I use ansible-playbook to update my VMs and bare metal servers hosted in a remote data center. How do I tell, whether the Ubuntu Linux server requires a reboot using the command line over ssh based session?
When I log in to my Ubuntu Linux 16.04 LTS AWS cloud server, I get the message on screen: /dev/xvda2 should be checked for errors. I can not run fsck command on /dev/xvda1 because it is mounted. How do I check my disk for error without corrupting data?
I have two VPS running in the cloud. The first one is the database, and another one is the web server. I want to secure traffic that flows between private network which is insecure by design and I do not want to use OpenVPN due to complex settings. How do I install and setup tinc VPN server and secure my traffic over VPN on Ubuntu Linux 16.04 LTS server?
I want to disable the message of the day (motd) welcome message after I login over ssh on Ubuntu Linux. How do I disable motd on Ubuntu Linux 17.04?
I am using LXD (“Linux Container”) on Ubuntu Linux serer. How do I list all available VM images for installation in the LXD image store?
I wanted to see if a specific port of a desktop computer or server is open from a Linux or Unix command line shell. How do I ping a specific port? Is it possible possible to ping an 192.168.1.254:80 or 192.168.1.254:23 ports?
I am a new Debian Linux server user. How can I display a log of actions taken by the apt-get command or apt command or dnf command or yum command software management command?