Linux and Unix tutorials for new and seasoned sysadmin
These tutorials assumes that you have strong understanding of Unix like operating systems and very comfortable with most aspects of the Unix/Linux operating system. Familiar with fundamental networking/distributed computing environments and concepts may be required. ( rss feed )
I need to reboot the VM or bare metal Linux machine/server using Ansible and wait for it to come back, but it does not work with playbook as descried here. How to reboot Linux server with Ansible? How do I reboot and wait for reboot to complete in Ansible playbook for multiple Linux servers?
By default, Lightsail will install Ubuntu 16.04 LTS. How do I upgrade to Ubuntu Linux 18.04 LTS when using AWS Lightsail cloud server? How do I upgrade to a newer version of Ubuntu such as Ubuntu Linux 18.04 LTS?
How do I install and secure Nginx with Let’s Encrypt on Ubuntu 18.04 with DNS validation API? My domain DNS hosted with Cloudflare. How do I install Let’s Encrypt to create SSL certificates with Nginx web server running on an Ubuntu Linux 18.04 LTS server?
I have some data on second SATA hard disk created by Fedora Linux installer with some data. How do I mount an LVM volume/partition in Linux to access my data? Can you tell me the command to mount LVM partition in Linux?
How can I install LXD pure-container hypervisor on Ubuntu 18.04 LTS to runs unmodified Debian/Ubuntu/CentOS Linux operating systems VM at incredible speed? How do I setup and use LXD on Ubuntu Linux server?