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.
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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 ...
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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 ...
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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 ...
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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.
...
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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 ...
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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 ...
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Unreachable Hosts in Windows NLB on VirtualBox [closed]
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.
...
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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 ...
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2
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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 ...
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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 ...
eltorro2
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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 ...
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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 ...
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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 ...
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Does Windows 2008 Server Standard Edition, support Network Load Balancing?
Does Windows 2008 Server Standard Edition, support Network Load Balancing?
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Achieving mTLS with AWS ALB
If I have an ALB in my infrastructure with ECS target groups downstream, will SSL/TLS always be terminated at the ALB?
If so, are my only options ELB/NLB to preserve the SSL/TLS context?
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Does AWS Network Load Balancer decrypt packet in TLS termination mode?
Architecture:
client <-- TLS --> AWS Network Load Balancer port:443 <-- TLS --> backend server port:443
In the above architecture, TLS is terminated at the network load balancer (NLB).
Is TLS ...
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3
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Maximum concurrent connections to a Microsoft NLB Cluster
We recently had a problem with maximum conncurrent connections on a Microsoft NLB cluster, that I got an answer to on stackoverflow:
https://stackoverflow.com/questions/909677/iis-6-0-server-too-busy-...
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HTTPS 308 permanent redirection k8s ingress nginx
I have created an EKS cluster following the examples from AWS EKS, I have deployed the nginx ingress controller on top from kubernetes/nginx, Created an ingress resource which points to back end k8s ...
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1
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NLB ARR cross-node setup
Given:
one ASP.NET web application
2 Windows servers with IIS installed (no more servers allowed)
I want to enable load balancing / failover for that application, on both server and application ...
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1
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Setting up NLB in a VLAN
I have a network layout like this (ESXi hosts):
Internal Network
+
+-----------------+ ...
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3
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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 ...
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1
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Implementing a Highly Available backend gateway for a cloud app on AWS
I have 2 EIPs allocated for a cloud app, which are used in round robin DNS. I'd like to have some sort of high availability mode for our 2 gateways (proxies) which are associated with those EIPs, so I ...
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Drainstopping NLB via powershell remotely
This question was asked by a colleague on SO here, though it was suggested that we ask it here instead - apologies for the cross posting.
Server is Windows Server 2008 R2
- UAC is disabled on the ...
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Sharing Windows 7 NLB in home network [closed]
I have read this question and have been googling trying to do what is in the title, with no luck. I´ve tried bridging connections, ICS, etc.
I have two separate internet connections from two ...
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NLB for incoming SMTP connections from a single server
We have 2 Exchange CAS servers running NLB. We use an outsourced SPAM provider who forwards messages to us. All of the messages from them go to a single CAS server because we only see one IP address ...
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Network Load Balancing Windows server 2008
I have a questions about load balancing configurations. Maybe someone already asked this question but I didn't find something similar on the web.
The Actual Configuration is .
I Have two servers ...
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1
answer
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NLB RPC server is unavailable on the specified computer
Firstly, I'll admit that my networking knowledge is limited so as people request more information I'll update this question accordingly.
I am trying to create a NLB Cluster across 2 Windows Server ...
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Unable to add a second Windows Server 2008 to a NLB cluster
I am trying to setup a 2-node cluster with NLB on Windows Server 2008 R2 standard.
One the first node (node A) I successfully create a cluster containing it. However, when from node A I attempt to ...
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Uneven load with Microsoft Network Load Balancing (Server 2003)
I am a network administrator at a small company that uses Network Load Balancing (NLB) to cluster our terminal servers together. Recently, we changed our network setup due to PCI-DSS compliance. ...
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AWS NLB HTTPs health check using mTLS
Is it possible to do a AWS NLB HTTPs health check using mTLS?
I tried setting up a TLS listener, loaded my cert, setup a TLS target group with HTTPs health check, but the health checks are still ...
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0
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Hyper-V, NLB, ARR cannot connect 1 host to another [closed]
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 ...
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New-NlbCluster Access denied
This is a question and answer at the same time that I want to share to the community because google search "New-NlbCluster : Access denied" did not bring any results.
Problem:
Starting from 15 Apr ...
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Will putting 2012 R2 RD gateway server into Drainstop disconnect currently active users?
I have had a bit of a search for clarification on this, but have only found info on draining session hosts.
I need to make some amendments to our 2012 R2 gateway server VMs, but due to the nature of ...
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NLB - detect service down
I am trying to work out how to use PowerShell to detect when a load balanced (NLB) Apache service is no longer accepting requests (but the service is still running).
Windows NLB detect dead IIS? ...
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WS2008R2 - Network Load Balancing and IIS - I have no idea
I'd like to avoid discussion of IIS ARR for now - it isn't essential to get NLB working.
I have two computers (both in the same domain, btw) who are connected to two networks:
A private internal ...
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Dynamically add Server 2008 NLB Nodes
I have a small NLB cluster for Terminal Servers. One of the things we're looking at doing for this particular project (this is for a college class) is dynamically creating Terminal Servers.
What we'...
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Windows NLB detect dead IIS?
We're running 4 webservers through NLB, however every once in a while a single IIS dies on us (not the Windows, it still works, it's just the IIS returns 503 Service unavailable)
Is it somehow ...
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How to replicate wwwroot over multiple IIS web servers with NLB without NAS?
We're adding a second server with Windows NLB for a bit of redundancy (ie the power goes on one of the servers - I know its not the best solution).
How can we keep the data identical between the ...
Igor K
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Good idea to use NLB for DNS servers?
Is it a good idea to use NLB to load balance DNS requests to primary and secondary dns servers on port 53?
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Problems connecting 2nd host to NLB cluster
I've recently deployed Hyper-V into my hosting infrastructure and i'm trying to setup windows network load balancing and ARR so that i can have 2 VM web servers that are load balanced by 2 ARR servers ...
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Windows NLB is not forwarding UDP
I have setup Windows NLB which works fine with http. But it is not forwarding the UDP reply to the client.
Backgroud:
NLB - 192.168.1.10
Host1 - 192.168.1.11
Client - 192.168.1.5
I am forward all ...
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Issues with NLB on Windows 2012
I'm running into an issue when setting up NLB for three virtual servers on vSphere. Each server is running Windows Server 2012 and has a single static IP address. One of the servers has a second NIC ...
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Windows Service Bus and Network Load Balancing
I'm looking to build an HA service bus farm, hopefully using Microsoft NLB on Windows Server 2012 R2, something like what is described here.
In the output below 9354 belongs to Microsoft.ServiceBus....
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How to synchronize applications between two terminal-service servers?
We have two terminal-service server and we use Network Load Balancing (NLB) to cluster this two terminal-service servers together.
We need to have the same applications installed on the two servers, ...
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Is there a primary webserver in a NLB scenario?
I help administer a small NLB that points to two Windows Servers running IIS which share a configuration. The sites' flat files are replicated using DFSR.
I get the gist of how this all works from ...
user28664
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1
answer
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Advantage of Microsoft Cluster over Microsoft Network Load Balancer
Till recently, I assumed that Microsoft NLB worked at an OS/Machine level rather than an Application Level. i.e. the NLB just monitors heartbeats on the machine to check if machine is alive and then ...
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MaxKeepAliveRequests for IIS7 (with NLB)
We have an IIS7 running on several nodes in an NLB cluster. The NLB nodes are set to Affinity:None so that new connections are spread across them. We want KeepAlive switched on so that we can get ...
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Windows Network Load Balancing on ESX Cluster with Dell PowerConnect stacks
We recently switched out our Cisco 6500 core switch for a pair of Dell PowerConnect 6248 stacks. Since then, our Network Load Balanced Sharepoint, which runs on two virtual machines on an ESX cluster ...
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How do I prevent a server from joining the NLB when it starts up?
I have a problematic Windows Server 2003 box (MOSS 2007) that caused problems so we shut it down. When we bring it back up it joins the NLB (one other server) and causes problems. We tried shutting ...
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ISP Load Balancing with ISA 2006
I understand that ISA 2006 has an integrated Network Load Balancing feature. We also recently acquired a second internet line through a second service provider. I know it is possible to purchase a ...
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