All Posts

Linux| Linux firewalls

The Firewall A firewall is a set of rules. When a data packet moves into or out of a protected network space, its contents (in particular, information about its origin, target, and the protocol it plans to use) are tested against the firewall rules to see if it should be allowed through.

Linux | Basic Commands

Usage Note: Hold option (alt) and click a position in the current line to move your cursor to that position. Clear history: ctrl + l

Linux | File Permissions

File Permissions - chmod Linux has inherited from UNIX the concept of ownerships and permissions for files. This is basically because it was conceived as a networked system where different people would be using a variety of programs, files, etc.

Linux Intro

What is Linux? Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds.

Powershell - Information Collection

Collecting Information About Computers Cmdlets from CimCmdlets module are the most important cmdlets for general system management tasks. All critical subsystem settings are exposed through WMI.

Powershell - CHange State

Basic commands to change computer state (shutdown, restart, lock) To reset a computer in Windows PowerShell, use either a standard command-line tool or a WMI class.