How Linux Works? Kernel Internal Explained!
“Linux” refers to the Linux kernel, the core of many operating systems (known as distributions, or “distros”) that manage a […]
How to enable IMDSv2 in multiple EC2 instance AWS: Shell Script & Terraform & SSM
IMDSv2 (Instance Metadata Service Version 2) is a more secure iteration of the Instance Metadata Service provided by Amazon EC2. […]
How to upgrade aws MSK Apache Kafka from 2.4.1 to 3.5.1
You can upgrade an existing AWS MSK cluster running Apache Kafka 2.4.1 to version 3.5.1. Here’s what you need to […]
How to Install and configure Logroate in Linux?
almalinux os To configure logrotate in AlmaLinux, you can follow these steps to ensure your system logs are properly managed […]
List of Checklist of Apache Solr Configuration to Improve Solr Performance
Solr Configuration Files Indexing Performance Sharding and Replication Solr Cloud Configuration Upgrade Latest version of Solr Solr 5.0 February 2015 […]
Apache Solr Architecture. How Apache Solr works?
How Apache Solr works? Apache Solr is a powerful, scalable open-source search platform built on Apache Lucene, which is a […]
Apache Solr: What is Core and How to Create it?
What is Apache Solr Core? In Solr terminology, there is a sharp distinction between the logical parts of an index (collections, shards) […]
Apache Solr Commands line Options
Here’s a table summarizing some common Solr command-line options along with their descriptions: Command Description start Starts Solr. Can include […]
Apache Solr Errors and Solutions
Error Solution The warning messages indicate a couple of issues with running Solr: Adjusting the system settings for file and […]
Terminology used in Apache Solr
General Solr Terminology: SolrCloud Terminology (for distributed deployments): In Solr terminology, there is a sharp distinction between the logical parts of an […]
Apache Solr Installation and Configurations
System Requirements The system requirements for Apache Solr vary depending on the scale of your deployment and the specific workload. […]
What is Apache Solr?
Solr is a standalone enterprise search server with a REST-like API. You put documents in it (called “indexing”) via JSON, […]
List of Major Versions of Solr
Here’s a table summarizing the major versions of Apache Solr, a popular open-source search platform, and highlighting a major feature […]
What is Vector Space Model?
The Vector Space Model (VSM) is a technique used in information retrieval (IR) to analyze and compare text documents. It […]
What is POVO & KDDI? What is difference between POVO and KDDI?
What is KDDI? KDDI is a major Japanese telecommunications operator, established in October 2000 through the merger of DDI, KDD, […]
Ansible Playbook: Retrieves a list of installed packages along with their versions before & After upgrading
Below is an Ansible playbook script that performs the following actions sequentially: This playbook assumes the target systems are using […]
How to Send an email from AWS ec2 or Azure VM or Google Instance using mail or sendmail linux commands
Sending an email directly from cloud virtual machines (VMs) like AWS EC2, Azure VM, or Google Cloud Compute Engine using […]
Troubleshooting Guide: mail, mailx & sendmail commands when sending an email
When sending emails from the command line using utilities like mail, mailx, or sendmail, troubleshooting can involve several steps to […]
Error: Connection timed out with aspmx3.googlemail.com & Network is unreachable
Scenario I recieved these errors while sending an email from AWS Ec2 instance to google mail services. Error Issues and […]
What is Circles.Life?
Circles.Life is a brand under Liberty Wireless. Liberty Wireless, a digital telecommunications company based in Singapore, established Circles.Life as its […]