Mongodump is a simple MongoDB backup tool that generates high-quality BSON files inside the MongoDB database. It is a good backup option for small MongoDB instances due to its ease of use and portability. This tool offers commands for backing up data at the query, collection, or database level. Furthermore, MongoDB has a complimentary tool called mongorestore, which allows you to restore data from distributed backups to a new or existing MongoDB database. So, now let’s follow the steps to backup and restore data using the Mongodump database command. Create Direct Backups To run mongodump, u ..read more

  Let’s see the three efficient methods to upgrade from ESXi 7 to ESXi 8 and ensure a smooth transition while optimizing your virtualization environment with this guide. Before upgrading to ESXi 8, make sure to review the ESXi requirements such as hardware and compatibility requirements. When upgrading, consider the three different ways and choose the one that best fits your setup and requirements. Using the ISO Using the command line Using vSphere Lifecycle Manager Note: While upgrading ESXi hosts, you must ensure to update the vCenter Server first. If you fail to upgrade your environ ..read more

HAProxy is a free open-source load balancer, a high-performance, and proxy server for TCP and HTTP-based applications. It distributes the workload between the web and application servers. It is specifically developed for high-traffic websites to improve performance, availability, and redundancy. Because of Haproxy’s reliability, efficiency, and low memory and CPU footprint, it is widely used for load balancing. Load balancing is a popular solution to distribute web applications horizontally across multiple servers while providing users with a single point of access to the service. Let us see ..read more

Let’s delve into the intricacies of Rancher Vs OpenShift. Here, we have discussed their features, capabilities, and performance to assist you in making informed decisions for your enterprise solutions. Rancher and OpenShift are Kubernetes cluster managers. They enable Kubernetes to be managed and used via a web console and CLI. Rancher can handle multiple Kubernetes clusters, but OpenShift requires the Advanced Cluster Management add-on to their maintenance plan. There are numerous connections between the two products (Rancher Vs OpenShift) because they are container orchestration platforms cl ..read more

APT, or Advanced Package Tool, is a package management system that manages, installs, and removes software packages on Debian-based Linux distributions like Ubuntu. APT is not a single command, but it’s a set of tools delivered as packages, including apt, apt-cache, and apt-get. Though it makes software management easier what if it does not work and you receive the “Apt Get-Command Not Found” error message? Let us see how to fix and access the apt command without error. Apt-get Command Apt-get is a command-line tool for handling packages on Linux distributions. It allows users to easily insta ..read more

If you are experiencing a DNS server error, use the following command line to troubleshoot the IP address that the domain currently points to. The nslookup command enables Windows users to troubleshoot DNS issues through the command line. Check IP configuration Open a command prompt and enter ipconfig/all to verify the IP address, subnet mask, and default gateway. Verify if the DNS server is authoritative for the specific name being searched. Enter the following commands: nslookup <name> <IP address of the DNS server> To clear the resolver cache, enter the following commands in ..read more

  Before setting up the Kubernetes environment, you must install the Docker: docker-ce:18.06 or above, Kubectl, and Minikube in the cloud instance. Let us see the steps to run the Kubernetes on the AWS cloud with the Minikube cluster. Step 1: Start an AWS EC2 instance First, go to AWS Management Console > Services > EC2. Then Launch Instance. For the Instance, use the following settings: Choose an Amazon Machine Image (AMI) and select Ubuntu Server 18.04 LTS (HVM), SSD Volume Type. Choose the Instance type as t2.medium Change the instance type from t2.micro (1 vCPU) to t2.mediu ..read more

AlmaLinux is a potential replacement for CentOS and is compatible with all CentOS services and applications. AlmaLinux is a free open source product with no licenses or restrictions and the current 8.3 version is supported until 2029. Ensure you have created a Linode account and Compute Instance before we start, also set the timezone, configure hostname, create a limited user account, and harden SSH access. Make sure you have installed AlmaLinux already in order to proceed with the Apache installation. You can check the  GitHub site for the instructions to switch to AlmaLinux.   ..read more

Now you can setup your DNS server to 8.8.8.8 in Linux by following the below steps. The DNS translates domain names into IP addresses and acts as a directory service for the internet, which is responsible for resolving domain names to IP addresses. If you see by default, your Linux system will use the DNS servers provided by your internet service provider, but you might want to use a different DNS server for various reasons. By opting 8.8.8.8 as your DNS server, you tap into the services provided by Google’s Public DNS, known for its speed, reliability, and security. Check the current DNS Ser ..read more

Kubernetes is an open-source that allows you to manage containerized apps everywhere without changing the operational method. With Kubernetes, you can manage any application across multiple cloud or on-premises. AWS makes it easy to use Kubernetes. Here, you can manage Kubernetes by yourself using Amazon EC2. Before installing Kubernetes on Amazon Linux EC2, you must create and connect with an EC2 instance. Then install the Docker container and Kubernetes and verify the process. So now let us see the prerequisites to install Kubernetes. To Create an EC2 Instance Open the AWS EC2 dashboard on ..read more