You can install the MySQL client programs for RDS on Amazon Linux AMI using the following steps: Install the MySQL repository: Run the following command to install the MySQL repository: wget https://repo.mysql.com/mysql80-community-release-el7-1.noarch.rpm sudo yum localinstall mysql80-community-release-el7-1.noarch.rpm Install the MySQL client programs: Use the following command to install the MySQL client programs: sudo yum install mysql-community-client … Read more

You can remove all unused old kernels on Ubuntu 18.04 using the following steps: Check the installed kernels: Run the following command to check the list of installed kernels on your system: dpkg –list | grep linux-image This will show a list of all the installed kernels, including the current one you are using. Remove … Read more

To change the netplan renderer from networkd to NetworkManager on Ubuntu, you can follow these steps: Open the netplan configuration file: Run the following command to open the netplan configuration file in a text editor: sudo nano /etc/netplan/50-cloud-init.yaml Change the renderer: In the configuration file, you will see the “networkd” renderer specified. Change this to … Read more

To set up Apache with Let’s Encrypt Certificates on CentOS 8/9, you can follow these steps: Install the certbot-apache package using the command: sudo dnf install certbot-apache Run the command to obtain the SSL certificate: sudo certbot –authenticator apache -installer apache Follow the prompts to enter your email address and agree to the terms of … Read more

Here are the steps to install MariaDB on CentOS 8: Update the package manager: Run the following command to update the package manager and ensure that it has the latest package information: sudo dnf update Add the MariaDB repository: To install MariaDB on CentOS 8, you will need to add the MariaDB repository to your … Read more

To install the whois command on RHEL 8 / CentOS 8, you can use the package manager dnf: sudo dnf install whois This will install the whois package, which provides the whois command-line tool for querying domain name registration information. Once installed, you can use the whois command to look up information about a domain … Read more

To install wget on CentOS 8/9 using the yum/dnf command, use the following command: sudo dnf install wget You may need to run sudo dnf update before running the above command to ensure that you have the latest package list. You can also use yum instead of dnf. sudo yum install wget After installation you … Read more

The dig command is not installed by default on CentOS 8, but it can be easily installed using the package manager. Here are the steps to install dig on CentOS 8: Update the package manager: Run the following command to update the package manager and ensure that it has the latest package information: sudo dnf … Read more

There are a few ways to run a command with a time limit (timeout) on Linux. Here are a few options: Using the timeout command: The timeout command is a coreutils utility that can be used to run a command with a specified time limit. The syntax is as follows: timeout <duration> <command> For example, … Read more

To set up a firewall using FirewallD on CentOS 8, you can follow these steps: Make sure FirewallD is installed on your system by running the command: sudo yum install firewalld Start and enable the firewall service by running the commands: sudo systemctl start firewalld sudo systemctl enable firewalld To check the status of the … Read more