Posted by Internet at Every Where on 11:56 AM
It's easy to do your own home networking, if you want to run your cables in your walls you're going to need the tools shown in the left picture.Of course for the cable you need to run it down first in your walls, I only use that short cable for this tutorial.Words of note, do not cut your cables too short when terminating them to the modular jacks. In case you need to change the jacks later or you terminate them wrong then you don't have to worry having too short cables.Step One:Strip your cable jacket using the cable stripper.Step Two:Prepare your modular jack, you can see the jack has printed color codes for terminating the UTP cable. It is...
Posted by Internet at Every Where on 9:38 AM
When you realized there's something wrong with your home network, you need to do first steps of troubleshooting using this tool I show on the left picture.Isn't that windows command prompt? you bet it is, you don't need some kick ass software just to find out your home network problems.I usually jump right to command prompt to find out what happen on my network.Step One:You need to type in this command at the command prompt:ping 127.0.0.1What this does is pinging your own network card, if you get reply then there's nothing wrong with it, if no reply this means there's a problem with your TCP/IP stack.There is a question related to TCP/IP stack...
Posted by Internet at Every Where on 7:46 AM
Okay, so how do Network Weavers use Twitter to enhance not just their personal networks but community or common interest networks? I started trying to figure this out by watching myself, being pretty much a compulsive Network Weaver. First, I had heard about Twitter but couldn't figure out how to use it so the last time I was in Cleveland I forced Valdis and Jack to show me how to get on and away I went. Network Weavers are ruthless in searching out and learning great Web 2.0 tools to support their networks.Last night, I ran into Michelle at the Village Bakery (one of the world's great networking hubs!). She and her partner are the leading...
Posted by Internet at Every Where on 6:32 AM
Is it really necessary to learn about the OSI layers? yes I'm afraid it is. I know it's a boring theory type, but they really useful for troubleshooting network and there can be a lot of questions in the CCNA exam related to OSI Layers.OSI layers is a conceptual thing that urge all vendors for network devices to follow their concept so all devices from different vendors can communicate. Long time ago before this concept exist, the devices from one vendor can't communicate with other vendors'.Basically they say that some functions should exist only on a certain layer and a change in one layer would not affect other layers' functions.This is how...
Posted by Internet at Every Where on 5:27 AM
Actually, you can follow all three of us -- Jack, June and Valdis -- on Twitter! Twitter is a micro-blogging platform -- one and two sentence posts -- which allows you to quickly share ideas and discoveries on the WWW. Twitter's original idea was that people post answers to "What are you doing?" I like to answer the questions "What are you interested in?" and "What are you paying attention to?" I tend to follow people that answer similar interest/attention questions in their tweets [posts to Twitter]. Here is a quick intro to Twitter and some musings about network mapping of Twitter data. The graphic below shows part of my Twitter graph...
Posted by Internet at Every Where on 5:04 AM
I'm exploring Twitteras a Network Weaver tool for building relationships. The Twitterers I most admire offer a combination of personal observations with "caught in the moment" flashes of insight and links to cool sites. If you Twitter, and want to get Twittered when I post something new on the blog, check me out at juneholl...
Posted by Internet at Every Where on 2:00 PM
The Plexus Institute has a self-organized group that is reading the book Panarchy edited by Lance Gunderson and C.S.Holling. You can dowload a chapter of their book at the Resilience Alliance web site or purchase the book and join us at our next call on September 10th at 11 AM Eastern. Check the Plexus website for call-in number.The book is about ecosystems and humans, but I found it incredibly provocative about transformation in any sphere. One of the most interesting new ideas I gained was the concept of nested cycles--that some aspects of social systems work on very short timeframes--say a microprocess in a meeting--and some things work...
Posted by Internet at Every Where on 1:44 PM
Nice new site for networking efforts in Maine. Includes case studies of several networks--what I call big "N" networks to emphasize that they are intentional and at least somewhat formally organized and to differentiate them from small "n" networks which is the lens that looks at all relationships among people, not just those in the formal network.Of course, we need to be very aware of both lens when we are interested in transformation. And Network Weavers are important in any case. I'd love to see a Community of Practice around network enhancement. Anyone have any ideas about how we could get this goi...
Posted by Internet at Every Where on 5:08 AM
It is amazing how many of our current problems come down to the realization that it's the network, the connectivity, that matters. In most situations we know how to fix and enhance the nodes in the network. The links, and their patterns and structure, are the hard problem. How do you weave a better network, regardless of what is being distributed -- knowledge or electricity?We are making progress in alternative energy production, but we still fail at energy distribution. Windmills and solar energy collectors have made great progress -- we just can't get the energy from where the wind blows and the sun shines to where the great population...
Posted by Internet at Every Where on 2:23 AM
Tenable Nessus from http://www.nessus.org is the tool of my choice if I want to scan my network for vulnerabilities.Say like this, I want to know if my network is safe from dangerous people that want to mess up my network, I need to know are there any "holes" that can be an advantage to those people. So I run my tenable nessus from my PC, scan all computers in my network, and the nessus will provide me details of all vulnerabilities.They'll also give you the details of each vulnerabilities, which ports are currently open, what's the meaning of it, is it dangerous, the links to the description, etc.To start trying nessus is very easy, first you...
Posted by Internet at Every Where on 10:03 AM
The New York Times publishes an interesting story about "investigative journalists for hire". Via the concept of crowdfunding, a community that wants something investigated, will raise money from many local citizens, each contributing a small amount. This will allow journalists to self-organize around stories that are both interesting and have local grass-roots support.Cleveland and NE Ohio have a big corruption story brewing, but the local paper -- The Plain Dealer -- is in the middle of offering hundreds of buyouts to reporters and staff. The PD has done a good job of reporting the beginning of the investigation -- rumor had it that 22 reporters...
Posted by Internet at Every Where on 2:06 AM
Without any doubt, the first thing you do after you finish crimping your cables is to test them.You can test them by plugging them to your NIC and see if they work, or you can use one of these LAN tester like the one I show you on the left picture.They are easy to use, and a must have for network installers. But the one I show you is just for home usage or not intended for heavy usage.What I mean is these LAN tester are used only to test whether you use the right color codes, to find out if there any cable cut in the middle, and some other basic things. There are other tester type, the Tone Generator. These devices are useful if you have so many...
Posted by Internet at Every Where on 8:43 AM
I posted about the tools and the color codes for crimping UTP cable to RJ45 before, now I'd like to share step by step of how to crimp the cable to the connector.You can see on the left picture how the end result will look like.I want to review again on the tools that I usually use to crimp my cables. Here are the tools:They are the same from my previous post about the tools, I use additional tools such as the cable stripper for stripping the cable jacket, and boots just to cover the RJ45 connector making the crimped cables look more attractive and more professional.Here are the steps to start crimping the cables:STEP 1Slide in the boots to your...
Posted by Internet at Every Where on 6:40 AM
I know, before you say anything, my home network has very "common" network devices and they're all messed up.I'm all talking about this and that about networking and this is what I have in my home? yes, I don't have a lot to spend on my network, time and money, but I'm telling you it's a great pleasure to connect all these things together and see them working.The device that I'm most proud of is that Cisco Access Point 1242AG. This baby rocks, if only I have more than one of this thing, I can have a roaming connection all over my house. And not like any average AP, I can adjust the strength of the signal and many other parameters.This is...
Posted by Internet at Every Where on 6:55 PM
Stay tuned for our 9 months of workshops on network weaving, sponsored by E...
Posted by Internet at Every Where on 3:57 AM
This is the image I got from http://www.cisco.com, it basically shows how the certifications levels in Cisco. Starting with the entry levels which are the ICND1 and ICND2.But if you got both ICND1 and 2 exams, you also get the CCNA certification which belongs to the associate level.Next one is the professional level, and the last one is expert level.As the pyramid shows, the higher the level, the fewer they are, and the best ones in salary.Cisco likes to give numbers as their exam code, for example for the CCNA they give #640-802 exam number. This numbers are changed if they have new standards or exam subjects are modified.I took the course with...
Posted by Internet at Every Where on 3:29 AM
Talking about networking I think is not far from talking about Cisco, even for newbies. The reason is Cisco since a long long time ago has been a leader in the industry, the people in Cisco created standards for networking which are widely accepted by the networking world.They even take some major network vendors under their wing, some vendors like linksys and others. I like how the Cisco guys print their labels in linksys devices - Linksys, a division of Cisco.The networking devices they offer are man, I get excited talking about this. I mean they have expensive devices, but they have things from home networking to enterprise networking. From...
Posted by Internet at Every Where on 11:55 PM
You typically find bulks of cables like the left picture shows in a project. It's not strange to have a project with 2000 clients to be connected in a network.To arrange cables like these is a nightmare for network installers if you don't provide yourselves with cable managers.Usually the cable managers also provided by the racks vendors. You can ask them if they have it, or use cable managers from other vendors if you don't like the way it looks.Different cable managers have different ways to manage cables, so it's better to consult the vendors on how to install the cables according their products.I need to remind you that some cable managers...
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