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.

Filter by
Sorted by
Tagged with
0
votes
0answers
36 views

Windows NLB: Stability of source IP -> target machine mapping

We are using Windows NLB in our production environment to load balance https requests to ten IIS servers. The settings are: Setting Value Port 443 Protocol TCP Filtering Mode Multiple Hosts ...
1
vote
1answer
2k views

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 ...
0
votes
0answers
59 views

Use ALB to publish a service using EKS with nodes in private subnet WITHOUT a NAT Gateway

I am using eksctl to provision an EKS cluster in my AWS account. It works fine, but I noticed it creates a NAT Gateway, which is somewhat expensive. Is there a way to have nodes in private subnets ...
0
votes
0answers
205 views

NLB with NGINX controller on my EKS cluster Each service I deploy creates its own NLB instead of using the existing one

I am trying to use an NLB with NGINX controller on my EKS cluster. Each service I deploy creates its own NLB instead of using the existing one. Here's what I'm doing, please help me where I'm going ...
0
votes
1answer
55 views

AWS NLB routing from separate CIDR block thru DirectConnect

In my VPC I have 2 CIDR blocks, one can only have a very limited number of IPs, so a very small CIDR block that also has routing rules to be able to talk through a DX to a CORP network. If I were to ...
1
vote
1answer
136 views

Configuration of Microsoft NLB

I'm having an application hosted on a VM server2012r2. This application has a webpart, running .NET 5 (Kestrel). The webpart is accessible via http://<serverip>:808 or https://<serverip>:...
0
votes
1answer
142 views

How companies use single VIP for multiple L4 services

I have two public IP's alloted by network team NAT'ed to two private IP x.x.x.2 and x.x.x.3. This private IP is assigned as a VIP on my Load Balancer. I am wondering how these two VIP's can be used ...
1
vote
1answer
1k views

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 ...
0
votes
1answer
423 views

"Could not read configuration of interface" adding new server to NLB cluster

I have a new server (Windows Server 2019) which I am trying to add to an old NLB cluster (It was set up on servers which previously did not consist of any servers newer than Windows Server 2003) In ...
1
vote
1answer
811 views

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 ...
2
votes
0answers
58 views

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 ...
0
votes
1answer
141 views

Occasional Timeouts with Zabbix agents behind an AWS Network Load Balancer

My architecture in AWS is as follows: There are 2 identical zabbix agents (based on zabbix/zabbix-agent:centos-4.0.11) each one running on a different EC2 instance. Zabbix server runs on a third ...
0
votes
1answer
1k views

Does AWS NLB accept traffic with destination IP's different from it's own?

Looking at using NLB to load balance two L3 transparent appliances, both of which listen on port 8181. But traffic hitting those appliances have arbitrary destination IP's. When I created the NLB, its ...
0
votes
3answers
913 views

Can't access EC2 instance, but not NLB in other VPC

I've recently started the process of switching from AWS ELB to NLB, and I'm facing some connectivity issues. We have 2 VPCs. In VPC1, both EC2 database servers, old ELB and NLB is located. In VPC2, ...
2
votes
1answer
68 views

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 ...
0
votes
1answer
198 views

Dualstack support for IGMP multicast NLB on Windows 2016

I have two Windows 2016 VMs set up as an NLB cluster. Each guest has two interfaces, one of which is for the NLB, the other for other traffic. I've added an IPv4 and an IPv6 address to the cluster. ...
0
votes
0answers
311 views

Windows NLB : Get-NLBClusterNode reports Invalid Data

I've setup a cluster of 2 Nodes using Windows Network Load Balancing feature. Everything is well setup, my cluster For moinitoring purposes, I'd like to get the status of the nodes within the ...
1
vote
0answers
361 views

Microsoft NLB (Network Load Balancing) and the OSI Layer

I'm unable to track down in the documentation at which layer MS NLB operates at. I'm pretty sure it's unable to interpret Application Layer 7 traffic, for example knowing that HTTP 503 is actually an ...
2
votes
0answers
398 views

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 ...
1
vote
1answer
394 views

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 ...
1
vote
1answer
563 views

Why is IIS not allowing TCP connections from external IPs through NLB

I've got a development web server environment consisting of 2 Windows 2012 VM's configured with NLB (Multicast mode.) They are each using a single network adapter with 2 IP's assigned: the shared NLB ...
2
votes
1answer
342 views

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 ...
0
votes
1answer
38 views

Network load balancer - scheduled host stop

I've three servers on a NLB Windows server 2012. At the moment each of these machines has a site with a scheduled app pool refresh which I want to handle by taking that node off line while the app ...
1
vote
1answer
5k views

Is it possible to run HAProxy load balancer on Windows Server 2012 R2 Base for production?

I want to run HAProxy on Windows Server 2012 R2 Base for production. I read this blog: http://zcourts.com/2012/09/29/install-haproxy-on-windows-cygwin-good-for-testing and it conveys that HAProxy on ...
0
votes
1answer
292 views

Setup Windows 2012 NLB with two internal servers

Im trying to setup a load balancing between two server on which a IIS website is running. I have a third server which actually is free to be used, i thought this one might be used to balance the load ...
1
vote
2answers
151 views

how should i store files for iis web root on windows servers in nlb configuration?

I have multiple windows virtual machines in a network load balanced environment. They each have a local disk (C: drive) that has the files for delivering our website (inetpub/wwwroot). The problem ...
-2
votes
1answer
1k views

Should I disable "register this connection's addresses in DNS"?

I have DC and aditional DC, both have DNS services and AD replications on. I have configured NLB cluster to used with IIS services on same servers. Problem is that the NLB cluster adress popups up ...
5
votes
1answer
6k views

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 ...
1
vote
1answer
8k views

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 ...
1
vote
1answer
520 views

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....
0
votes
1answer
2k views

Windows Server NLB vs hardware-based NLB [closed]

Can somebody with extensive experience explain me what are the selling points of hardware-based NLB over Windows NLB and what are major/main disadvantages of Windows NLB? I recently read through some ...
1
vote
1answer
5k views

Windows Server 2012 NLB logging

Can somebody clarify to me what are the best practices when it comes to configuring logging and monitoring for Windows Server 2012 NLB. I believe there are 2 types of logging from management service ...
2
votes
0answers
96 views

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? ...
1
vote
1answer
5k views

One Network Load Balancing host can't see the other

We have setup a Windows Network Load Balancing (NLB) cluster of 2 hosts for our new staging environment. The cluster initially works fine, but eventually, after stopping and starting one of the hosts ...
1
vote
0answers
1k views

Microsoft Network Load Balancing - Hosts Won't Converge Simultaneously

I am running Network Load Balancing on two Windows Server 2012 R2 Datacenter VMs in a VMWare ESXi Host environment. The cluster and hosts are configured to use multicast and all are on the same VLAN ...
1
vote
2answers
1k views

Windows Server 2008 NLB doesn't respond to ARP request

I have two instances of Windows Server 2008 running in Hyper-V VM's. The two instances are configured in a multicast NLB. I can ping either node from another subnet, but I get a timeout when pinging ...
0
votes
1answer
579 views

ARR Load Balance with two Machines - Always redirect to same Site

described steps for each setup. Created a sample Application WebShareTest , hosted the application in M1(IP 36) on port (80) and same Binary I hosted in M2(IP 210) (on port 8070) I pointed some ...
1
vote
0answers
59 views

Load balance 2 wireless adapters on 2 different computers (ie. w/NLB)

I have 2 physical servers running 2012R2. Each box has its own wireless nic. I also have 1 SSID to which both servers/WLANs connect to. While trying to setup NLB, I noticed the Wireless NICs didn't ...
-6
votes
1answer
195 views

Network Load Balancing VMWARE [closed]

Is network load balancing (NLB) with windows server 2012 using unicast and active-passive mode supported on VMWARE ? More details: I have 3 http servers running inside a windows server 2012 ...
3
votes
2answers
2k views

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 ...
1
vote
1answer
925 views

Windows multicast NLB with Linux clients

I'm (on behalf of a client, anyway) having some troubles with Linux accessing a multicast NLB cluster hosted on Hyper-V (waiting for more information on what version, but I don't think the version is ...
0
votes
1answer
141 views

How do I know which node in a cluster answers?

I have set up an NLB with two servers (nodes) which are running the same service. The filtering is single host, because I don’t want them to run at the same time, because there is data in the cache DB,...
1
vote
1answer
965 views

NLB/DFS between servers at different locations?

I currently run a web application on a single VPS but have the need to make it redundant so that the website will not become unavailable in case the server goes down for any reason. I have found that ...
1
vote
1answer
981 views

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 ...
1
vote
2answers
2k views

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, ...
0
votes
0answers
338 views

Two NLB mutlicast clusters on the same VLAN processing same traffic

I have an older ISA2006 based NLB cluster which I plan to migrate to a new TMG2010 NLB cluster. I need to have both clusters active for some time during migration (with different IPs of course). Both ...
2
votes
1answer
1k views

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 ...
0
votes
1answer
557 views

NLB - Stop IIS Site 1 - Will it now alway go to IIS Site 2?

With Windows Network Load Balancer (nlb) if I turn OFF a single IIS Site on Box 1 Will traffic be automatically redirected to the same corresponding site on Box 2? Thanks
1
vote
1answer
95 views

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 ...
2
votes
1answer
682 views

Setting up NLB in a VLAN

I have a network layout like this (ESXi hosts): Internal Network + +-----------------+ ...