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What is the meaning of "Port 80"

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Priyanka de silva

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Dec 7, 2009, 11:55:28 PM12/7/09
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As I have heard all the internet browsers connect to the internet through
port 80,So my question is can we change the port of the browser,if so how?

Albert D. Kallal

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Dec 8, 2009, 4:54:46 PM12/8/09
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"Priyanka de silva" <priya...@gmail.com> wrote in message
news:eIRPwM8d...@TK2MSFTNGP06.phx.gbl...

> As I have heard all the internet browsers connect to the internet through
> port 80,So my question is can we change the port of the browser,if so how?

Keep in mind that this newsgroup is actually for Microsoft access the
database program for the desktop, so really doesn't have anything to do with
the Internet itself.

however to answer your question, you can change the port that your browser
uses to connect to a website, the problem is that the web site on the other
and has to be set up different late to use a different port.

in other words most web sites default tool a port number of 80.

if you wanna specify the port number when you type in a URL or web address,
you can use the following format

www.bing.com:80

so notice all you just put a":" + port number on the end of hte web url you
type in.

As mentoned, the above will work because the default port is 80 for web
sites.

However try the follwing:


www.bing.com:90

You'll find the above will not work. The reason is is because most web
servers that dish out or supply your web pages are using port 80 to dish out
webpages. So while you can change the port that your web browser uses to
grab information, the problem is the other device or application running on
the opposite end that you're connecting to must be able to dish out pages on
that port.

You can't change the port number on the other end.

If you owned your own web server the you could setup that web server to work
on any port.

A really good way to think of this is think of the URL or the website name
or address it as a telephone number, but the port number would be like
having an extension inside the building that you connect to. The default
port is 80...

If you conneciton to a sql data base server, it uses port 1433.

So, if you have sql server and a web site, you connect to the web site with
port 80, and to sql server with port 1433.

So, Different applications running on the other end will use different
ports. If one and changes the port number on one end, the other would ALSO
have to change the port number. While you have complete control of setting
up what port number you going to use on your computer to connect out, you
have no ability to change the port number on the computer that you're
connecting to. So you have no ability to go out and changed my web server
and the fact that it uses port 80.


--
Albert D. Kallal (Access MVP)
Edmonton, Alberta Canada
pleaseNOO...@msn.com


Howie

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Dec 28, 2009, 4:04:38 AM12/28/09
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I hate it!=(

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