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A computer network is a system where multiple different devices are connected together. These devices are interconnected and communicate with each other using some common standard called protocols. The computer network is created to share resources or information with each other. Some examples of networks are social networks, phone networks, television networks, neural networks, and … Read more
This post describes the different methods for password recovery for cisco Identity Service Engine (ISE) CLI and GUI based on the type of appliance being used. To recover admin password in Cisco ISE CLI, you need to download the latest Cisco ISE version ISO file. ISE .iso will be used during the boot sequence to reset … Read more
This post describes the method to recover expired or lost passwords for the Cisco ISE GUI. Admin passwords can be different for CLI and GUI.You can reset the admin GUI password by logging in to Cisco ISE CLI. If the CLI password is also expired or lost then you need to reset the Cisco ISE … Read more
This post shows how to compress and extract files in Linux. Most users use tar to compress files to save disk space or to save network bandwidth if they are transferring files over the network. Files are compressed before they are added to the archive. The tar command is one of the most commonly used commands in … Read more
This post describes how to install or run TCP traceroute in Centos Linux. TCP Traceroute is a tool used by end users in Linux to test TCP port connectivity. TCP Traceroute is done from Centos command line, TCP traceroute uses TCP SYN packets rather than ICMP/UDP packets that the usual implementations use, thus bypassing gateways … Read more
This document will explain how to deploy Cisco GETVPN if you are new to GETVPN then first go through Cisco GETVPN Concept Explained this covers the basic fundamentals of GETVPN to help you understand the concept easily. GETVPN Deployment Configuration COOP Server Exportable RSA Keys The preceding configuration is sufficient for a standalone KS in an enterprise … Read more
This document covers the theoretical aspects of the GETVPN. It outlines the best deployment methods and best practices recommended by Solution Architects. GETVPN (Group Encrypted Transport) What is GETVPN? Cisco GETVPN delivers a revolutionary solution for tunnel-less, any-to-any and confidential branch communication. Group Encrypted Transport VPN (GETVPN) introduces the concept of a trusted group to … Read more
TCP 3-way handshake is one of the most commonly asked question and now you are going to find the answers you have been looking for the entire time. This article goes in-depth of the TCP handshake it. TCP (Transmission Control Protocol) is a connection-oriented protocol which sends and receives data using sequence and acknowledgment numbers. … Read more
Here is the set of most commonly asked interview question for L2 level security engineer. these questions will give you insight into what is the current trend in the market and what companies are looking for. VPN ==== 1 Phase 1 & phase 2 explanation. 2 What can you conclude by this error message in … Read more
This is part two of ISE interview questions and answers. This article covers intermediate level interview questions and answers if you are new to ISE please refer Cisco ISE basic interview question and answer first. Q. What is Profiling in Cisco ISE? The Profiling service in Cisco Identity Services Engine Identifies the devices that connect … Read more