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Using TWO NIC CARDS FOR WEB SERVER AND LAN???

Posted on 2006-10-27
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Last Modified: 2013-11-30
I have a windows 2003 Enterprise server and three WinXP Pro workstations.  
The server is a web server that hosts IIS6 and SQL Server 2005, I want to make another Win 2003 server handle just database so the other can focus on web hosting.  

At present moment the server is connected to only ONE NIC (although it has two)  and this NIC handles local and web traffic.  I am having a problem (A BIG SERIOUS PROBLEM) with my WinXP machines bringing down the network when they boot up..  I've tried configuring the static IPs etc..  

MY QUESTION:
What are the benefits of installing and using TWO NICS on the web server, do you recommend it?  Will it help solve the network problems I am experiencing?    Can anyone offer advice about some good network troubleshooting methods or software to find out or track what might be happening..  This also happens when wireless laptops try to access the router..  

Basically Is there a greater benefit to installing two NIC cards?
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Question by:kibbs
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by:Greg Groth
ID: 17820410
Install the second NIC... use a consecutive IP addy...
edit host file on all PC's so it will only use the new NIC to chatter with the Server.

A second NIC is most useful for heavy traffic between two servers.  Also depending on the switch it can help balance the load if the capability is there.

The only reason I can think of for the XP's to be killing the server at login is that they likely have Offline files enabled... (by default)  Turn it off so when the PCs login/logoff they don't cause so much traffic.  
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by:Greg Groth
ID: 17820424
Two NICs also provide a failover mechanism.
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by:kibbs
ID: 17821257
And for each NIC opn the server that I will be adding.. Just connect to the switch?  Or should one go to swith and one to router?  Does it matter?    Where to shutoff offline files?
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by:Greg Groth
ID: 17821381
Open any folder, under Tools, Click Folder Options, click the Offline Files Tab, uncheck the box for offline files.
Did the server come with teaming software or load balancing options?
If you have two switches I would put one on each switch or else just put them both on the same switch.
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by:Greg Groth
ID: 17821438
before you move anything what is your current setup?  
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Author Comment

by:kibbs
ID: 17821638
WINDOWS SERVER IS IN THE LINKSYS GIGBYTE 5-PORT SWTCH,
WIRELES G CABLE GTEWAY ROUTER (CABLE MODEM)

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by:Greg Groth
ID: 17821663
Does the wireless G router have available ports?
What is the speed of the ports on the router?
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Greg Groth earned 500 total points
ID: 17822177
Here is why it does matter... Find out where you want the bottle neck to be... account for all the traffic that is going on... DHCP/DNS/TCP/IP...

Since you don't have enough ports to connect everything to the Linksys make sure that all clients are on the linksys with one of the server cables.  Use the host file and settings in DNS to ensure that the comms between the server and your computer use only that cable.  

Connect the other to the router and ensure that all the comms from the outside  use this cable.  Bring up a packet sniffer on the server and check to ensure that all comms are going as planned.  You will end up with a connection only for web hosting services and another only for LAN services.
Good Luck...
Greg
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Author Comment

by:kibbs
ID: 17850138
regarding the XP machines failure to login to network, part of the problem I discovered was I went into control panel and reviewed the windows components..

There were unchecked, uninstalled wondows components in Management and Monitoring Tools..  I added WMI SNMP provider, SNMP, and the XP machines worked, got on the network without crashing..

Re: Multi_NICs
I'm going to use your suggestiong on the multi-NICs to establish the new server.  Thanks for your help!

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by:Greg Groth
ID: 17853843
You are welcome for the assistance...  I hope all goes well with the new server.  I am glad you found the failure area with those logins..
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