Build and Install Wireshark

Wireshark is a really great tool for analyzing traffic, whether it could be live traffic on interface or .cap file. The tool enables different types filtering on packets like follow stream, filer by protocol and IP, etc

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Open vSwitch installation on Redhat7 OS

Long back before I worked on Openshift which is really a great container platform tool from Redhat. But installation is not simple as Kubernetes(relatively). One of the prerequisite for the cluster deployment is Open vSwitch.

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Windows OS metrics collection with Telegraf

Ok, getting metrics(CPU, Memory & Network) from Windows OS is completely different from Linux. In Linux, people can easily develop scripts to get system metrics by simply reading /proc pesudo files. In fact there are so many open source tools to do this in Linux, like tcollector which is my favourite.

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Wifi De-authentication Attack

A Wi-Fi deauthentication attack is a type of denial-of-service attack that targets communication between a user and a Wi-Fi wireless access point.

-Wikipedia

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GNU screen commands(Cheat Sheet)

GNU Screen is a terminal multiplexer, a software application that can be used to multiplex several virtual consoles, allowing a user to access multiple separate login sessions inside a single terminal window, or detach and reattach sessions from a terminal. It is useful for dealing with multiple programs from a command line interface, and for separating programs from the session of the Unix shell that started the program, particularly so a remote process continues running even when the user is disconnected. more

-Wikipedia

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Install jekyll in Ubuntu 14.04

I was very excited to try Jekyll and Github Pages when I heard about it. When I try to install jekyll, I got below error

root@veeru:/home/veeru# gem install jekyll bundler
Fetching: public_suffix-3.0.1.gem (100%)
ERROR:  Error installing jekyll:
	public_suffix requires Ruby version >= 2.1.
Fetching: bundler-1.16.1.gem (100%)
Successfully installed bundler-1.16.1
1 gem installed
Installing ri documentation for bundler-1.16.1...
Installing RDoc documentation for bundler-1.16.1...
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MAC Address Scrambling in Linux

MAC Address Scrambling“- By name itself we can understand, instead of using burned-in address, the machines uses random MAC address. The machine/device changes MAC address regularly to improve security. MAC address is 48 bit hexadecimal digit which is burned in every electronic device has capability of “connectivity” such as mobile devices, smart TV, PC, etc. “Apple” added this feature to iPhones from iOS8 to protect user’s privacy.

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