To avoid such conflicts, the OS provisioning base image is managed by a reliable Network Manager. It performs basic network initialization and then provides networking configuration boot parameters. The boot parameters will boot the operating system and then configure the tftp server to go to configuration file via network boot. We can then run the install.sh or install.shc script on the server to install Linux from operating system package.
Network Manager provides service discovery and configuration tools for managing the network. It can automatically find and configure network services and collect minimal required device information. The main advantage of Network Manager is it allows a unity of the configuration discipline on services on the OS. From a networking perspective, this means it is easier to manage. On a production, it allows you to plan the network evolvement and keep the infrastructure monolithic.
The Boot Process is the process of starting up a computer. The process starts with a chain of basic operations, which include initialization and the boot loader. Our focus is on the booting process. How to boot a machine into an operating system.
The /etc/login.defs file is where you’ll find the user account information. The /var/log/auth.log file reveals the authentication information, including username, domain, login and shell. The /etc/default/grub is where you’ll find GRUB configuration files.
To have a capability to run multiple Linux systems simultaneously, the Userland utilities are multithreaded. This is to allow a context to be switched from userland to kernel for execution after a certain amount of time. To utilize multiple physical cores without any duplicated functionality, the operating system (OS) kernel has to be multithreaded and the application and its supporting libraries should also be multithreaded. d2c66b5586