Troubleshooting
Techniques
Connecting
Windows NT machine to a Novell Server, configuring
WinProxy, installing Ethernet card drivers, IPAT,
NAT and everything in between
In
my office I have installed Novell 4.11 server on the
network and a printer is connected to the network.
I have now bought a new PC with an Ethernet card.
Please let me know about:
1)
The protocols to be set for connecting the Windows
NT machine to Novell server.
2)
The process or configuration to be made on the Windows
NT machine to be able to use the printer connected
to the Novell server.
You
can use IPX/SPX protocol to connect your Windows NT
machine to the existing Novell Server.
To
install a network printer one that can be directly
connected to the network-such as HP's JetDirect series,
you need to make sure that the correct network protocol
is installed and configured before proceeding with
NT printer configuration. Please refer to your printer
documentation to determine what network protocol you
need.
The
HP network-attached printers require the DLC protocol.
To install DLC,
-
Click Start.
-
Go to Settings - Control Panel.
-
Double click on the Network icon.
-
Click the Protocols tab and click
Add.
- Select
the DLC protocol and click OK.
-
Type the path to your Windows NT Server CD-ROM
and click OK.
-
Close the wizard and restart your system.
Please
follow the steps given below to install a printer
on Windows NT
-
Click on Start - Settings - Printers to display
the Printers folder.
-
Double click the Add Printer icon.
You'll see the Add Printer dialog
box.
-
If you are connected to a printer shared on the
network, choose Network printer server. Click
Next.
-
In the Connect to Printer dialog box, type or
select the shared printer to which you want to
connect. If you already have a printer installed,
click Yes or No, depending on whether you want
this printer to be the default printer for your
Windows applications. Click Next and Finish.
-
A new printer icon appears in the Printers folder.
Double click on it to view and manage the printer.
want to configure 7 nodes on Windows proxy, with one
server
based on NT. How do I go about doing it?
Before
installing WinProxy on your client/server machines
you need to configure the client/server systems with
different IP addresses.
(E.g.192.123.0.1
for server and 192.123.0.2 to 192.123.0.8 as clients)
Install
WinProxy on the Windows NT Server. Configure the client
systems (each system) accordingly:
-
Select Internet option in Control panel.
-
Select Connect tab, go to Proxy
Server option and click the Check box.
-
Click Advanced button and key-in the NT Server
IP address.
-
The default port for HTTP is 1080 and for FTP
is 21.
Change
the above settings for all your seven nodes to work
on WinProxy.
Now
that you've added TCP/IP to all your computers, let's
run a test to determine if Network Neighborhood is
up and running properly. If it is, you'll know that
the hub and cables are working correctly. We'll use
Ping for our test. It's a simple tool included in
Windows 95/98 and NT that allows easy checking of
TCP/IP connectivity.
Firstly,
open a DOS window (Start - Program - MS-DOS Prompt
under Windows 95/98, and Start - Program - Command
Prompt under Windows NT) and type the word Ping. You'll
see a list of commands and command syntax.
If you're on, say, client machine 192.123.0.1 you
can check your
connectivity
to the WinProxy machine by typing in its IP address
(192.123.0.3) after you type the word ping. If TCP/IP
is properly set up on both machines you'll get several
lines that say Reply from 192.123.0.1
, If you
get no reply, something is wrong with the protocol
installation of the IP address on one (or both) machines.
Please
verify the IP addresses if you find any problem.
How
to install drivers for the Ethernet card?
Follow
the steps given below to reinstall drivers for your
network/ Ethernet card:
- Go
to Start - Settings - Control Panel and then double-click
System.
-
Click the Device Manager tab.
-
Click the Network Adapter branch to expand it,
select Network card drivers.
-
Click Remove.
-
Insert the driver CD into the CD-ROM drive and
click on Refresh.
-
When prompted to "Specify the location for
the driver", point to the driver file in
the CD.
-
Click Finish to complete the installation of the
drivers.
-
Restart the computer.
In
order to install TCP/IP and NetBEUI protocols try
the steps
given
below:
-
Right click Network Neighborhood icon on your
desktop, and select the Properties option.
-
From the Network dialog box, select the Configuration
tab.
-
In the Configuration tab click the Add button.
-
From the Select Network Component Type dialog
box, select Protocol and click the Add button.
-
From the Select Network Protocol dialog box, under
the Manufacturers list select Microsoft. Under
the Network Protocols list select NetBEUI and
TCP/IP protocols.
- Click
OK to finish the procedure.
In
order to install "Clients
for
Microsoft network" try the following
steps:
-
Right click on the Network Neighborhood icon,
from the short cut menu select the Properties
option.
-
From the Network dialog box, select the Configuration
tab.
-
In the Configuration tab click Add.
-
From the Select Network component type dialog
box, select Client and click the Add button.
-
From the Select Network protocol dialog box, under
the Manufacturers list select Microsoft. Under
the Network clients list select Clients for Microsoft
Networks.
-
Click OK.
In
order to install printer-sharing Microsoft Network
follow the steps given below:
- Right
click Network Neighborhood, and select the Properties
option.
-
From the Network dialog box, click the Configuration
tab.
-
In the Configuration tab click the Add button.
-
From the Select Network component type dialog
box, select Service and click the Add button.
-
From the Select Network services dialog box, under
the Models list
select File and printer sharing for Microsoft
network.
What
is Internet Connection Sharing over a network?
Internet
Connection Sharing (ICS) is a new feature that comes
with Windows 98 Second Edition and Windows 2000. It
allows two or more networked computers to share a
single Internet connection. The problem is that the
Internet Connection Sharing Wizard that comes with
Windows 98 Second Edition doesn't work very well,
and in some cases, can break your existing Internet
connection. The good news is that it's not that hard
to set up, as long as you do it properly.
Internet
Connection Sharing technology provides home and small-business
PC users who have networked computers the ability
to share a single connection to the Internet. For
a family with multiple PCs and other Internet devices,
Internet Connection Sharing allows one person to send
e-mail, another to play an online game, and yet another
to browse the Web. Parents can access their corporate
e-mail accounts from a client machine, while the rest
of the home network cannot access the corporate network.
What
are IPAT and NAT?
IPAT
(IP Address Takeover) feature is available on many
commercial clusters. This feature protects an installation
against failures of the Network Interface Cards (NICs).
In order to make this mechanism work, installations
must have two NICs for each IP address assigned to
a server. Both the NICs must be connected to the same
physical network. One NIC is always active while the
other is in a standby mode. The moment the system
detects a problem with the main adapter, it immediately
fails over to the standby NIC. Ongoing TCP/IP connections
are not disturbed and as a result clients do not notice
any downtime on the server.
Network
Address Translation (NAT) is a vitally important Internet
technology for a variety of reasons. It can provide
load balancing for parallel processing, it can provide
several types of strong access security, and it can
provide fault-tolerance and high-availability. Finally,
it can simplify some basic network administration
functions.
What
is Internet Control Message Protocol (ICMP)?
Internet
Control Message Protocol (ICMP) is a protocol tightly
integrated with IP. ICMP messages, delivered in IP
packets, are used for out-of-band messages related
to network operation or mis-operation. Of course,
since ICMP uses IP, ICMP packet delivery is unreliable,
so hosts can't count on receiving ICMP packets for
any network problem. Some of ICMP's functions are
to:
-
Announce network errors such as a host or entire
portion of the network being unreachable due to
some type of failure. A TCP or UDP packet directed
at a port number with no receiver attached is
also reported via ICMP.
-
Announce network congestion. When a router begins
buffering too many packets due to an inability
to transmit them as fast as they are being received,
it will generate ICMP Source Quench messages.
Directed at the sender, these messages should
cause the rate of packet transmission to be slowed
down. Of course, generating too many Source Quench
messages would cause even more network congestion,
so they are used sparingly.
-
Assist Troubleshooting. ICMP supports an Echo
function, which just sends a packet on a round
trip between two hosts. Ping, a common network
management tool, is based on this feature. Ping
will transmit a series of packets, measuring average
round trip times and computing loss percentages.
I
have a Windows NT server and two Windows 95 domains.
From the server I am able to connect to both the domains
and vise versa. But from one domain I am unable to
connect to another domain. I cannot see the name of
one domain in others' Network Neighborhood. What should
I do to configure it?
Assuming
that your network is connected via a Hub, follow the
steps to resolve the problem:
- Go
to Start - Settings - Control Panel and double
click the Network icon.
-
Under the Configuration tab, select File and Print
Sharing.
-
Check the two options I want to be able to give
others access to my files and I want to be able
to allow others to print to my printer(s) and
click OK.
-
Select the TCP/IP Protocol for NIC card installed
in the same tab and click the Properties button.
-
Check the option File and printer sharing for
Microsoft networks under the Bindings tab.
-
Click OK.
All
responses have been provided by Qsupport Technologies
Pvt. Ltd., Bangalore, a 24x7, e-services company offering
online advice and solutions for any Internet or computing
usage problems.
Please post your technical queries
to netmagindia@vsnl.com