Installation:

There are three step to install module in magento 2

• Using Composer
• From Marketplace.magento.com
• From Github

Using Composer:

From the installation guide,collect the composer command like folllows:

omposer require mageplaza/magento-2-blog-extension
php bin/magento setup:upgrade
php bin/magento setup:static-content:deploy
php bin/magento cache:flush

Note:Using composer, module always save on vendor package automatically

From Marketplace.magento.com:

Go to Marketplace.magento.com/ and create an account,login and create public key as username and private key as password

Choose free module and add to card and checkout and download and create namespace, module name in the location app/code/ and extract module and run the following command

php bin/magento setup:upgrade
php bin/magento module:status
php bin/magento module:enable module_name
php bin/magento cache:flush

From Github:

Go to Github and download zip

create namespace, module name in the location app/code/ and extract module and run the following command

php bin/magento setup:upgrade
php bin/magento module:status
php bin/magento module:enable module_name
php bin/magento cache:flush

Module setup / configuration:

Step-1:Login admin panel and go to store->configuration and input essential info

Step-2:Go to dashboard-> module menu and setup essential info

Step-3:Go to system->cash management-> magento flush cache