What Makes Networking Difficult?

Networking is ever present. Every business needs it from day one. Mobile devices and cloud services depend on it, and IoT devices are mission critical. Nearly every house or apartment has a router and devices communicating with the outside world. Given the proliferation of networked devices, people assume that networking is already a solved problem. But when your network starts behaving erratically, you realize networking is still difficult. Why?

The flawed promise of public protocols
A network with all its component parts purchased from the same company is extraordinarily uncommon. Modern networking enables hardware from different vendors to interoperate — in theory.

There are several flaws in that vision.

Public protocols are so flexible that people make hardware do things the writers never anticipated.
The protocol definitions can have design flaws or errors in protocols and specifications. For instance, vendors implementing DNS make slightly different choices and those devices may not interoperate.
Some protocol specifications are too expensive or not available due to proprietary elements. As a consequence, they are not reviewed as thoroughly as they should be.

With protocols running over the same media, details can interact unexpectedly, causing network issues.

Technology is changing… rapidly
Advances in technology that make networking powerful also add layers of complexity and volatility. There is a broad marketplace of vendors hoping to benefit from changes in technology. But the fast release cycle means updated networking products might not be tested properly.

Organizations who don’t leverage the new technologies risk losing a competitive edge. Their network architectures are morphing as they adapt to mobility, BYOD, the cloud, and IoT. Concern about bandwidth is now coupled with worries about availability and security for mission-critical systems.

More information : network security level

Comments

Post a Comment

Popular posts from this blog

Enabling the Computer Browser service for Windows Server

  You can configure a computer so that it does not send announcements to browsers on the domain. If you do so, you hide the computer from the Browser list, which can help reduce network traffic. Editing the Registry 1. Open the registry editor and go to Microsoft Registry 1 HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters 2.From the Edit menu, choose Add Value and type: Hidden Note: This value is case sensitive and must begin with a capital H. 3.In the Data Type field, choose REG_DWORD and choose OK. 4.In the Data field, type 1 to enable hiding and choose OK. 5.Restart your computer. Using the NET CONFIG SRV command This setting can also be changed using the following command: net config server /hidden:yes|no To hide the computer from the Browser List, type net config server /hidden:yes at the command prompt, and then press ENTER. To unhide the computer from the Browser list, type net config server /hidden:no at the command Find more :  lanmanserver windows
Read more

The Advantages of Authentication

There are numerous advantages of authentication systems which are used to identify the user of a home, ATM or a security clearance computer system. The main purpose of these systems is to validate the user's right to access the system and information, and protect against identity theft and fraud. While there are still drawbacks with some systems, as the business world and the electronic marketplace become more complex, the advantages of authentication are ever more obvious. Password Based Authentication The use of a password and username is the most common form of authentication used and is generally considered the cheapest and most convenient method. This requires the user to provide and remember a key containing a specified amount of alpha and numeric characters in relation to a username or e-mail address which must be correct at each login. Passwords saved on a network can be encrypted to prevent theft by employee or programs designed by hackers. Device Based Authenticatio
Read more

Server Work Queues of networking

  This is something you should only measure on your Terminal Server(s). You should monitor the "current commands" in the Redirector object. If the value is higher than 20 during sustained periods of time then you could have a bottleneck. Server Work Queues The Server Work Queues object should be monitored on the File server. You should monitor the "Available WorkItems" counter. Sustained values smaller than ten mean that the File server is running out of work items. When it does, performance really starts to plummet. Make sure this doesn't happen by upping the MinFreeworkItems value. Server In this object there's a counter called "Work Item Shortages". This value represents the number of times no work items were available or couldn't be allocated to service a file request. Obviously if you see any other value than zero, you need to start worrying. Upping the InitWorkItems or MaxWorkItems could help out here. Again, there's so much more you
Read more