Today we will learn, How to change/reset/update MySQL root password. First, the most important thing is "Are you able to access the data using root credentials." If No, Please follow the below steps: Log-in to your server using SSH. Stop Mysql Service: For CentOS and Fedora, Run below command: 1service mysqld stop For …

Many time to secure our Linux server, we have to change the Default SSH port to some Custom port. Which is also a good practice to secure the servers. Today we will learn, how to change the Default SSH port (22 port) to your Custom port. To change the SSH port, please follow the below steps: Connect to your Linux …

We all need a monitoring tool to monitor our infrastructure. But to purchasing a monitoring tool will be costly. Today we will learn, how can we configured our own monitoring tool with a most popular open-source tool "Zabbix". Lets start installing Zabbix in Centos7. Let Assuming you have a Centos 7 Linux server. Step …

Today we will learn, How to install "atop" and "sysbench" in RHEL 7.X. Step 1: First update the packages: 1> yum update -y Step 2: Enable EPEL repo: 1> cd /tmp 2> wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm 3> ls *.rpm Step 3: Install "ATOP" 1> yum install atop -y Step 4: Install …

EC2 instances(Linux servers) don’t have password-based authentication by default. You have to use the SSH key to connect your Linux instances. But in some cases, you want to use password-based authentication for your ec2 instances. Or you want your users to access the server using password-based authentication. In this …

Today we will learn, How to enable the enhanced networking (ENA) in Centos/RHEL/Amazon Linux EC2 instances. Before moving further, un the following command to upgrade the kernel to the latest version:: 1 ▶ sudo yum upgrade kernel -y Now, Here are the steps that We have to taken in order to enable ENA: Step 1. Ensure …

Today we will upgrade our old m4.large RHEL instance to m5.large RHEL instance. But before doing this activity, we have to check if our instance is compatible or not. As C5,M5 instances support the next generation Elastic Network Adapter (ENA) technology. The C4,M4 instance use the Intel 82599 VF interface for enhanced …