Monday, 24 September 2012

Commtest | Test Network Speed


CommTest is a very simple program but is nevertheless quite useful if you want to test the network speed between two computers. All you have to do is start the tool on both machines and then establish a connection from one of the computers to the other by entering the IP address or the domain name. Make sure that no firewall is in the way or that port 65000 is open.



CommTest will then immediately start uploading and downloading data and test the network speed in KB/s. You can also see the bytes and packets that have been sent and received. The tool is supposed to be able to measure the latency, but that didn’t work when I tried it. This was probably due to the fact that I tested it in a virtual environment and so the latency might have been just too small to be measurable.
I tried CommTest 1.2 on Windows 7 and Windows Server 2008 R2.
If you just want to test the network speed to the Internet, then the online tool speedtest.net is the thing for you.

How to Detect IP Address Conflict on Network


Each device connected to a network is assigned a unique IP address to identify it to the network. When one IP address is accidentally assigned to more than one device, an IP address conflict occurs. If your computer is using an IP address that is conflicting with another device, you will get a pop-up error telling you that the system has detected a conflict. To find out where the conflicting device is, check the system log for your computer and look up the conflicting device's MAC address by using the IPconfig command.


Find Which Device or User trying to Conflict your Network IP Address

The way to understand, the IP Conflicts.
  • Access the Control Panel through the Start Button or you can reach with command prompt (Go to the "Run" and type "control" and press enter)
  • Select the "Administrative Tools" on List
  • Again select the "Event Viewer" 
  • Select the "System" Option in Event Viewer (Local)
  • You find the "Red" Error in Source "Tcpcip" double click that one. 
  • Now read the description you will find the IP address which is conflict and the Source Mac Address also you will find, Which Hardware try to conflict you IP Address. 
  • After get the Mac address download the IPScanner and search the Mac address.
  • If you find the Mac address then this user or device try to conflict you IP Address. 

Tuesday, 11 September 2012

Network Diagram | 6 Free Diagram Application for Network


At some point, every administrator will need to diagram a network. For some, it's their primary duty, and they tend to rely on powerful, But for those who need to use a diagramming tool only occasionally, a cheaper solution is best. Luckily, there are several free apps that handle the task well.
Here are five tools that can help you diagram your network without breaking your budget. Some are Windows-only, while others are cross platform.

CADE was developed primarily as a CAD tool, but it also serves as a handy network diagramming tool. It's a 2D vector editor for Windows. Although it doesn't have all the bells and whistles of some costlier tools, it can handle the task of diagramming your network with ease.



Dia (Figure B) is an open source, GTK+ diagramming tool that has a shallow learning curve and can help you create basic network diagrams. Like CADE, Dia was inspired by Visio — but with a much more casual approach and feel. Dia loads and saves XML formatted documents that are gziped by default to save space. Dia is also available for Linux, Mac, and Windows.



Diagram Designer (Figure C) is another freeware tool that suffers (like Dia) from looking a bit on the outdated side. But Diagram Designer’s ease of use should certainly make up for the old-school feel of the application. DD features include customizable template objects, a spell checker, import/export (WMF, EMF, BMP, JPEG, PNG, MNG, ICO, GIF, and PCX), a slide show viewer, a graph plotter, a calculator, MeeSoft Image Analyzer integration, and compressed file format.


Gliffy (Figure D) is the only Web-based tool on this list. It’s easy to use and it works on any platform. With the ability to drag and drop shapes from numerous object libraries, you can have your network diagram ready in no time. You can use Gliffy for free, but if you really want to get into creating some diagrams, you may want to pony up the $4.95/month fee for 200 diagrams, 200 MB of storage, public and private diagrams, and unlimited collaborators.


yEd (Figure E) is a Java-based tool that’s available for Windows and Linux. It has a great user interface and features diagram creation, auto-layout, data import (GraphML, Excel XLS, GEDCOM, GML, XML), and data export (PDF, SWF, JPG, GIF, BMP, and HTML image maps). The auto-layout feature is particularly cool. It uses a wide range of sophisticated layout algorithms to automatically arrange your diagrams, saving you time and effort.



Office Visio 2007 Office Visio Professional 2007 is helping IT and business professionals worldwide visualize, analyze, and communicate complex information, systems, and processes. Extend Office Visio 2007 programmatically or integrate it with other applications to fit your industry-specific scenarios. Develop your own custom solutions and shapes, or use those from Visio Solution Providers. Embed and program the Visio drawing environment to include the power of Visio in any smart client application.


The all above tools are free for use, Use these tools and describe you network diagram and each network point, full feature and support on Windows and Mac OS.