Category: Debian

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How To Disable or Enable Selinux Temporarily or Permanently?

I have fedora desktop. I want to run some services but I get error about selinux. How can I disable selinux? Selinux is a security mechanism used generally linux systems. It has support from linux kernel. Selinux create context for specified services, applications and users. Prevent these to access unrelated...

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How To Check Java Version

Java is very popular programming language between open source community. Java is used for a lot of opensource projects. To run java applications it Java Run time Environment or Java Development Kit should be installed. We can check specific version java like below. Java Command Not Found

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How To List All Users and Groups in Linux

Users and group files are important for Linux. Normal users will interact with Linux systems by using credentials provided in the user ad group file. Print User File Named passwd We can get content of the user file like below.  This file provides usernames home directories and shell information.

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How To List MySQL/MariaDB Databases

I have some MySQL databases. I have no previous experience about MySQL. How can list existing databases with bash?MySQL and MariaDB are using same code base and tools. So we can use following instructions to list MariaDB too. Check Database Service First be sure MySQL/MariaDB service is running

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User Groups in Linux

I have heard that Linux have groups. I wonder that how can use groups in Linux ? Linux user groups are used to groups users so for privilege and permission issues can be solved for multiple users easily. For example if we have a file and want to read access...

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How To Shutdown Linux System?

I am new to Linux and I have installed some Linux distributions. I try to learn bash commands. I can shutdown my computer from Desktop manager easily. But How can I shutdown system from bash without a GUI. There are different ways to shutdown Linux system. Following commands will work...

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Install Dnsmasq As Cache Dns Server

We have a lot of computer in our network. Our network speed is not too much. Sometimes especially in mornings our internet connection slows down. How can solve this with some dns related tricks? Dns is one of the mostly used network protocol. It can effect the internet speed. Making...

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How To Start, Stop, Restart Networking On Linux?

I have changed my network configuration and want to restart to make changes effective. Or there are some problems with my network and I think restarting it will solve my problems. Here we will look how to restart networking service in various network distributions like Ubuntu, Debian, Fedora,CentOS. Get Status...

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