Tag: mac

How to Lookup OUI (Organizationally Unique Identifier) In Linux

Network switches or Layer 2 technology Ethernet protocol uses MAC addresses in order to transfer frames between systems. MAC addresses are 48 bit value. This 48 bit value contains the device manufacturer ID as the first 24 bit. In this tutorial we will learn how to look, search and find the Organizationally Unique Identifier in Linux distributions like Ubuntu, Debian, Mint,

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HMAC (Hach-based Message Authentication Code) Tutorial

Hash-based Authentication Message Code or HMAC is used to authenticate message with hash functions. Message authentication is important mechanism in cyber security and used to check message authenticity. There are different ways and mechanisms for Message Authentication. Message Message is the data, text, image or whatever else we want to authenticate. Message is checked against it authenticity with given key

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Python Script Change Mac Address Periodically

In this tutorial we will look a simple but useful code that changes windows operating system Mac address. Mac address is the unique address that specifies the network interface. A general thought that mac addresses can be changed. But is it not true. Mac addressee is provided by the network card to the operations system network stack. But can be

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How To Disable SELinux Temporarily or Permanently in CentOS, RHEL, Fedora

SELinux is very powerful security mechanism for Linux distributions. Distributions like CentOS, RHEL or Fedora comes SELinux enabled by default. In some situations we do not need SELinux protection especially in end user systems. In this tutorial we will look how to disable SELinux temporarily or Permanently. List SELinux Status First step is getting information about SELinux status. We can

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Windows Netstat Command Tutorial with Examples To List Network Ports and Connections

Netstat is used to display active TCP connections and related listening ports in the computer or system. Actually there are more features provided by netstat like display statistics about network stack protocols, IPv4, IPv6, TCP, UDP etc. Syntax

Display All TCP and UDP Connections with Listening Ports TCP is most used protocol for transmission of packets between different hosts. In

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Arp-Scan Command Tutorial With Examples

Network scanning is one of the steps of penetration testing. There are different and popular tools to scan network line masscan, nmap etc. Arp-scan is a tool specifically designed to scan network with layer 2 or mac or Ethernet arp packets. Install We can install arp-scan tool with the following command.

Help We can print help information with the

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Arping Command Tutorial With Examples For Linux

There are a lot of tools for network trouble shooting and debugging. Arping is one of them which only pings same network hosts. So what makes arping special is it uses network layer arp packets. This works on mac protocol. It is useful especially to find hosts those do not responds layer 3 and layer 4 ping requests. Install

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How To Get Mac Address In Windows?

Mac Address is a network address used to layer 2 network traffic. The communication is done between network nodes with mac address. It is important part of the computer networking. In this tutorial we will look different ways to get mac address practically. Getmac Command Getmac command is simple command used to get mac related information. We will use this

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