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Graphical Network Simulator - GNS3

https://www.gns3.com/

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7) Setting Up Idle-PC by Stamati Panagiotaras (Panos) CCIE 17823 I’ve been using dynamips for Linux for the past 7 years now and i thought i would share with you my installation to help you set this up yourself. The advantages of this installation is cost. AAA and VTYs in IOS-XR : Bingo Continuing on the IOS-XR saga, this is the newest bunch of things that don't "work as expected" (© Cisco). Well, as expected by me, not by Cisco. Everything started while trying to configure a primary and backup aaa login method on an ASR9k, when i realized that... 1) having a backup aaa login method with the same tacacs servers as the ones in the primary aaa login method (which is using the management vrf) doesn't work 100+ Alternative Search Engines You Should Know If someone asks you, off the top of your head, what search engines you use or know off, chances are you’ll be naming the regulars: Google, Bing, Yahoo. The Internet however is a really big place and there are plenty more search engines out there that can cater to very specific requirements. General Search Engines We’re skipping the search engines that everyone know about so you won’t be seeing Google, Yahoo or Bing in this list.

Configuring a GNS3 Ethernet NIO Cloud Learn how to configure a GNS3 Ethernet NIO (Network Input/Output) Cloud used in labs found in the Free CCNA Workbook. Real World Application In this lab you will learn how to configure a GNS3 Ethernet NIO (Network Input/Output) Cloud used in labs found in the Free CCNA Workbook. If you are using GNS3 then throughout the Free CCNA Workbook you will be required to connect to the router using your host machine. The workbook was created so GNS3 can be used while running on a Windows XP Professional PC. ASR9000/XR: The concept of a SMU and managing them Introduction A SMU is a software maintenance update, or simply put a patch, that can be loaded on the XR device you are running. The concept of a SMU applies to all XR devices, although this article focuses on the ASR9000 primarily. When the system is running into a SW deficiency (a.k.a. a bug) Cisco can provide a patch for that particular problem in order for you to keep running your base release, but get free of the problem at hand.

70 Free Useful Portable Applications You Should Know Editor’s note: This post has been updated with more apps and fixed links. Portable apps are the software requiring no installation unlike usual executable apps yet recall your history and configuration options unlike zipped apps. In this post, we’re showcasing the top 100 useful portable apps that you can carry in a pen drive or your phone’s storage or SD card. 30 Must-Have Free Windows Tools Hackers plan space satellites to combat censorship 4 January 2012Last updated at 06:52 ET By David Meyer Technology reporter 50 years after Russia's first piloted mission, hackers plan to send their own people beyond orbit Computer hackers plan to take the internet beyond the reach of censors by putting their own communication satellites into orbit. The scheme was outlined at the Chaos Communication Congress in Berlin.

New Ultimate CCNA Challenge for Packet Tracer In this CCNA challenge you will be configuring a small company with two sites Seattle and Tacoma, these sites are connected to the internet and their local intranet domain via a frame relay WAN. There is also a remote home office that connects to the internet and the company intranet via a DSL connection to their local ISP. Configure two VTP domains.Configure multiple VLANs in each VTP domain.Configure VoIP in one of the VTP domains.Configure STP for Seattle VTP domainConfigure NTP.Assign all IP addresses using DHCP.Configure frame relay to connect all the sites.Configure NAT to connect the company to the internet.Configure wireless access to each site.Configure a wireless DMZ zone to allow internet access.Configure ACLs to control access to resources.Configure DSL remote access for the home office.Configure Port Channel.Configure Port Security.Configure TACAS.

Understanding ELAM With the increasing complexity of networking devices and protocols, it can be extremely difficult to pinpoint the source of a networking problem. Often we need to determine if a frame was received and forwarded correctly on a particular device. There are several capturing tools, debugs, and tricks available to help answer this question. However, not all are feasible or available to run on a production network. ELAM (Embedded Logic Analyzer Module) is an engineering tool that gives us the ability to look inside Cisco ASICs and understand how a packet is being forwarded. ELAM is “embedded” within the forwarding pipeline and can capture a packet in real time without affecting performance or control plane resources.

50 Best Portable Apps (Windows/Mac/Linux) Do you travel very often to client place and use different computers? If yes, then make sure your USB drive is loaded with some common tools that can make your life much easier. I have compiled a list of 50 portable tools that you can carry on your USB or flash drive. 1. Foxit PDF Reader – What if Acrobat Viewer is not installed on customer’s PC. Always carry Foxit reader to read PDF files.

Hackerspace Global Grid [shackspace wiki] This work by hackerspace global grid is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License . As proposed on CCCamp11 we need our own infrastructure and space program. HGG's aim is to develop a modular antenna grid for satellite communication.

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