RE: standalone vs array
- From: John Burridge <JBurridge@xxxxxxxxx>
- To: "'[ISAserver.org Discussion List]'" <isalist@xxxxxxxxxxxxx>
- Date: Wed, 14 Nov 2001 15:33:22 -0000
1) Yes - you enter two DNS entries for whatever name you choose, and point
them to the internal NICS ip address on each
2)To get fault tolerance, install the firewall client on end users machines.
Arrays are a real pain in the proverbial if one line goes down. You will get
no access for any user until you stop the services on the down server, or
the line comes back up. I got around this by installing webtrends on each
server, and creating a job that pinged an external router. If it couldnt
reach that, I had it run a job that stopped the services, and then ran one
to start them when the line came back up. It has worked very successfully so
far.
3)You could get load balancing, as the DNS entry will alternate which server
you are sent to, but you will not get fault tolerance without the Firewall
Client.
John Burridge
-----Original Message-----
From: Periyasamy, Raj [mailto:psraj@xxxxxxxxxxxx]
Sent: 14 November 2001 15:31
To: [ISAserver.org Discussion List]
Subject: [isalist] standalone vs array
http://www.ISAserver.org
I am currently managing two standalone ISA serevrs load balanced with NLB
for internal users. All users access the ISA using the NLB virtual host
name. I am planning to migrate these two servers to an array (since our AD
is now in place). Once the array is inplace NLB will be uninstalled.None of
the clients are using firewall client in my network.
Questions:
1) Once I migrate to an array, will it be possible to access the array using
a virtual host name like used by NLB. How is the virtual name assigned to
the array?
2) How is the fault tollarance and load balancing applied to the clients?
Currently none of my clients are using the auto configuration script, They
point to the VHost name of the NLB host.
3) Is it possible to make use of the array's FT and LB features without
using the firewall client in workstations?
I would appreciate all inputs...
Thnaks in advance.
Regards,
Raj
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