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Questions tagged [nlb]

Network Load Balancing (NLB) is a component in Windows Server operating systems that load balances network traffic (sent to a cluster virtual IP address) among multiple servers in an NLB cluster.

125 questions
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Linux equivalent of Windows NLB

With Windows, we can setup load balancing for arbitrary IP services just by installing NLB and selecting which nodes we want in the cluster. It does some MAC address changing, then has algorithms to decide which node handles an incoming request. Is…
MichaelGG
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Load balanced IIS. Should I use NLB, or linux-based reverse proxy, or something else?

What would be the best approach for load-balancing at least 2-3 Windows 2008 R2 IIS webservers running a multitude of .NET applications? My choices appear to be: 1) Hardware-based network device load balancer, like a Cisco CSS 2) Windows NLB 3) Some…
growse
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Providing High Availability for NPS

I need to ensure high availability for RADIUS service in Windows Server environment so it can withstand loss or even temporary downtime of any particular server holding NPS role. Most of technet articles state that I should use NPS Proxy, but in my…
strange walker
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How NLB will work with IIS-7 web services?

We'are going to join 2 (two) IIS7 web-servers into NLB with the same web-service published (2 instances of the same web-service one per web-server). Do I understand correctly, that NLB will work for my web-services, delegating web requests to one…
Andrew Florko
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Setting up Multicast NLB Cluster with HP 6120XG Switch

How can I setup an NLB cluster across 2 blades connected via a HP 6120XG Switch? All of the guides are for Cisco and setup static ARP entries on the switch but that is not possible on the HP Switch. Any help would be apreciated Thanks Dan
Dan
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Cannot add second host to a Network Load Balance cluster

I am using Network Load Balancing on Windows server 2008. (Servers have two NIC's and the cluster is configured to run in unicast mode) I can configure the cluster on either of the hosts and add the host on which I create the cluster. However, as…
alanben
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Unreachable Hosts in Windows NLB on VirtualBox

Setup Cluster : Two Windows Server 2008 R2 nodes. Each running as a VM inside of VirtualBox. Each Node has NLB enabled and a cluster configured. The cluster is configured to use IGMP Multicast. Network : Each node is communicating on top of…
bearrito
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Does Windows Network Load Balancing require any specific ports to be open?

I have two Windows 2012 servers, joined in a Windows Network Load Balancing cluster. I have been trying to find how the NLB heartbeat message is exchanged between those servers (to make sure it will not be blocked by anything on the production…
rinspy
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How do you setup FTP with IIS Manager Users in an NLB environment with shared IIS configs?

I've setup a 2 node NLB cluster and used the following to share IIS configs between them. http://blogs.technet.com/b/meamcs/archive/2012/05/30/configuring-iis-7-5-shared-configuration.aspx The IIS configs and content is located on a network share…
William Jens
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MS NLB: why are multicast packets received by all servers on the LAN, not just members of the cluster

I have a MS NLB cluster (Win 2003) which includes just two hosts. The cluster is configured to use Multicast operation mode (not IGMP). For some reason I am seeing packets intended for the NLB cluster Destination:…
Afanasii
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How to setup NLB and ARR in server 2008 R2

I'm in charge of deploying a web application. I don't have a hardware load balancer to use. So I thought I could use NLB+ARR. Need to use ARR because my team needs to be able to take one of the 2 applications offline for matinenance and not have…
Chris-AZ
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iis 7.5 - WFF and ARR farm management

We have two test web farms (IIS 7.5). The Florida web farm has two ARR servers and two content servers. The ARR servers have WFF and NLB installed. The ARR setup uses a shared config located on a file share. The content servers do not have WFF…
smackaysmith
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Multiple web servers in a IIS web farm behind a single IP address

I have 4 web servers (Windows Server 2008 R2) and just one public IP address. They all need to be a part of web farm (so the requests for the site are spread over all servers). Two questions: 1) Is it possible and how, or must I have 4 public ip…
eltorro2
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Hyper-V, NLB, ARR cannot connect 1 host to another

I'm having trouble connecting 1 host to another even with windows firewall off on bot the VM and the host machines they cannot seem to find each other. Running Windows Server 2019 HyperV Host1: VM Domain Controller (Connected to domain) VM NLB1…
UserSN
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NLB configuration

I have an NLB configured for two web servers. The NLB is a software NLB configured on Windows Server 2008 R2. The web servers are IIS servers. For a request of 5000 users, all my requests are going to one web server. So when does NLB send requests…
Prashant
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