Nmap Cheat Sheet

Nmap has a multitude of options and when you first start playing with this excellent tool it can be a bit daunting. In this cheat sheet you will find a series of practical example commands for running Nmap and getting the most of this powerful tool. Keep in mind that this cheat sheet merely touches … Continue reading Nmap Cheat Sheet

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Password Recovery Steps for Cisco Catalyst Switches

Ever turn on a switch or perform a reload just to find out that you’ve accidentally been locked out of your networking device? Here is an easy way to physically perform a password recovery on a Cisco Catalyst Switch. Step 1: Connect your PC or terminal into the switch console port with the blue console cable. … Continue reading Password Recovery Steps for Cisco Catalyst Switches

What is The Differences Between SFP, SFP+, XFP, QSFP, QSFP+, CFP and QSFP28?

SFP SFP, small form-factor pluggable for short, is a compact, hot-pluggable transceiver module used for both telecommunication and data communications applications. SFPtransceiver can be regarded as the upgrade version of GBIC module. Unlike GBIC with SC fiber optic interface, SFP is with LC interface and the main body size of SFP is only about half … Continue reading What is The Differences Between SFP, SFP+, XFP, QSFP, QSFP+, CFP and QSFP28?

Explanation of The Model of Cisco Switches

Recently, when I surf on some forums about this industry, I found some people are confused on the meaning of Cisco switches as some of the Cisco switches have a similar model. For example, the part number “Cisco 2960 WS-C2960-24PC-L” is only one letter difference from the “Cisco 2960 Switch WS-C2960-24PC-S”, but they have different functions. … Continue reading Explanation of The Model of Cisco Switches

CCNA Practice Test

Free CCNA & CCNP Practice Exams There are two types of people who will try our tests - these, who really care how well are they prepared for their exam, and those who are searching for braindumps with the exact exam questions. But what will you achieve if you are cheating from the beginning, as … Continue reading CCNA Practice Test

Cisco IOS Router: Local, TACACS+ and RADIUS authentication of the HTTP connection Configuration Example

Introduction This document shows how to configure local, TACACS+, and RADIUS authentication of the HTTP connection. Some relevant debugging commands are also provided. Before You Begin Conventions For more information on document conventions, see the Cisco Technical Tips Conventions. Prerequisites There are no specific prerequisites for this document. Components Used The information in this document is … Continue reading Cisco IOS Router: Local, TACACS+ and RADIUS authentication of the HTTP connection Configuration Example

NAT and PAT complete explanation

Network address translation (NAT) is the process of modifying IP addressinformation in IP packet headers while in transit across a traffic routing device. There are two different types of NAT: NAT Static NAT: The simplest type of NAT provides a one-to-one translation of IP addresses. It is often also referred to as one-to-one NAT. In this type of … Continue reading NAT and PAT complete explanation