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In this article on dial up internet connections we look at how we can use internet connection sharing to provide access to the internet from multiple computers on a network while only requiring one of them to have a modem attached.

Sharing an Internet Connection

When you can’t connect to another computer on your local network or the internet then there are a number of possible causes. The first step is to work out where the problem is and to do that we need to use commands that will test the network connection and tell us a bit more about what is and isn’t happening.

Testing your Network Connection

There are hundreds of different graphics formats out there used by one computer program or another. Many are exclusive to the one program and can’t be read by any other. There are a few formats though that are supported by many different graphics programs. In this article I discuss the formats suitable for both internet use (those supported by web browsers) as well as those suited to sharing your images with others (supported by most graphics programs) as well as providing a list of some of the other graphics formats that are supported by at least a few different graphics programs.

Choosing a Graphics Format

Internet Protocol uses what are called “port” numbers to identify different types of communications on the web. Programs ‘listen’ on particular ports to identify the traffic that is intended for them. This article provides a brief introduction to what port numbers are all about and identifies the ports used by some of the most commonly used server programs on the internet.

Internet Port Numbers

After two weeks without internet access I managed to arrange with the insurance company to obtain a new ADSL modem so as to get my internet connection working again at the end of last week. I have just spent a large part of the weekend attempting to catch up with some of the things that I usually do daily or weekly that I couldn’t do at all while my internet access was down. Fortunately I had been able to borrow access to be able to handle at least some of my email during that period as it would otherwise have taken a lot longer just to read through all the thousands of emails.

It may take another week or two (hopefully not longer) to get the rest of the insurance claim sorted but at least I am able to gradually work through the backlog of tasks.