Obasang’s Blog

Upgrading your computer’s RAM (Random Access Memory) can make your computer faster. And with a faster computer you can do more jobs in less time. Today, a lot of newly developed computer applications and programs are introduced everyday but they require more computer capacity and particularly the computer memory. If you are doing business with computers you must upgrade it for more quality performance and speed to make more money in less time and less error. There’s an online store that deals with computer upgrades and sells the latest selection of computer memory or more particularly the RAM. The online store that I’m talking about is Memorydeal.net.

Memorydeal.net is an expert at all computer upgrades and they are selling the best quality of computer memory and providing guaranteed computer upgrades. In this site you can get the same exact quality server memory modules or options that companies like IBM, HP and SUN install at the factory. They do that by offering their genuine factory original memory modules and they do it with great values.

Buy memory upgrade and boost your computers speed. You might want to try out the best possible memory for your computer and work faster than before. Visit them at www.memorydeal.net and do more jobs in less time.

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Buy memory upgrade and boost your computers speed. This is one of the most recommended suggestions to have a better performing personal computer. You do not have to buy another computer for it to perform better. Doing it does not mean you have more memory. You can save more when you just upgrade its memory or RAM.

We can do a lot from our desktop nowadays. We could play online games, listen to our favorite music, download softwares and other stuff, and of course do our work. Without it, I could not imagine life to be more easy and fun. It is then best to give it the best memory so that it could give you its maximum performance.

You may not want to get rid of that old desktop because getting a new one is costly. The most preferred alternative is buying a memory upgrade. It is one of the quickest and less expensive ways of giving your computer speedy performance. For you to get a memory upgrade, all you have to know is what your computer requires. After that you are ready to experience better and faster computer undertakings.

If you are in need of a memory upgrade today, you can visit www.memorydeal.net for more details.

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I always wanted to have a place in the cyberspace. When I started out to find a website, I never actually knew what was out there waiting for me. I was surprised about a lot of things I had to be knowledgeable about but eventually got past it after a few weeks.

Having a website is a great way to communicate to the world. Maintaining it is a learning process and for you to survive, you need to get a good website hosting company.

Wherever we may go, we always need support in some ways. If you are planning to grow your small business, you should avail of a small business web hosting service. This will be your constant partner to sell your products and services to your prospective clients.

At first I was hesitant about getting a web hosting provider because I did not really understand how it works. I thought this would just be another payment for my interest in the internet thing. After reading a few informative articles, I found out that I really need one.

Right now, I am quite happy and satisfied with the web hosting service I got. If you are interested in setting up your own website, you can check www.onewebhosting.com for your support.

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To boost your computer’s performance, you can have the quickest and least expensive way by upgrading its Random Access Memory or RAM. You can add more zip to your applications and gaming experience easily. You can avail of different upgrade services online. If you are using Macintosh, you can upgrade your Apple Memory & MAC RAM by choosing the best provider of original memory.

Even if you have the latest personal computer, it does not ensure that it is the greatest in terms of performance. However, you could still maximize its performance by having a 2gb Memory Upgrade, which is less expensive and very easy to install.

More is definitely better in terms of RAM in your computer. You can have a smooth multitasking experience. You can open more applications at the same time and switch to each one faster. You can surf the internet faster and easier with higher memory. Your browser can display images quicker and so you can do more in just a span of time.

If you are ready to get your memory upgrade, then you better search for the right memory upgrade provider. Be sure that the company has a reputable experience and give only original products. Get a PC3200 DDR400 SDRAM Upgrade now!

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When designing a website, it is important that the webmaster some questions of a general nature, before the process of planning …

What is the purpose of your site?

Many companies use Web sites to their image. Others use the site as a tool of communication. Some companies, the sites for the sale of vehicles and “bars”. Still others use their site as an educational tool. And every May, some combination of the above. The site must be an end in sight, to be effective.

What is it that you are trying, with the site?

A good understanding of the site is a webmaster, to focus on the action want the visitors to the website to take on the website. In determining the understanding and the purpose of this site, webmaster and publishers can better structure, information on the website. The information can be used with the accent and shipping. An ideal location, the Web visitors, the measures taken by the webmaster.

Who is your target audience?

They must recognize and understand your target audience. Understand your population is to answer specific content of this group.

What are the objectives of the site?

They must also determine what the purpose of your site. What can you try to complete? Try something to sell? You are on the lookout for downloads, or marketing is your real goal? If your site is trying a product or service? Is what you want your visitors a particular action? Is this the intention to benefit from the advertising time in general or a visitor to the website click on the ads? Are you trying to brand? Do you want the visitors to buy a product, or e-mail address?

In an attempt to create a specific action, there are general guidelines that you should follow. Their website is designed to ensure the action you want the intuitive navigation guide the visitors to take the required action. If you click on a link, is the goal, with a link must be clearly stated and visible. This will not only ensure that the maximum number of visitors are able to easily visible and your content, but will also help the visitors take measures to let you.

For example, many software companies fighting action with the wish that on the website visitors. Software companies and publishers of electronic books are often cause users to download at the expense of the actual sale. Some companies prefer that users downloaded, before taking a decision to buy, while others lose, that the impulse to press, rather than the download from the sale.

To optimize the marketing Web site purpose and objectives, follow these simple steps …

Address problems with the compatibility

When a visitor not be able to view the contents of the website, they are obviously not in a position to be in order for the desired action. The problems of compatibility could with the technology or the user-friendliness. Avoid the use of technology, visitors to the site to download a plug-in, before the contents of the website. If the provision of content with a flash is important for you, you must also have a version without flash. Also not to alienate the visitors to the site that have a disability - correct use of web-build, deliver, alt tags for images, and avoid the use of a system of colors, the confusion.

Clear Path

A site navigation will be the visitor a free way. The architecture of the information is the organization and categorization of online content - the process of creating clarity and organization of the on-line information, in a constructive spirit, and so logical. Setting priorities and focus on the most important items on the site. Does the visitors a clear direction of what they are looking for. Each side must intuitively links to additional information and options on the purchase.

Reduce distractions

Turning election and other distractions. Site visitors should be a clear klageweise. Not that the website visitors a wealth of tips - Studies show that many consumers the choice often turns. It is generally recommended that you provide no more than 3 election. Keep your message and briefly on the subject. Site visitors often a Web page and not the play, as well as lists with bullets and the title can be used to emphasize your e-mail.

It May seem a cliché, but it’s the little things that can make the difference, the most important. Make sure all aspects of your site. Define the specific objectives and the website to help the desired action or the behaviour of visitors to your site.Read more information by clicking the links below:

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When you are in search of affordable and low-cost 3g router, you have to contact Infoferenda. It has launched its latest 3g USB router, the UMR. It supports a huge variety of modems used today. It is the Dovado USB mobile broadband router that enables its users to maximize the potential of their existing 3G USB modem. Infoferenda is a leader in providing 3G and HSDPA router to customers. This company is also located in Goteborg and Helsingborg at Sweden aside from being on the web. Their basic product line consists of software solutions in telecommunication, web production including shops, profiling and market optimizing and webshop. They are guaranteed safe from hackers everyday. You can pay them through paypal or any major credit cards like visa, American express, mastercard and discover. They have been in the business since 2001 in Scandinavia and on the net since 2004. Their website is at www.infoferenda.eu.

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This article is also covered in a “The Sniffer Guy” podcast–available at http://www.interpathtech.com –and–through iTunes.

1) Believing the “Intelligence” of the Software without understanding how it makes determinations.

Software default settings are very seldom correct for YOU. For example, a device may say that a SQL server should respond in 50ms. But, if that device is across a WAN with a 200ms ping time–that is highly unlikely. This causes false SLOW SQL messages. This is only an example, but there are many such alerts and messages based on default “thresholds” within this type of software tool’s configuration.

Particulars of your environment may create false alerts or other messages. The definitions of what is an “excessive” delay–latency–broadcasts, etc, are up to you–not the tool.

It’s important for you to know the default settings driving alerts and messages. Then, ignore or alter those alerts that are not set best–for your enterprise. Altering them to make the appropriate settings for your enterprise is the best strategy. Too many false flags or alerts numb you into ignoring important ones or–cause you to make serious errors and incorrect decisions that can be Very Very expensive.

Properly used, those features can save enormous amounts of time and show things your own eye would likely miss.

2) Not understanding the Protocols used, such as TCP, HTTP, etc.

What good is a tool that tells you information about how a protocol is behaving if you do not understand the underlying technology? By this I mean the RFC’s for the protocols that are relevent to your concerns.

—What is the impact of various protocols working differently for the same application doing the same transaction–in different locations?

—What is expected according to specs–and how is your trace file showing different–or less optimal behavior?

—Why would there be 2 TCP connections from one location and 10 from another–for the same application doing the same transaction?

This short article cannot answer all these questions–but it can show you the types of information that you will need to understand in order to make sense out of the data a trace file will show you. Know the protocols well. Deep understanding of TCP is the basic price of admission. While you may consider this a matter of skill sets, my point is that attempting to troubleshooting a problem with a packet-sniffer while not understanding the protocols is a mistake–and a common one. If you add this point to the first one listed–about not believing all the standard settings on tools–you find that the tool cannot answer anything for you by itself. You need to know what you are looking at. You are the analyst–the tool is just an aid.

3) Not understanding the layer 1 and layer 2 aspects of the topology you are sniffing.

Ethernet and all other topologies have many different specifications, which are altered or outright ignored by many switch or other network device manufactures. You must know the specs and how the hardware you are working with applies those specs–or doesn’t apply them. A classic example is Spanning Tree. There are IEEE specifications for Spanning-Tree but those specifications are just a model…not a law. Each manufacturer has tweaked it in order to create some proprietary advancement to give them a competitive advantage. Sometimes, those advances become the new spec. However, you need to know what is standard and how your equipment varies on that theme. What good is seeing the BPDU’s in a trace file if you don’t understand what they contain or how it relates to the problem at hand? Again, this may be looked at as a skill set issue but–expecting to solve critical problems with a packet-sniffer while not knowing this about your network is a mistake.

4) Uni-directional SPANs or Port Mirroring & Single-sided trace files.

Often the switch port used by a server you need to monitor is incapable of providing a bi-directional SPAN (Port Mirror). If so, you cannot get answers from such a trace as it will miss critical information. It can be an oversight by the Engineer doing the trace but sometimes it is simply not understood to be such a critical concern–and ignored. Either way, when you have a situation like this you need to bite the bullet and put in a Change Order to get it moved to a fully bi-directionally mirror-able port before any serious analysis can be done.

Here is a good example of why this is so. Picture a Client and a Server. The Server wants to end a specific TCP connection and keeps sending FIN’s. Yet, we never see the Client send back a FIN ACK. We do see other traffic between them and know that there is connectivity. So, here are the questions:

–Are the FINs not arriving at the Client–or–is the Client receiving them and appropriately sending back the FIN ACK–which are not getting back successfully?

—-If so, then it is most likely a network issue.

–Are the FINs arriving successfully–but being ignored by the Client?

—If so, then it is mostly likely a Server or OS or Data Center issue.

These questions can not be answered with a trace file that only sees one side of the conversation. Two traces, sychronized, are needed to determine the answer to these questions.

5) Incorrect filters–either Capture or Display

An important concept here is that filters add nothing–they only remove–they only filter out. When you say that you are “filtering for” what you mean is that you are “filtering out” everything else. This isn’t just semantics as understanding this perspective is critical to success.

Capture Filters:

Capture Filters are irreversible. If you filtered out something that you need to see–you just aren’t going to see it. There is no second chance without running the test again.

Capture Filters determine what is allowed in the Capture Buffer. If the data is there to see–great. If you filtered what you need out–you can’t change the filter after the fact. A very experienced Protocol Analyst may notice the problem by seeing anomalies that amount to the shadow of the missing data–but most will not be able to tell. And, of course, even if you can tell–you still have to re-test.

This might lead you to think that you should not use Capture Filters–and that is half true. If you don’t really need them–don’t use them. However, if you are drinking your packets out of the Fire Hydrant–you have no choice. Under those conditions the data will fill up your Capture Buffer is less than a single second.

Another point is that they should be consistent within a Test Design. If they vary too much, they will create false differences that can easily lead the Network and Application Performance Analyst or Protocol Analyst astray.

Monitor Filters:

Monitor Filters are forgiving. They work the same way–in that they filter out, not in. However, you can change your mind. The data is in the can (trace file) and it is only a matter of changing the filter to see what was filtered out the last time. Many times I am stumped and then have an idea–go back and change my Capture Filters–and bam! There is the answer. The point is–incorrect Monitor Filters will just as easily lead you astray–but you still have the opportunity to find your way back since the data is still there.

Again, this might leave you thinking to avoid Monitor Filters. Don’t even consider it. Removing irrelevant packets is required to properly measure distinct conversations and search for anomalies. In fact, understanding proper filtering is what using the packet-sniffer software is all about.

6) Lack of understanding the Packet-Sniffer’s CURRENT settings

Monday, you created a Capture Filter and left it as the default. Friday you need to capture a trace file and click on Capture. Various people perform their roles in the test and you save the trace file. Everyone goes home, back to their main job function or to bed. Then you look at it and discover that you didn’t realize that the old Capture Filter was still in effect! Why? You altered the Default Capture File instead of creating a new one. Your Trace File is useless.

Always remember to review ALL settings before beginning a test. Additionally, run a practice test to make sure all filters and setting are as they should be.

Sometimes the error you discover is that you were given an incorrect IP address and that you never would find what you are looking for from the IP address from which you are capturing packets. That is a GOOD finding. It means someone’s diagram is incorrect. It also means you prevented a useless round of testing.

7) Lack of test controls.

Like any proper experiment, a performance or application test requires a control group and controlled data for all groups. If it was a pharmaceutical test you might have a group with a placebo. In our field we need to create a “BESTline” first. A “Bestline” is not a baseline.

Here is an example.

You have a Client in Singapore and a Server in New York City. The client is Singapore takes 40 milliseconds to execute a transaction and European clients only need 30 milliseconds. Singapore, although farther away, has a faster connection and is expected to get it done in the same time as Europe. What now? Take a BESTline. Use a client in New York City running the same transaction in the same way on similar equipment on the same server as the other two tests. You may discover that it still takes 25 milliseconds! This may due to various issues in the Data Center, Server or PC itself, 25 milliseconds is the fastest it goes!

This means that the first 25 milliseconds have nothing to do with the transport distance or speed. It DOESN’T mean that you have to accept those 25 milliseconds. There is a great deal that can be done about it. However, it is not the network and you now know you have to focus on the Server, PC, Data Center and other components.

Such controls are easy to do–yet seldom done. That common error results in many false leads and false errors as well as lost time and money.

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