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How to Check the PowerShell Version on Windows

If you want to check which PowerShell version you are using, then execute either the command get-host or the command…

5 ways to check if your Linux OS is 64-bit or 32-bit

If you're a Linux newbie, you should know that there will be times - such as when installing packages -…

How to enable port 587 (submission) in postfix

pSome internet access providers have port 25 disabled in their routers to prevent spam. If you run your own email…

[Solved] system-config-firewall: command not found

When you get the error message "system-config-firewall: command not found" on your CentOS Server while trying to configure the firewall…

[Fixed] Google Chrome shows wrong colors after update

After a recent update of the Google Chrome browser, all websites had color issues and were displayed in the wrong…

How to get the status of a Linux software raid

The current status of a Linux software raid is written to the virtual file /proc/mdstat. You can view the status…

Manage the Postfix mail queue with postsuper, postqueue and mailq commands

Postfix provides several shell programs to manage the mail queue. These are: postsuper postqueue mailq In this tutorial, I will…

How to disable Cortana in Windows 10

Cortana is a new feature that comes packaged with Windows 10. The Cortana feature is very similar to Siri that…

Four ways to transfer your Data from One Windows PC to Another

When you move to a new Windows 10 or Windows 11 PC with shiny hardware (pc to pc file transfer),…

How to Eject the DVD Tray Using Windows 10

DVD drives provide you with the ability to play and use DVDs. However, sometimes people don't know how to access…

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