Category: Linux

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Linux file permissions explained: What you need to understand

Introduction In this article, I explain how Linux file permissions work. I use the Linux distribution Ubuntu. I’m an experienced Windows administrator and coming to Linux file permission is quite a change. With Linux, each file or directory has both a user and group that take ownership of it. This is in contrast to platforms

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Ubuntu manage users and groups

Ubuntu – Manage users and groups

I’m mainly a Windows administrator, but from time to time I administer the Linux environment. I use the Ubuntu distribution and in this article, I cover the long-term version of Ubuntu Server 20.04. Since I don’t use Linux often I struggle from time to time with permission. Therefore I decide to write down some important commands about creating users and groups with permission and the difference between root and a user with sudo rights. The sudo group is actually the Administrator group in the Linux universe.

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Fail2ban email notification

How to install Fail2ban with email notification

You might think “Oh no, not another “how to” about installing Fail2ban. I admit there are a lot of instructions available. However, I simply could not find a clear guide on installing Fail2ban with email notification. I love Fail2ban and use it for several Linux servers. For me, it is important to receive an email when Fail2ban triggers an action.

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