A MAC (Media Access Control) address is a unique value assigned to a network interface card (NIC, also called network adapter) by the manufacturer to uniquely identify it. This tutorial...
Linux
When working as system administrator in the Linux, may be needed to perform network configurations. Before doing this, it can be useful to determine which network interfaces are available in...
In Linux system, a group is a collection of users which have the same permissions on files and directories. When working as system administrator, might need to add or remove...
In Linux system, a group is a collection of users which have the same permissions on files and directories. When working as system administrator, might need to delete a group...
In Linux system, a group is a collection of users which have the same permissions on files and directories. When working as system administrator, might need to create a group...
Shell is a command line interpreter. There are various shells in Linux. The bash shell is integrated in many Linux distributions. There also are ksh, zsh, tcsh. This tutorial provides...
System reboot may be required when troubleshooting issues, applying configuration changes, finishing application installation. Reboot resets all processes, free up memory, remove temporary files, etc. This tutorial provides 2 methods...
There are many ways to view contents of a file. Files which content changes very rarely can be viewed using cat command. Log files are dynamic and their content changes...
A hostname is a unique identifier that is assigned to a device (host) connected to the network. It allows to distinguish one device from another on a specific network. This...
SHA-224 is a cryptographic hash function that can be used for verifying file integrity. For example, to check that the file has not been modified during transfer over the network...