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aman

Asked: 31-07-24

To get or set up phpMyAdmin to use a specific username and password on an EC2 Ubuntu instance, you need to interact with the MySQL or MariaDB database. Here's how you can do it:

0

Steps to Get or Set Up phpMyAdmin Username and Password

Connect to Your EC2 Instance

Connect to your EC2 instance using SSH:

ssh -i /path/to/your-key.pem ubuntu@your-ec2-instance-public-dns

Access the MySQL or MariaDB Database

If you have MySQL or MariaDB installed, log in as the root user (or another administrative user):

sudo mysql -u root -p

If sudo mysql doesn't work, you can try:

mysql -u root -p

Check Existing Users

Once logged in, you can list the existing users:

sql

SELECT User, Host FROM mysql.user;

Create a New User (if needed)

If you need to create a new user for phpMyAdmin:

sql

CREATE USER 'phpmyadmin_user'@'localhost' IDENTIFIED BY 'your_password';

GRANT ALL PRIVILEGES ON *.* TO 'phpmyadmin_user'@'localhost' WITH GRANT OPTION;

FLUSH PRIVILEGES;

Update Password for an Existing User

If you need to update the password for an existing user:

sql

ALTER USER 'existing_user'@'localhost' IDENTIFIED BY 'new_password';

FLUSH PRIVILEGES;

Configure phpMyAdmin to Use the Credentials

Ensure that phpMyAdmin is configured to use the correct MySQL credentials. Edit the config.inc.php file:

sudo nano /var/www/html/phpmyadmin/config.inc.php

Add or update the following lines with your username and password:

php

$cfg['Servers'][$i]['auth_type'] = 'cookie';

$cfg['Servers'][$i]['user'] = 'phpmyadmin_user';

$cfg['Servers'][$i]['password'] = 'your_password';

Save and close the file.

Access phpMyAdmin

Open your web browser and navigate to:

http://your-ec2-instance-public-dns/phpmyadmin

Log in with the username and password you set up.

Additional Tips

Security: For security reasons, avoid using the root MySQL user for phpMyAdmin. Create a dedicated user with limited privileges.

User Permissions: Ensure the user has the necessary permissions to access the databases you need.

Secure Connection: Use HTTPS to access phpMyAdmin to secure the transmission of your credentials.

aman

Asked: 31-07-24

To downgrade the PHP version to 7.3 on an EC2 instance running Ubuntu, you need to remove the current PHP version and install PHP 7.3. Here are the steps to achieve this:

0

Step-by-Step Guide

Connect to Your EC2 Instance

Connect to your EC2 instance using SSH:

ssh -i /path/to/your-key.pem ubuntu@your-ec2-instance-public-dns

Remove Current PHP Version

First, you need to remove the currently installed PHP version. You can list the installed PHP packages and remove them:

sudo apt list --installed | grep php

Then remove the listed PHP packages (e.g., php8.1):

sudo apt-get purge 'php*'

sudo apt-get autoremove

Add PHP 7.3 Repository

You need to add the repository that contains PHP 7.3. The ondrej/php repository is commonly used for this purpose:

sudo apt-get install software-properties-common

sudo add-apt-repository ppa:ondrej/php

sudo apt-get update

Install PHP 7.3

Now, install PHP 7.3 and the necessary extensions:

sudo apt-get install php7.3

sudo apt-get install php7.3-cli php7.3-fpm php7.3-mysql php7.3-xml php7.3-mbstring php7.3-curl php7.3-zip

Configure Apache or Nginx to Use PHP 7.3

If you are using Apache:

sudo a2enmod php7.3

sudo systemctl restart apache2

If you are using Nginx, you need to configure Nginx to use PHP 7.3 by editing the server block configuration file:

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

Update the fastcgi_pass directive to point to the PHP 7.3 FPM socket:

nginx

Copy code

location ~ \.php$ {

include snippets/fastcgi-php.conf;

fastcgi_pass unix:/var/run/php/php7.3-fpm.sock;

fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;

include fastcgi_params;

}

Save the file and restart Nginx:

sudo systemctl restart nginx

sudo systemctl restart php7.3-fpm

Verify PHP Version

To verify that PHP 7.3 is installed and configured correctly, you can check the PHP version:

php -v

You can also create a phpinfo() file to check the PHP version through your web server:

echo "<?php phpinfo(); ?>" | sudo tee /var/www/html/phpinfo.php

Navigate to http://your-ec2-instance-public-dns/phpinfo.php in your web browser and verify that PHP 7.3 is being used.

aman

Asked: 31-07-24

To give permissions to a whole directory in Ubuntu on an EC2 instance, you will need to use chown and chmod commands to set the appropriate owner, group, and permissions. Here’s how you can do it:

0

Steps to Give Permissions to a Whole Directory

Connect to Your EC2 Instance

Connect to your EC2 instance using SSH:

ssh -i /path/to/your-key.pem ubuntu@your-ec2-instance-public-dns

Change the Owner and Group of the Directory

To change the owner and group of a directory and all its contents, use the chown command with the -R (recursive) option. For example, if your web server user is www-data (commonly used for Apache and Nginx), you can do the following:

sudo chown -R www-data:www-data /path/to/your/directory

Set the Directory Permissions

To set the directory permissions, use the chmod command. You can set different permissions based on your requirements:

Full Permissions (rwx) for the Owner and Group, and Read and Execute (r-x) for Others:

sudo chmod -R 775 /path/to/your/directory

Full Permissions (rwx) for the Owner, and Read and Execute (r-x) for Group and Others:

sudo chmod -R 755 /path/to/your/directory

Full Permissions (rwx) for the Owner, and No Permissions for Others:

sudo chmod -R 700 /path/to/your/directory

Verify Permissions

You can verify the permissions and ownership of the directory using the ls -l command:

ls -l /path/to/your/directory

Example: Giving Permissions to a Web Directory

If you are setting up a web directory for a Laravel project, you typically want to give the web server user (e.g., www-data) ownership and appropriate permissions:

sudo chown -R www-data:www-data /var/www/your-laravel-project

sudo chmod -R 755 /var/www/your-laravel-project

For the storage and cache directories, which need write permissions, you can set:

sudo chmod -R 775 /var/www/your-laravel-project/storage

sudo chmod -R 775 /var/www/your-laravel-project/bootstrap/cache

To get or set up phpMyAdmin to use a specific username and password on an EC2 Ubuntu instance, you need to interact with the MySQL or MariaDB database. Here's how you can do it:

To downgrade the PHP version to 7.3 on an EC2 instance running Ubuntu, you need to remove the current PHP version and install PHP 7.3. Here are the steps to achieve this:

To give permissions to a whole directory in Ubuntu on an EC2 instance, you will need to use chown and chmod commands to set the appropriate owner, group, and permissions. Here’s how you can do it:

To get or set up phpMyAdmin to use a specific username and password on an EC2 Ubuntu instance, you need to interact with the MySQL or MariaDB database. Here's how you can do it:

To downgrade the PHP version to 7.3 on an EC2 instance running Ubuntu, you need to remove the current PHP version and install PHP 7.3. Here are the steps to achieve this:

To give permissions to a whole directory in Ubuntu on an EC2 instance, you will need to use chown and chmod commands to set the appropriate owner, group, and permissions. Here’s how you can do it:

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Questions & Answers

To get or set up phpMyAdmin to use a specific username and password on an EC2 Ubuntu instance, you need to interact with the MySQL or MariaDB database. Here's how you can do it:

Questions & Answers

To downgrade the PHP version to 7.3 on an EC2 instance running Ubuntu, you need to remove the current PHP version and install PHP 7.3. Here are the steps to achieve this:

Questions & Answers

To give permissions to a whole directory in Ubuntu on an EC2 instance, you will need to use chown and chmod commands to set the appropriate owner, group, and permissions. Here’s how you can do it:

To get or set up phpMyAdmin to use a specific username and password on an EC2 Ubuntu instance, you need to interact with the MySQL or MariaDB database. Here's how you can do it:

To downgrade the PHP version to 7.3 on an EC2 instance running Ubuntu, you need to remove the current PHP version and install PHP 7.3. Here are the steps to achieve this:

To give permissions to a whole directory in Ubuntu on an EC2 instance, you will need to use chown and chmod commands to set the appropriate owner, group, and permissions. Here’s how you can do it: