Rajesh Kumar

What is KDDI? KDDI is a major Japanese telecommunications operator, established in October 2000 through the merger of DDI, KDD, and IDO. It is the second-largest cellular operator in Japan after NTT DoCoMo and provides a wide range of services, including cellular services, fixed-line communications, and Internet services. KDDI operates under the “au” brand for…

Below is an Ansible playbook script that performs the following actions sequentially: This playbook assumes the target systems are using a Debian-based distribution like Ubuntu, as it utilizes the apt module for package management. Adjustments might be needed for other distributions.

Sending an email directly from cloud virtual machines (VMs) like AWS EC2, Azure VM, or Google Cloud Compute Engine using command-line tools such as mail or sendmail can be a straightforward task, but it does require some initial setup and consideration of the cloud provider’s policies and limitations. Here’s a general guide on how to…

When sending emails from the command line using utilities like mail, mailx, or sendmail, troubleshooting can involve several steps to ensure that the email is sent properly and to diagnose any issues with email delivery. Here’s a comprehensive guide on how to trace and troubleshoot email sending on Unix-like systems: 1. Check the Command Syntax…

Scenario I recieved these errors while sending an email from AWS Ec2 instance to google mail services. Error Issues and Solution The error message (Deferred: Connection timed out with aspmx3.googlemail.com.) indicates that your EC2 instance tried to send an email, but the connection to the recipient’s email server (in this case, a server used by…

Circles.Life is a brand under Liberty Wireless. Liberty Wireless, a digital telecommunications company based in Singapore, established Circles.Life as its mobile brand. In July 2015, Liberty Wireless signed an agreement with M1 Limited to utilize M1’s network, allowing Liberty Wireless to operate as a mobile virtual network operator (MVNO) and launch the Circles.Life brand .…

Open-source Event Streaming Platforms: Apache Kafka: Highly scalable and reliable platform for high-volume data streams, widely used for building real-time applications. Apache Pulsar: Distributed streaming platform with strong messaging capabilities and support for multiple protocols. Apache Flink: Stream processing engine for analyzing and reacting to data streams in real-time. Apache RocketMQ: High-performance, open-source messaging platform…

Medical tourism has become a crucial sector in global healthcare, providing international patients with access to a wide range of surgeries and treatments abroad. Several websites have established themselves as exceptional in facilitating these international health travels, offering comprehensive information, guidance, and support. Below is a brief introduction to some of the leading websites in…

The identity of a region is often captured in its name, a symbolic representation of its history, culture, and people. In the heart of India, Bihar stands as a testament to centuries of tradition, with Chhath Pooja at its core. This ancient festival, revering the Sun God, is not just a celebration but a deep-seated…