Tag Archives: matter

Troubleshoot a Slow Computer Network – Only One Computer on the Network is Slow

Only One Computer on the Network is Slow

Client Computer Network Mask Wrongly Configured
Your network is a class C network, (net-mask 255.255.255.0), and your client computer has its IP address configuration on a class B network, (255.255.0.0). Change the network mask of the client to match the network configuration.

Poor network cards
Bad network cards or bad drivers are very often the reason for poor transfer rates. Test the transfer rate with a different network card.
An outdated computer can also slow down your network transfer.

Bad Network Configuration
DNS Configuration
can be the cause a of slow network connections.
Wrong DNS address in the IP configuration can slow your network dramatically. Your DNS client will try to connect to an inexistent or not working DNS server then give up and try your secondary DNS server. This translates in slowdowns and sometimes even DNS resolution errors.
Fix: Ping the DNS address or, even better, use nslookup and connect to both of your DNS servers to check if they work.

The TCP/IP protocol stack corrupted.

Sometimes no matter what you do you can’t fix the network and this is because the TCP/IP becomes corrupted. The only thing that fixes it is a reset. On older Operating Systems, such as Windows 98 and Windows NT, the fix was to uninstall and reinstall the whole TCP/IP suite of protocols.
Fix: issue the following command to reset it: netsh int ip reset c:\resetlog.txt.

More Than One Default Route
Advanced Lan SettingsA very common mistake is to assign more than on default route to the same computer. Do not confuse load balancing with multiple Default Gateways. You are configuring two network cards, and both of them have a default gateway. This configuration will not work. Usually, a Windows computer will warn you that this is not a good idea, but some users will choose to ignore the warning.
This is a typical problem for laptop users, they connect into the Lan environment and leave the wireless connection on. This will create a lot of problems for corporate users and even for home users.
In order for this type of configuration to work, special routing rules and IP configuration is needed. it is easier to turn the wireless of or have an adapter manager that will automatically do that for you based on your rules.
Advanced Tcp/IP Settings
On a Windows XP there is a way to assign priorities to network cards using a graphic interface. from the Network Connections applet in the Control Panel, click on the Advanced menu and choose Advanced Settings.
On the Advanced Settings window arrange the network cards according to the correct priority.
Another way to achieve this is to change the gateway’s metric for each of the network adapters on the computer. To do this, open the TCP/IP properties on each of the network addapters with a default gateway configured, and click on the Advanced button. On the Advanced TCP/IP Settings window, uncheck the Automatic Metric for the Default Gateway, and enter a value according to your network topology. The lower the metric, the higher the preference for a default route.

This article is part of a five posts series regarding Network Troubleshooting.

How to Start an Internet Business

Introduction – Seven General things needed to Start an Internet Business

The Internet has opened a whole New World of opportunity for even the smallest home-based business owner. There are countless numbers of new self-made millionaires who achieved their newfound success on the Internet. These new millionaires are regular people like you and me.

They started their Internet businesses from scratch; they found a niche and built their success one day at a time. Many of asked themselves: “Can I really make money on the Internet?” The answer is simple: “Yes You Can!”

No matter whether your objective is to secure a good income and work less, or work hard and make a lot of money, you can do it. There is a

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You just have to take the necessary steps to make it happen. Don’t take shortcuts; most of the times it will hold you back. You must have a genuine desire to succeed and the correct attitude for success.

Sometimes it takes many tests and trials to get the successful business combination. Don’t consider these as failures, consider them as training sessions. Look at the whole process as you were an athlete, in order to obtain performance you need to train.

Cooking up your successful Internet Business takes a few important ingredients. Here are the most important ones:

Genuine Enthusiasm and great ideas

If you want to be successful, you need to be passionate about your business and to be an expert in the subject matter. Your passion and knowledge about the business you start will drive you to success.

A great idea of business will insure your success. A good new Internet business idea is hard to produce, mostly because someone else has already done that. But you don’t have to start something new. You need to take what you are good at and translate that on Internet. You can do something that someone else did and improve it. Or you can simply copy a successful Internet Business because you know it works. That could be writing blog content, writing eBooks, selling your products on Internet, selling services on Internet, starting an Internet store, selling photos, etc…

Writing skills

Regardless of the domain of activity, the writing material is essential for your business. Your product, web site and marketing strategies all depend upon your words. If you don’t have writing abilities you must hire someone to do the job for you.

Business Plan and an Excellent Marketing Strategy

Making your Business Plan and Based upon this creating a marketing strategy is essential for your business. In order to succeed, you must develop and implement a strategic plan.

Credibility

As an Internet entrepreneur, it is your job to guarantee that your visitors feel very comfortable with you and your web site. In order to gain your visitor’s trust and confidence, you must build your credibility. If you as a content author, subject matter expert, or goods seller don’t inspire credibility your visitors will not buy from you.

Have a Positive Attitude

Your attitude is the most important
Do not discourage keep trying, you will succeed.

Do not let temporary failure discourage you.

The secret to creating any successful business is a combination of determination, perseverance, self-confidence, and hard work.

Many people will fail just at the moment they are about to succeed; because they don’t believe enough in their success and give up.

Invest in Your Business

No matter what type of business you’re developing, you MUST be willing to invest in your business, including your time, and money.

However, to reduce risks, at the beginning you need to minimize investments and expenses as much as possible. I will show you a lot of ways to do that over the course of this guide.

You must also be willing to work hard, including educating yourself, researching, and learning how to market on the Internet.

Your passion is the fuel of Your Internet Business Project

If you are sincerely passionate about your success, you will succeed.

Chain Letters and Spam Email

Email Chain letters are one of the sneakiest and devious ways of SPAM. I consider them a particular case of social engineering.

Chain Letters Target Human Weakness and the Lack of Information.

Even though chain letters come always from your friends, and they look like their purpose is to spread “peace on Earth” or to give you an insightful perspective of life, or ask you to help someone in need, their purpose is Spamming.
You can recognize this by the encouragement to forward the message to your friends or to close the email circle or anything similar. Some of you came here as a result of my SPAM, (I apologize, I had to…).
Sometimes the spammer will go as far as threatening you to send to your friends or else something bad will happen. All of these are various sorts of psychological exploitation. They target human weakness and lack of knowledge.
Most of the times chain letters contain false, misleading, frightening, or foolish messages, Urban Legends, Virus Hoaxes. The Chain Letter has evolved now and it is more subtle nonetheless dangerous. It uses “good luck” promises, “missionary” messages, or even true philosophical dissertations.
No matter what is the method of persuasion, all the chain letters will convince you to send the letter to other people. It is very convincing and it targets human flaws. I am not an easy to scare person but I can remember myself in at least on occasion getting chills up my spine while reading the blackmail at the end of the email. Human brain is easily influenced, once the message read you will start, unconsciously, to act upon validating the prediction. It is a process similar to Hypnosis.
Best way to avoid such events is to delete the message without reading it.
There is also the positive message if you forward the message to 5 friends something wonderful will happen in your life. Who can resist such a promise? Me.

Is It Wrong to Propagate Chain Letters?

Short answer – YES – it’s wrong to propagate chain letters. Previous paragraph explains why.
Long answer:
Sometimes it is hard to ignore some of these messages and discard them. Their message is beautiful, and you would like to share it with your friends. There is not too wrong to do that IF and ONLY IF you follow these simple rules.
Use BCC field when addressing your email, (blind carbon copy). This will conceal the destination addresses.
When the chain letter arrives in your Inbox there are high chances to contain all the previous recipients into its body. Remove all the email addresses in the body, before forwarding the message. This is of no benefit to you, but it will benefit the community, and if many people do this harvesting addresses will be very difficult. Who knows on how many chain letters has circulated my email address?
If you really need to send chain letters, consider using your secondary email address.
Consistency on doing all of these will discourage the creators of such letters to write them, as the benefit from sending them will be null.

The image below shows a portion of the email body of a message that contains all the previous recipients of a chain letter. Using an email harvesting utility I got 417 email addresses only from this message.

Example of email Chain Letter
Chain Letter - Click to enlarge

What does the SPAMMER achieve by these kinds of emails?

They harvest email addresses. How do they do this? The principle is that the more an email circulate the more chances are to come back to the original sender. Even if it doesn’t come back it will go to another SPAMMER in the “Black Hat Web Marketing Community” and made public within the community. Then all the harvested email address will be shared or sold.
Another reason for circulating chain letters is scamming people. There are numerous scamming schemes circulating through emails.
There are also the hoaxes. A lot of chain letters warn about an upcoming virus or a computer threat. Most of them are hoaxes. Some of them are just simple hoax, but some other are cleverly crafted emails, so that when a recipient look for some of the keywords in the respective email, they would be directed by the search engine to targeted websites.

How can the Spammer harvest email addresses?

The main problem comes from the fact that most of the people will never think of hiding email addresses when they are forwarding messages. This makes that an email can sometimes contain hundreds or even thousands of addresses from all the people that forwarded it. The picture bellow depicts such a message.

What can you do to help?

First, whenever you send an email to a list of people add your addresses on the BCC field rather than CC or TO field. The BCC field will hide all the destination addresses.
If you forward a message, delete the transmission history in the message body. Check this article Prevent email SPAM for more information.
Break the chain! Delete the message and do not forward it. You have now the information. Stop for a few minutes before sending the email and think.
Comment on this post with positive or negative feedback. I can take critique.

I dedicate this article to Bogdan M. who first talked me about chain letters some 10 years ago.