linux tricks

How to Check and Disable Selinux in Centos7/8, RHEL 7/8

How to check and disable Selinux  in Centos7/8, RHEL 7/8 SELinux – Security-Enhanced Linux It is a security architecture that gives you more control over the system that others can access. It was integrated into Linux in 2003. SELinux is enabled by default and you can check SELinux status with the command sestaus. SELinux usage …

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How to Use and Enable/Disable Firewall in Centos7/8, RHEL 7/8

How to Check and Disable Firewall  in Centos7/8, RHEL 7/8 As we know the firewall is very important for our system or server security. In some cases where you have an external firewall in your network or you are using a different firewall, you need to disable the firewall. Few sysadmins disable the firewall for …

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SSH Without Password in Linux/RHEL/Centos/Ubuntu

SSH Without Password in Linux/RHEL/Centos/Ubuntu Easy Steps Here in our article, we will show you how to log in to another Linux machine using ssh secure key without a password. This ssh passwordless authentication will work on almost every Linux distribution RHEL, Centos, Fedora, Ubuntu. Our Setup In this setup, we will take the example …

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How To Reduce vdi Size in VirtualBox and Free Disk Unused Space | Linux Servers

How To Reduce vdi Size in VirtualBox and Free Disk Unused Space VirtualBox is an oracle hypervisor that we install in our base machine or laptop to use another guest OS in this. Virtual box and we always select dynamically allocated disk which will increase as we add data in guest OS. But it does …

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