background preloader - Cisco Networking, VPN Security, Routing, Switching, Windows 2012, Virtualization, Hyper-V, Free Cisco Lab, Linux Tutorials, CallManager, CME, Protocol Analysis, CCNA, CCNP, CCIE, Free Cisco Lab - Cisco Networking, VPN Security, Routing, Switching, Windows 2012, Virtualization, Hyper-V, Free Cisco Lab, Linux Tutorials, CallManager, CME, Protocol Analysis, CCNA, CCNP, CCIE, Free Cisco Lab
Related:  Tech

Cisco administration 101: Learn 10 commands to configure on a new router When it comes to configuring a new Cisco router, much of the configuration depends on what type of router it is as well as the purpose it will serve. However, there are certain things you should configure on every new Cisco router. Hasn't there been a command that you wished Cisco would make standard on every router? Every administrator has his or her own list of commands they use to configure a router "just right." Here's my list of 10 commands that I think you should configure on every router (in no particular order). After you read through them, post your own favorites in this article's discussion. Configure a login account on the router, and use it on lines I highly recommend configuring a real username and password account on routers and switches. In addition, I recommend using a secret password for the username—not just a regular password. Here's an example: Router(config)# username root secret My$Password Set a hostname on your router Router(config)# hostname Router-Branch-23

i-Net Media | Internet Media & IT Solutions Solar panel Photovoltaic solar panels absorb sunlight as a source of energy to generate direct current electricity. A photovoltaic (PV) module is a packaged, connected assembly of photovoltaic solar cells available in different voltages and wattages. Photovoltaic modules constitute the photovoltaic array of a photovoltaic system that generates and supplies solar electricity in commercial and residential applications. The most common application of solar energy collection outside agriculture is solar water heating systems.[1] Theory and construction[edit] A PV junction box is attached to the back of the solar panel and functions as its output interface. Module electrical connections are made in series to achieve a desired output voltage or in parallel to provide a desired current capability (amperes) of the solar panel or the PV system. Solar panels also use metal frames consisting of racking components, brackets, reflector shapes, and troughs to better support the panel structure.[2] History[edit]

Subnetting - Networking Questions and Answers Why Networking Subnetting? In this section you can learn and practice Networking Questions based on "Subnetting" and improve your skills in order to face the interview, competitive examination and various entrance test (CAT, GATE, GRE, MAT, Bank Exam, Railway Exam etc.) with full confidence. Where can I get Networking Subnetting questions and answers with explanation? IndiaBIX provides you lots of fully solved Networking (Subnetting) questions and answers with Explanation. Solved examples with detailed answer description, explanation are given and it would be easy to understand. All students, freshers can download Networking Subnetting quiz questions with answers as PDF files and eBooks. Where can I get Networking Subnetting Interview Questions and Answers (objective type, multiple choice)? Here you can find objective type Networking Subnetting questions and answers for interview and entrance examination. How to solve Networking Subnetting problems? Exercise :: Subnetting - Subnetting

Configuration d'un Vlan sur switch Cisco Dans ce tutoriel nous allons voir la configuration de VLAN sur un switch Cisco. Pour cela je vais utiliser Packet Tracer qui est un logiciel qui simule le fonctionnement d’un véritable matériel Cisco. Les objectifs vont donc êtres de créer des réseaux locaux virtuel, d’affecter des ports de commutateur à un réseau local virtuel, d’ajouter, déplacer et modifier des ports, vérifier la configuration des réseaux locaux virtuel, activer l’agrégation sur des connexions entre switchs, vérifier la configuration d’agrégations et enregistrer la configuration des réseaux locaux virtuel. Pour savoir à quoi sert un VLAN Vous pouvez ou consulter la vidéo ou bien le tutoriel écrit : Pour la vidéo : Pour le tutoriel écrit : Le réseau que je vais utiliser est détaillé ci-dessous. J’utilise la commande vlan « id-vlan » en mode de configuration globale pour ajouter des réseaux locaux virtuels au commutateur Switch1. Je configure quatre réseaux locaux virtuel, 99, 10, 20 et 30. Sur le switch 2 Sur le switch 3.

How to permanently delete your YouTube account, or hide it Interview Questions for Network Engineers : Router Freak Are you thinking about getting a job as a Network Engineer? Are you considering leaving your present position and getting a new job at a new company? Has it been a while since you've interviewed? If you've answered yes to any of these questions then this is the post for you! We've compiled a list of things you need to do to be prepared for on your next interview. We've also compiled a list of some tips for making sure you ace that interview as well as a list of 20 Network Engineer Interview Questions. Can you pass the test? Tips for preparing for the Interview Study - Before you go to your interview, open the books up and give yourself a general review of networking.Update your Resume - Read your resume and update it. Preparing for Network Engineer Interview Questions IP Addressing- Make sure you know subnetting (without a subnet calculator!). Tip: never answer "I can check it on Google". Put yourself in their shoes, what will they need from you? What is the subnet mask

L'IP c'est quoi ? Qu’est-ce qu’une adresse IP ? Une série de 4 nombres, séparés par des points compris entre 0 et 255 – sous la forme IPV4 ou IPV6. C’est votre identifiant, permanent ou dynamique et toujours unique à chaque ordinateur, imprimante ou périphérique sur un réseau. Tous les ordinateurs ont au moins deux adresses IP, une interne et l’autre externe. Le premier est utilisé pour identifier votre appareil sur un réseau à la maison, même si vous n’avez qu’un seul ordinateur connecté à ce réseau. L’adresse IP externe est utilisée pour la navigation sur Internet Lorsque vous allumez votre ordinateur et le connecter à un réseau local, l’appareil reçoit une adresse IP qui est communément appelée IP interne. Deux appareils ne peuvent pas avoir la même adresse IP sauf s’ils sont connectés dans le même réseau local ou privé. Découvrir ce nombre est assez facile et peut être utile pour diverses situations, comme nous le verrons dans cet article. À quoi sert l’adresse IP ? Votre ordinateur est reconnu

Windows Registry Editor for dummies Often, our tips mention the Windows Registry and Registry Editor. What exactly is the Registry and what is RegEdit? Those are who are familiar with Windows for many years need no explanation, but those who are new to Windows will find this post useful. Today, I am going to explain the fundamentals of Registry Editor. RECOMMENDED: Click here to fix Windows errors and optimize system performance Table of contents What is Registry Editor Registry Editor was born as a tool for users who want to change Windows settings which are not exposed in the user interface. How to launch Registry Editor Regardless of the Windows version you have installed, this method will work: Press Win+R keys on your keyboard, the "Run" dialog will appear. The main executable file of Registry Editor is located in the C:\Windows directory. Registry Editor looks like this: What Registry Editor shows you Keys are a virtual view of data from several files, which form the registry database. How to create a new key 1. 2. 3. 1.

stop your cisco device intterupting you with logging synchronous One annoying “feature” of Cisco devices is that they often output info when your typing into the console making you loose your place and unable to see what you are typing in. Router(config)#host m00nies-router m00nies-router(config)#^Z m00nies-router#sho *Aug 20 09:46:38.867: %SYS-5-CONFIG_I: Configured from console by console w in This behaviour can be change however by using the “logging synchronous” command on each of the management interfaces. m00nies-router#conf t m00nies-router(config)#line vty 0 15 m00nies-router(config-line)#logging synchronous m00nies-router(config-line)#line con 0 m00nies-router(config-line)#logging synchronous m00nies-router(config-line)#^Z m00nies-router#sho *Aug 20 09:53:20.279: %SYS-5-CONFIG_I: Configured from console by console m00nies-router#show int Notice that now the console output automatically moves your input to a new line without messing up your typing! m00nie 🙂