saved at: /etc/letsencrypt/live/gibbon.example.com/fullchain.pem Your key file has been saved at: /etc/letsencrypt/live/gibbon.example.com/privkey.pem Your cert will expire on 2020-10-23. To obtain a new or tweaked version of this certificate in the future, simply run certbot again with the "certonly" option. To non-interactively renew *all* of your certificates, run "certbot renew" - If you like Certbot, please consider supporting our work by: Donating to ISRG / Let's Encrypt: https://letsencrypt.org/donate Donating to EFF: https://eff.org/donate-le

Now, you can access Gibbon LMS over https.

So, this is how you can install Gibbon LMS on Ubuntu 20.04

The post How To Install Gibbon LMS On Ubuntu 20.04 appeared first on Linux Windows and android Tutorials.

Step 1: Update Your System

Make sure that your system is updated before starting the installation.

sudo apt update && sudo apt upgrade -y

Reboot your system if needed.

sudo reboot

And then install the other required packages by typing.

sudo apt install apt-transport-https ca-certificates curl gnupg-agent software-properties-common -y

After resolving the dependencies, move towards the next step.

Step 2: Install Docker & Docker Compose on Ubuntu 20.04

To install docker on Ubuntu 20.04, add the repostiory & then install the latest version as latest version is not present on Ubuntu default repository.

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -
add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"

After adding the repo hit the below command to install the docker & docker compose.

sudo apt-get install docker-ce docker-ce-cli containerd.io docker-compose -y

Verify the status by typing

sabi@Ubuntu20:~$ sudo systemctl status docker
● docker.service - Docker Application Container Engine
Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor prese>
Active: active (running) since Tue 2020-12-01 11:24:04 PKT; 23s ago
TriggeredBy: ● docker.socket
Docs: https://docs.docker.com
Main PID: 40347 (dockerd)
Tasks: 13
Memory: 48.9M
CGroup: /system.slice/docker.service
└─40347 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/co>
دسمبر 01 11:24:01 Ubuntu20 dockerd[40347]: time="2020-12-01T11:24:01.635102089>
دسمبر 01 11:24:01 Ubuntu20 dockerd[40347]: time="2020-12-01T11:24:01.635109806>
دسمبر 01 11:24:01 Ubuntu20 dockerd[40347]: time="2020-12-01T11:24:01.635117110>
دسمبر 01 11:24:01 Ubuntu20 dockerd[40347]: time="2020-12-01T11:24:01.635344751>
دسمبر 01 11:24:03 Ubuntu20 dockerd[40347]: time="2020-12-01T11:24:03.538423340>
دسمبر 01 11:24:03 Ubuntu20 dockerd[40347]: time="2020-12-01T11:24:03.870371403>
دسمبر 01 11:24:04 Ubuntu20 dockerd[40347]: time="2020-12-01T11:24:04.205068138>
دسمبر 01 11:24:04 Ubuntu20 dockerd[40347]: time="2020-12-01T11:24:04.205249608>
دسمبر 01 11:24:04 Ubuntu20 systemd[1]: Started Docker Application Container En>
دسمبر 01 11:24:04 Ubuntu20 dockerd[40347]: time="2020-12-01T11:24:04.245907850>
lines 1-21/21 (END)

See the installed version of docker by running

sabi@Ubuntu20:~$ docker -v
Docker version 19.03.13, build 4484c46d9d

For docker compose

sabi@Ubuntu20:~$ docker-compose -v
docker-compose version 1.25.0, build unknown

Step 3: Install OpenNMS On Ubuntu 20.04

Run the given command to create a project folder for OpenNMS.

sudo mkdir opennms

Now, switch to the created directory & create a new docker-compose.yml file in order to install OpenNMS.

cd opennms
sudo nano docker-compose.yml

Paste the below content into the file.

version: '3'
volumes:
data-postgres: {}
data-opennms: {}
services:
database:
image: postgres:12
container_name: database
environment:
- TZ=Europe/Berlin
- POSTGRES_USER=postgres
- POSTGRES_PASSWORD=postgres
volumes:
- data-postgres:/var/lib/postgresql/data
healthcheck:
test: [ "CMD-SHELL", "pg_isready -U postgres" ]
interval: 10s
timeout: 30s
retries: 3
horizon:
image: opennms/horizon:26.1.1
container_name: horizon
environment:
- TZ=Europe/Berlin
- POSTGRES_HOST=database
- POSTGRES_PORT=5432
- POSTGRES_USER=postgres
- POSTGRES_PASSWORD=postgres
- OPENNMS_DBNAME=opennms
- OPENNMS_DBUSER=opennms
- OPENNMS_DBPASS=opennms
volumes:
- data-opennms:/opt/opennms/share/rrd
- ./overlay:/opt/opennms-overlay
command: ["-s"]
ports:
- "8980:8980/tcp"
- "8101:8101/tcp"
- "61616:61616/tcp"
healthcheck:
test: [ "CMD", "curl", "-f", "-I", "http://localhost:8980/opennms/login.jsp" ]
interval: 1m
timeout: 5s
retries: 3

Save & exit the file. Then hit the given command to download & build the container for opennms.

sudo docker-compose up -d

Check the running container by typing

sudo docker ps -a

Output:

sabi@Ubuntu20:~/opennms$ sudo docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
a77e102ae833 opennms/horizon:26.1.1 "/entrypoint.sh -s" 17 minutes ago Up 18 seconds (health: starting) 0.0.0.0:8101->8101/tcp, 1162/udp, 0.0.0.0:8980->8980/tcp, 10514/udp, 0.0.0.0:61616->61616/tcp horizon
c4716857deef postgres:12 "docker-entrypoint.s…" 17 minutes ago Up 19 seconds (healthy) 5432/tcp database

Step 4: Accessing OpenNMS Via Web

Go to your favourite browser and access the OpenNMS by typing http://your-server-ip:8980. You’ll see the login page. Provide default credentails to login.

User:admin
Pass:admin

You’ll be redirected to the dashboard. Now, click on the “+” icon on the top right side to add new server node(device to be monitored).

Give it a name & press “OK”. You’ll see the similar screen.

Now, fill the required fields to add the new device to be monitored.

You’ll see a success message once added. Press “Ok” button

And navigate to the Info>>>Nodes to see the new device added.

So, this is how you can install OpenNMS on Ubuntu 20.04

The post How To Install OpenNMS On Ubutnu 20.04 appeared first on Linux Windows and android Tutorials.