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Manage group accounts and group membership in the Linux operating system. Command Function Flags groupadd Creates a new group. -g (Defines the group ID)-p (Defines the group password)-r (Makes the new group a system group) groupmod ...

The notion that a network needs to be accessible to more than just a well-defined group of employees. Organizations might need to open parts of it network to partners, suppliers, and customers. It's relatively easy to manager your own employees, but managing ...

A patch management tool that allows client on a network to download software updates from an internal WSUS server in their organization. Organizations manage Windows updates from a central management point, and can pick and choose which updates their clients ...

A Cisco-owned NAC solution that uses policy-driven decision making to authenticate and authorize devices connecting to a network.

How can devices connect to a network that has a robust access control configuration? NAC doesn't only do authentication and authorization, like previously stated. It also checks and enforces compliance with a group of security policies. It usually checks: ...

A terribly complicated four-step process that requires forethought when implementing network access control. Plan - A committee should convene and make decisions that define how NAC should work. Define - The roles, identities, and permissions (policies) mu...

Learn what to look out for when hardening a switch.  

Lock the aliens out! Physical security is the first line of defense when it comes to physical access to an organization's critical assets. It often includes things like: biometric scanners (fingerprint, face, eyeball/retina) smart cards key fobs surveil...

Spy on the infidels!  The goal of monitoring is to keep track of conditions on the network, identify situations that might signal potential problems, pinpoint the source of problems, and locate areas of your network that might need to be upgraded or modified....

Open Source Intelligence A collection of resources and tools that are separated by common categories, making it easy to gather all sorts of information based on what's already publicly available. The OSINT framework site is searchable by username, email addre...

A passive reconnaissance tool. theHarvester is used to gather information from a variety of public sources. The tool gathers emails, names, subdomains, IPs, and URLs using multiple public data sources. These sources include search engines, social media sites,...

A popular search engine for IoT devices. Users are able to search for specific types off devices and locations, used to see if a target has any online devices that aren't properly secured.  

A reconnaissance tool that performs DNS enumeration, and can find records and entries for a specific organization.

A method of port scanning that uses publicly available exploitation detection sites to preserve anonymity while scanning the target.