How to install Oracle Database 19c on Oracle Linux or RHEL 8 step by step

In this article, we are going see how to install Oracle Database 19c on Oracle Linux or RHEL 8 step by step.

We are going to see installation of Oracle database 19c on Oracle linux: Continue reading How to install Oracle Database 19c on Oracle Linux or RHEL 8 step by step

Got permission denied while trying to connect to the Docker daemon socket

In this article, we will solution for below error.

Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get "http://%2Fvar%2Frun%2Fdocker.sock/v1.24/images/json": dial unix /var/run/docker.sock: connect: permission denied

Got permission denied while trying to connect to the Docker daemon socket
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How to install Docker on Ubuntu 22.04 LTS

In this article, we will see How to install Docker on Ubuntu 22.04 LTS step by step.

Prerequisites to install Docker on Ubuntu:

OS Requirements:

To install Docker Engine, we need the 64-bit version of one of these Ubuntu versions:

Ubuntu Jammy 22.04 (LTS)
Ubuntu Impish 21.10
Ubuntu Focal 20.04 (LTS)
Ubuntu Bionic 18.04 (LTS)

Continue reading How to install Docker on Ubuntu 22.04 LTS

How to install docker on Windows 11

In this article, we will see how to install docker on Windows 11 step by step.

Docker is an OS-level virtualization software platform that helps users in building and managing applications in the Docker environment with all its library dependencies.

Prerequisites to install Docket on Windows:

  • Windows 11 64-bit: Home or Pro version 21H2 or higher, or Enterprise or Education version 21H2 or higher.
  • Windows 10 64-bit: Home or Pro 2004 (build 19041) or higher, or Enterprise or Education 1909 (build 18363) or higher.
  • Enable the WSL 2 feature on Windows. For detailed instructions, refer to the Microsoft documentation.

    • The following hardware prerequisites are required to successfully run WSL 2 on Windows 10 or Windows 11:

  • 64-bit processor with Second Level Address Translation (SLAT)
  • 4GB system RAM
  • BIOS-level hardware virtualization support must be enabled in the BIOS settings.

Download Docker for Windows

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Docker unknown shorthand flag: ‘a’ in -aq)

In this article, we will solution for the Docker error unknown shorthand flag: ‘a’ in -aq).

C:\Users\r2schools>docker kill $(docker ps -aq)
unknown shorthand flag: 'a' in -aq)
See 'docker kill --help'.

C:\Users\r2schools>docker kill $(docker ps -q)
unknown shorthand flag: 'q' in -q)
See 'docker kill --help'.

Docker unknown shorthand flag: 'a' in -aq)

Reason and Solution for Docker unknown shorthand flag: ‘a’ in -aq)

Reason: We receive this docker error in Windows operating systems. But only when we use CMD(command prompt).

Solution: We have to run above command either in PowerShell or Git Bash

This error does not generated in Linux terminals with docker.

docker: Error response from daemon: Conflict. The container name is already in use by container

In this article, we will see the solution for below error.

docker: Error response from daemon: Conflict. The container name "/mysql101" is already in use by container "3258898f66a7a5fe45e5f00f870a97bcf82e700d60a3621a5a085710e8fa6e28". You have to remove (or rename) that container to be able to reuse that name.
See 'docker run --help'.

dockerv Error response from daemon Conflict The container name is already in use by container

It looks like a container with the name already exists in the system. We can check the output of the below command to confirm if it indeed exists:
Continue reading docker: Error response from daemon: Conflict. The container name is already in use by container

How to open Task Manager in Windows 11

In this article, we will see how to open Task Manager in Windows 11 with different methods.

What is task manager?
Task manager is system monitor tool that provides information about the processes and programs running on a computer.

Unlike previous Windows operating systems, we cant open open Task Manager from taskbar in Windows 11. Following are the different ways to open Task Manager in Windows 11 operating system.

How to open Task Manager in Windows 11

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INS-30014 Unable to check whether the location specified is on CFS on Windows 11

In this article, we will see the reason and solution for below error. I have received this error when tried to install Oracle 19c database on Windows 11.

INS-30014 Unable to check whether the location specified is on CFS

INS-30014 Unable to check whether the location specified is on CFS

Reason for INS-30014 Unable to check whether the location specified is on CFS

Continue reading INS-30014 Unable to check whether the location specified is on CFS on Windows 11