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Networking Tips & Tricks

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  #41 (permalink)  
Old 08-18-2007, 06:58 AM
arjkhanna arjkhanna is offline
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Default Re:How to block outgoing mail.

Hi

I agree.
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  #42 (permalink)  
Old 08-18-2007, 07:00 AM
bluesky bluesky is offline
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Default Re:How to block outgoing mail.

Hi all,

My understanding is that it is possible to set up MS Outlook to access Yahoo mail, if desired. But from the description above, that does not sound to be relevant to the poster's problem and I also believe that the network admin has his own way of getting these emails outside of the Yahoo account, itself.
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  #43 (permalink)  
Old 08-18-2007, 07:02 AM
arjkhanna arjkhanna is offline
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Default Re:How to block outgoing mail.

Hi
You need the paid Yahoo service to use pop3. There are also small utilities which interface between the web and standard protocols. They're not made by Yahoo and I have no idea what Yahoo's stance on them is.
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  #44 (permalink)  
Old 08-20-2007, 08:21 AM
arjkhanna arjkhanna is offline
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Default Dial up access

Hi,

When I reboot my System I have about six minutes to access my e-mails and /or non secure websites. After that time I receive "The page cannot be displayed" and "Cannot find server or DNS Error".

I have no problem accessing Outlook Express or my Secure financial websites.
I am not able to dl any updates due to the short time frame.

I have no problems on WAN or LAN access. Unfortunately I only have dial up at home. HELP!
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  #45 (permalink)  
Old 08-20-2007, 10:25 AM
bluesky bluesky is offline
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Default Dial up access

Hi

When I reboot my system I have about six minutes to access my e-mails and /or non secure websites. After that time I receive

"The page cannot be displayed" and "Cannot find server or DNS Error".

I have no problem accessing Outlook Express or my Secure financial websites.
I am not able to dl any updates due to the short time frame.

I have no problems on WAN or LAN access. Unfortunately I only have dial up at home. HELP!
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  #46 (permalink)  
Old 08-20-2007, 12:29 PM
arjkhanna arjkhanna is offline
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Default Re:Dial up access

Hi bluesky,

Have you scanned for worms? Have you called your service provider?
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  #47 (permalink)  
Old 08-20-2007, 12:37 PM
bluesky bluesky is offline
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Default Re: Dial up access

Hi arjkhanna,

I have scanned with three different programs.

I have reinstalled XP.

I have reinstalled IE.

I have reinstalled my DUN access.

I have not called my service provider because my PC as well as my old laptop are working fine over the same ISP.
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  #48 (permalink)  
Old 08-20-2007, 12:39 PM
arjkhanna arjkhanna is offline
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Default Re:Dial up access

Hi ,

If it is exactly 6 minutes everytime something is probably timing out. I haven't clue what that something is other than your service provider.
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  #49 (permalink)  
Old 08-20-2007, 12:40 PM
bluesky bluesky is offline
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Default Re:Dial up access

Hi arjkhanna,

I did some more accurate timing and here are the results:

Scenario 1)
Power up laptop, dial up ISP ... I have 11 minutes before no access to non secure sites. No problem with secure sites and Outlook Express.

Scenario 2)
Power up the laptop, wait... Dial up ISP after 5 minutes... I have about 6 minutes to access non secure sites. No problem with secure etc.

It appears like some buffer in the laptop rgardless of ISP connectivity is filling up. How is that for a techie analysis?
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  #50 (permalink)  
Old 08-20-2007, 12:41 PM
arjkhanna arjkhanna is offline
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Default Re:Dial up access

Hi blusky,

Are you saying that after after a period of time you cannot access unsecure web sites, but you can still access secure web sites?
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  #51 (permalink)  
Old 08-21-2007, 02:16 AM
bluesky bluesky is offline
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Default Re: Dial up access

Hi arjkhanna,

Yes.

I can always access my secure Bank sites (https) as well as Outlok Express.
But any http type adress I can forget about. Therefore no web pages nor any other e-mail addies.

I am totally confused.The ping thing works as well as MSN messenger ... all the time.
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  #52 (permalink)  
Old 08-21-2007, 05:32 AM
satheesh satheesh is offline
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Default Re: Dial up access

Hi,

change browser settings to default.

try different browser IE firefox, if you have to download on a diff comp and burn a cd or something to stick it on your laptop.

or IE reset web settings in the programs tab, and restore defaults in the advanced tab.

not saying it'll work! but just try it.

doesnt sound like a problem with the computer at all, sounds like your browser is messed.

because if you can still access secure sites and your emails (outlook express) then you can surly ping and are getting a valid ip from the router. so yea my determination is it has to be something in the browser.

but arjkhanna may be partly right! it could be related to a virus or adware spyware
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  #53 (permalink)  
Old 08-21-2007, 06:04 AM
rrrajesh84in rrrajesh84in is offline
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Default Re: Networking Tips & Tricks

hi

this post explains how to measure the performance of the Network

The measure of computer network performance is commonly given in units of bits per second (bps). This quantity can represent either an actual data rate or a theoretical limit to available network bandwidth. Modern networks support very large numbers of bits per second. Instead of quoting 10,000 bps or 100,000 bps, networkers normally express these quantities in terms of larger quantities like "kilobits," "megabits," and "gigabits."
The following equations define the mathematics behind these terms:
  • 1 Kbps = 1 kbps = 1 kilobit per second = 1,000 bits per second
  • 1 Mbps = 1,000 Kbps
  • 1 Gbps = 1,000 Mbps
In networking, both "kbps" with a lowercase 'k' and "Kbps" with an uppercase 'K' can be used interchangeably.

Technically, network speed can also be expressed in units of bytes per second, abbreviated as "Bps" with a capital 'B'. Use of these quantities is discouraged in networking to avoid confusion with the bits per second standard:
  • 1 KBps = 1 kBps = 1 kilobyte per second = 8,000 bits per second
The conventions used for measuring the capacity of computer disks and memory might appear similar at first to those for networks. Do not confuse these conventions. Capacity is normally measured in units of "kilobytes," "megabytes," and "gigabytes." In this non-network usage, 'K' represents a multiplier of 1,024 and 'k' represents a multiplier of 1,000 capacity. The following equations define the mathematics behind these terms:
  • 1 KB = 1,024 bytes
  • 1 kB = 1,000 bytes
  • 1 MB = 1,024 KB
  • 1 GB = 1,024 MB
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  #54 (permalink)  
Old 08-21-2007, 09:20 AM
arjkhanna arjkhanna is offline
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Default Re:Dial up access

Hi satheesh,

Yes. I don't believe I've seen the problem before.

When it happens, try opening a DOS window and clearing the DNS cache' with...

ipconfig /flushdns

...but that doesn't explain why ping still works when http doesn't.
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  #55 (permalink)  
Old 08-21-2007, 10:25 AM
shaalini shaalini is offline
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Default Re:Dial up access

Hi ,

I think your best bet is to reinstall internet explorer.
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  #56 (permalink)  
Old 08-21-2007, 11:28 PM
rrrajesh84in rrrajesh84in is offline
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Default Re: Networking Tips & Tricks

Define (Wireless / Computer) Networking?

In the world of computers, networking is the practice of linking two or more computing devices together for the purpose of sharing data. Networks are built with a mix of computer hardware and computer software. Area Networks

Networks can be categorized in several different ways. One approach defines the type of network according to the geographic area it spans. Local area networks (LANs), for example, typically reach across a single home, whereas wide area networks (WANs), reach across cities, states, or even across the world. The Internet is the world's largest public WAN.


Network Design

Computer networks also differ in their design.

The two types of high-level network design are called client-server and peer-to-peer. Client-server networks feature centralized server computers that store email, Web pages, files and or applications. On a peer-to-peer network, conversely, all computers tend to support the same functions. Client-server networks are much more common in business and peer-to-peer networks much more common in homes.
A network topology represents its layout or structure from the point of view of data flow. In so-called bus networks, for example, all of the computers share and communicate across one common conduit, whereas in a star network, all data flows through one centralized device. Common types of network topologies include bus, star, ring and mesh.


Network Protocols


In networking, the communication language used by computer devices is called the protocol. Yet another way to classify computer networks is by the set of protocols they support. Networks often implement multiple protocols to support specific applications. Popular protocols include TCP/IP, the most common protocol found on the Internet and in home networks.


Wired vs Wireless Networking


Many of the same network protocols, like TCP/IP, work in both wired and wireless networks. Networks with Ethernet cables predominated in businesses, schools, and homes for several decades. Recently, however, wireless networking alternatives have emerged as the premier technology for building new computer networks.
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  #57 (permalink)  
Old 08-22-2007, 02:32 AM
JSureshkumar JSureshkumar is offline
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Default Re:Dial up access

Hi,

How about trying another browser like Firefox and see if the problem is still there. That is one strange problem that I also have never seen.
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  #58 (permalink)  
Old 08-22-2007, 05:28 AM
bluesky bluesky is offline
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Default Re:Dial up access

Hi all,
I have uninstalled and reinstalled IE.
I have tried OPERA.
I have uninstalled and reinstalled my modem and ISP access.
I have done the flushdns thingy.
I am ready for f:c.
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  #59 (permalink)  
Old 08-22-2007, 05:38 AM
arjkhanna arjkhanna is offline
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Default Re:Dial up access

Hi ,

What is the meaning of, "I am ready for f:c."
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Last edited by arjkhanna : 08-22-2007 at 08:15 AM.
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  #60 (permalink)  
Old 08-22-2007, 08:18 AM
bluesky bluesky is offline
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Default Re: Networking Tips & Tricks

Hi all,
Format C
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