Boot Sequence of Cisco Router & Switch

Cisco perform some specific steps while booting or turning on device. It is necessary to understand boot sequence of router / switch because this helps you for troubleshooting purpose. When a Cisco device boots up, it performs a series of steps, called the boot sequence, to test the hardware and load the necessary software.

Important Hardware Component Of Router And Switch

As you know every computing device has some hardware perform well, enterprise level networking device has some better hardware component for best performance. Today we will typically look into Cisco’s devices and their major hardware components also we will look at how these component works with each other.

TShark Powerful Command Line Network Analyzer

TShark is a network protocol analyzer. It lets you capture packet data from a live network, or read packets from a previously saved capture file, either printing a decoded form of those packets to the standard output or writing the packets to a file. TShark's native capture file format is pcapng format, which is also the format used by Wireshark and various other tools.

Malicious RDP Server Able To Reverse Hack Popular RDP Clients

If you are System Administrator or if you have taken remote connection of other systems then you might know Remote Desktop Protocol (RDP). RDP is considered as a safe connection to take remote access of another system.

Critical Vulnerability Fixed By Microsoft , Update Your Windows System To Prevent Being Hacked

On this 8 January 2019, Microsoft may be wishing Happy New Year to their customer by releasing many security updates. In this new update Microsoft has fixed many critical bugs like Remote Code Execution as well as important bugs which is vulnerable to various type of Information Disclosure. 

Source - Microsoft


The January security release consists of security updates for...

Wireshark Filters - Important To Know For Network Security Professional

Wireshark is a most popular software, which widely used for network traffic analysing. This software is developed in C & C++ programming language by Gerald Combs in 1998. It lets you see what’s happening on your network at a microscopic level.  Wireshark development thrives thanks to the volunteer contributions of networking experts around the globe.

You can download latest version of Wireshark from their....

Popular Open Source Firewall / Router OS Netgate pfSense Can Be Hacked Remotely

Source:- Cisco Talos Intelligence

pfSense is an open source firewall/router computer software distribution based on FreeBSD developed by Netgate. A researcher named Brandon Stultz member of Cisco’s Talos Intelligence group discovered remote command injection vulnerability in pfSense software.

pfSense is popular because it can be installed on a physical computer or a virtual machine ( VM Ware, etc., ) or it can be also deployed on cloud such as AWS or Azure to make a dedicated firewall/router for a network. It can be configured and upgraded through a web-based interface, and requires no knowledge of the underlying FreeBSD system to manage.

Because of