Today I will show you, how can you create you private and public key using ssh-keygen command. Connect to you Linux system. Open Linux terminal. Run below command to generate keys. 1ssh-keygen -t rsa -b 2048 Enter the name of the key and press Enter Now private and public key has been generated. Now you can use those …

Today I will show you, how can you get SSH private key from AWS console and convert that key into public key. So, that you can use that key for create a SSH user. So, First lets with downloading a key from AWS Console. To create your key pair. Please follow the below steps: Open the Amazon EC2 console at …

Today we will create new user that can connect to my Linux instance/Server using SSH key Authentication method. When you launches a Linux server, a default system user account created with administrative access to the server. If you wants multiple users access to the instance, it's a security best practice to create a …

Today, we faced a problem where our client application was not working because of the database connection issue. I have checked and found that their credentials were incorrect. As per the client, this was that same credentials which their application was using. So, To resolve the problem, we decided to reset the root …

Today we will learn, How to extend your AWS EC2 EBS volume disk without Downtime. If you are using Windows you can easily extend your EBS drive without downtime and without any problem. You can use this link for window process. But if come to Linux, Disk extend part will become some headache. So, Let start the process …

Hello Everyone, Today we will learn How to create FTP user in Linux/EC2 server. We will use this ftp user to connect our Linux server from our local machine via Filezilla or other FTP clients. So, First connect the Linux Server: Install FTP Server(vsftpd) For Ubuntu: sudo apt-get install vsftpd For Centos or …

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 …