ow do I change my default shell in Linux?
am a new Linux server sysadmin. I need to delete the PREROUTING rule. How do I delete the prerouting rule on Linux server?
have a bunch of servers powered by Ubuntu and Debian Linux. How do I update all of them using the apt module of Ansible? How can I use Ansible for system updates and reboot the box when kernel upgrades took place?
increased the size of the volume in Linux using my cloud service providers’ online tool. My original disk size was 200GB, and I grew to 400GB. However, I only able to use 200GB and not 400GB. How do I resizing my disk and extend the file system resizing a disk volume?
have ThinkPad P1 Gen 2 or X1 Extreme 2nd Laptop. Can I easily Install ThinkPad firmware updates on Linux using GUI?
an you explain DEBIAN_FRONTEND apt or apt-get variable? How and why I need to use this in Docker or shell scripts under a Debian and Ubuntu Linux?
removed and installed Ubuntu Linux 16.04 LTS on my development Lenovo laptop. However, I need to use my Windows 10 pro in KVM VM for running the accounting app. How do I find and print my embedded Windows 10 pro key from a Linux command line option? How can I retrieve Microsoft Windows 8 and 10 OEM product key from BIOS?