Questions tagged [load-balancer]

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Load Balance Multiple ISP connection

I am planning to setup a home network with multiple GBPS connections. Currently have 2x GBPS connections which have their own independent router and network. What I am planning to do is buying a '...
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31 views

Load balancer at home with 2 ISP

I have 2 floor house and 2 ISPs. One is via wireless and the secondary is LTE. One router can only go on the first floor, as the Wifi connection antenna end is placed there, and second (LTE) can be ...
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4 views

Obtain the client source IP over an HTTPS communication with a ONE Armed Load balancer

I have 4 linux application servers that are load balanced in One Arm mode over a HTTPS communication. There is the need to keep track of the source IP of the client invoking one of the servers through ...
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1answer
27 views

GCP won't provision SSL certs for Load Balancer w/ HTTPS redirect

If I have 2 ip addresses in the A record to enable the http->https redirect, the cert provisioner can't seem to see find it. Checking the DNS propagation seems okay. What would be happening here? ...
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15 views

How to serve couple domains with differents ports and apps trough single public IP to VM as backend on same host

I have a bare-metal host with 8 cores and 64 GB RAM, 4To HDD on RAID 1 with a single public IP. I was thinking to share this huge rig with a couple of VMs so can run different services and OS in each ...
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57 views

How do I set DNS round-robin traffic percentage with bind9?

bind9 allows you to configure DNS round-robin to multiple different IPs like: server A 10.10.10.1 server A 10.10.10.2 And it'll return 50%/50% approximate. However, I need it to return, for example, ...
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12 views

Hardware load balancer to local public IP not accessible

I have a small network, where I have TP-Link TL-ER5120 load balancer installed for maintaining the internet connection. Here is how my network looks like: The problem: I have a web server setup at ...
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1answer
268 views

Cannot connect to FTP server behind AWS loadbalancer

I have configured AWS EC2 instance to be a FTP servers(Passive Mode) and attached a Load balancer target group to the instances. The loadbalancer listener port is 21. The problem I face is the my ...
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72 views

cannot ping or nslookup with dnsdist running DoH?

I installed dnsdist on ubuntu 20.04 running on vm with below config: addLocal('0.0.0.0:8053', {doTCP=true, reusePort=true, tcpFastOpenSize=0}) -- Define upstream DNS server (Pi-hole) newServer({...
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64 views

How to test and optimise with a Load Balancer on network?

I am having connection speed issues, and I think it is within my network. Connecting directly to the Modems attached to the WAN ports show high speed internet 47 Mbps Connecting to the Wifi AP (...
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154 views

How is load balancing not a bottleneck?

I've read a lot about how Nginx can be used as a load-balancer, and while there are plenty of other software options to use instead of nginx, isn't the concept of a load-balancer itself a bottleneck ...
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10 views

Connecting to ec2 instance after creating a Load balancer

How do I connect to an ec2 instance after creating a load balancer ? I have the below configuration set up: Two RHEL 8 ec2 instances Both the instances are inside a VPC but in two availability zones. ...
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1answer
47 views

Http Request after passing through firewall and loadbalancer

I have a Firewall, then a LoadBalancer (IIS-ARR load balancer) and 2 IIS webservers. The 2 IIS web servers will be in LAN with private IPs. My website is hosted on both the webservers. My actual ...
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1answer
101 views

Windows IIS load balancer works with MAC binded IP?

Will windows IIS-ARR load balancer work with MAC binded IP or it is mandatory to have Virtual IP for the ARR load balancing Server. I am referring to this ARR https://docs.microsoft.com/en-us/iis/...
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2answers
4k views

Can I use two different internet connections for more speed in Windows 10?

Same as Can I use two different internet connections for more speed? except for Windows 10. Is there anything preventing us from creating a means to use two different internet connections, like two ...
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15 views

Wake On Demand (Load Balanced Solutions ?)

I'm out of idea facing a challenging situation : Wake up a server on demand. The problem Wake-up a physical server that listen on specific port, when an incoming packet arrives. There may be a ...
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16 views

CNAME for main website, to load balancer?

We are wanting to use an AWS provided load balancer for our main website. The issue we are running into is that it appears to want us to refer to it by CNAME, which seems to cause problems in the ...
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2answers
104 views

Load balancing with Nginx: POST requests are not forwarded to the next upstream server when the current is down

I'm using Nginx as a load balancer between two webservers. I noticed that, when one of the two webservers is down, GET requests are well forwarded to the second one, while POST are not: Here is the ...
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1answer
439 views

Haproxy load balancer does not work from centos7

I am trying to set up HAproxy load balancer on centos 7, however I am unable to get it working. From services it sais that it is running, but the stats page wont open and also it does not direct to ...
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13 views

How to create LB on AWS that does not target port 80

I have an ubuntu instance with a process listening on port 3000, exposed via security group and all that. When I create an LB and a respective target group, and port 3000 for this TG, the UI will ...
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27 views

Apache2 load balancing with 2 balancer nodes

I am trying to set up a simple load balancer with Apache2. Here is the configuration that I have made ProxyPass /myapp balancer://mycluster ProxyPassReverse /myapp balancer://mycluster ...
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1answer
1k views

HAPROXY configuration for DSR

I have to do load balancing in TCP mode using HAproxy. The backend application needs to use the client source IP. The only solution I found over the internet is configuring haproxy in DSR mode. I ...
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1answer
32 views

SSL / TLS on EC2 load balancer - why does it work?

My boss says to get SSL / TLS working on EC2 servers, just put a load balancer in front of them that uses https. But I can still access the original servers with http. So is this really secure? Doesn'...
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1answer
296 views

How can I configure SSL certificates on Digital Ocean server to host ReactJS app connecting to GoLang server on the same Droplet?

I am hosting a chess application website on a Digital Ocean Droplet. On the server, I am serving up a static React app using pm2. I am also running a GoLang server with a single Websocket endpoint ...
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2answers
502 views

How can I link AWS SSL to AWS Wordpress

I have created an EC2 instance for WordPress on AWS. My domain, its hosted zone, and SSL certificate all run on AWS. Can you guys please help me to connect my domain with SSL certificate? Really ...
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1answer
1k views

Enable HTTPS on Amazon AWS for EC2, without cloudfront or load balancer

I have my ec2 instance running on HTTP on my domain. I have created a certificate using AWS certificate manager. It is issued, but not in use. Like in the image here (if it matters it was used DNS ...
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1answer
186 views

Is it possible to configure Apache to be both a static web server and a load balancer on the same port?

I am using Apache 2.4.7 on a Windows 2016 Server as a load balancer between a couple of Spring Boot REST applications using <VirtualHost *:8000> section. This is working fine. However, I have ...
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9 views

ARR is striping of Authentication Type: x509 header when used as a Load Balancer

I am using ARR as a Load Balancer between my API Server and API Clients. My API Clients use CMS Authentication for communicating with the API Server. When I introduce ARR in between by API Client and ...
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1answer
890 views

Do responses from server have to go through load balancer or directly to client?

I am trying to build my own load balancer on C++. But not sure whether all packets(both requests and responses) between client and server have to go through load balancer. Should it just help ...
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55 views

Nginx as a Load balance while login to application its saying invalid user id/password

I have configured nginx successfully. When I made a load balance with my two application servers (spring boot), when my application opens with the load balance IP, the application asks for a userid ...
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8 views

Load Balancer Poor External Query Results in Benchmark

I created a Load Balancer. When testing internally in the Load Balancer Server using wrk, I received a benchmark of 300,000 Requests Per Second.. Then, I created a droplet in Digital Ocean and ran the ...
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3answers
9k views

can't access website by ip but I can access by fully qualified domain

So it seems I can't browse a website by IP, but I can browse using it's hostname. C:\Users\c>nslookup www.example.com Non-authoritative answer: Name: cx-cdn-bre.gss.consultix.net Addresses: 62....
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1answer
2k views

Using two ISP connections simultaneously to add stability in Linux

I have two internet connection from two different ISP. ADSL on eth0 and 4G on wlan0. Is there any way that if one ISP fails, the other take over automatically without a physical router and by Host OS (...
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1answer
1k views

How do I safely sync data between two EC2 instances on the same ELB?

I have two ec2 instances on a load balancer, I would want to be able to make one the source and the other a mirror. Where the source is the instance that is always updated, and the mirror updates ...
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221 views

Request stuck in one node behind Apache HTTP Server

I'm running an Apache HTTP Server as a load balancer, with 3 application nodes sitting behind it. Here is a sample configuration, <Proxy "balancer://apicluster"> BalancerMember http:...
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2answers
75 views

What is installed on “load-balanced” servers

The question I have is very basic, I understand what load balancing is and how it works, however I can't visualize it in practice. Lets say I have an AMP application running on a server. One day ...
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3answers
2k views

Tp link TL-ER604W v1.0 locks up every 10 days or so

I have had some issues with two different TP-Link load balancing routers. The older one which had 4 WAN ports would lock up and require a reboot every week. I upgraded and bought the newer TL-ER604W ...
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351 views

Mount shared SAN storage on one machine as read/write but read-only on others

I am writng a golang web application that will allow users to upload files and later retrieve them. Application is divided in two parts Part-1: Web-portal, it will be hosted on multiple linux web-...
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48 views

Setting up a commercial wireless network that supports numerous medium-high bandwidth users?

How would you configure a wireless network that needs to provide a decent-speed internet connection to a room full of users? Imagine a hypothetical establishment, maybe it's a large coffee shop or a ...
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3answers
642 views

How do I know if a connection goes down in a load balancing router?

I am using a TL-R470T+ load balancing router to combine my two broadband connections. Is there a way I can know as soon as one of the broadband lines goes down? My approach so far: I have tried to ...
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2answers
3k views

Two Internet Connections - One LAN (Load Balancing?)

If we have two different Internet Connections (one is substantially faster than the other), is there any way to connect both to the LAN, using some kind of load balancing to utilize both connections. ...
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1answer
178 views

Move from keepalived to HAProxy

I have four web server under two keepalived load balance server, so I can be sure that the active keepalived server will load balance the traffic on my four web servers, and when it fails the passive ...
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1answer
9k views

DNS load balancing with multiple IPs on the same domain in GoDaddy

Looking for a cheaper solution than amazon CloudFront, I placed two "A" records with different IPs to different servers on the same subdomain in a NameSever managed by GoDaddy in order to achieve some ...
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1answer
2k views

Load Balanced SFTP Server

we have 2 Load Balanced web servers on Azure and I am trying to set up a load balanced SFTP connection for my client. I have tried doing this using a load balanced end-point on azure for SFTP but the ...
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1answer
4k views

Mapping multiple IP Addresses to one DNS record

We are wanting to run 2 separate servers, one legacy server and one new server. All new users will be put onto the new server and current users will be left on the legacy server for now. We want to ...
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115 views

Session-based load-balancing with nginx and nodejs?

As I understand it, load-balancing with nginx is typically based on requests, i.e. each request is forwarded somewhere different, be it to remote machines or to instances of a local service. However, ...
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1answer
2k views

What happens if a switch loses too many packets consistently?

I was just wondering what happens if a switch loses too many packets. The reason I am asking is because I have a switch that is constantly overloaded. This is caused by individuals downloading heavy ...
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1answer
440 views

How to password protect my webpage of 1 instance in ELB?

I have launched 2 instances with basic html page on AWS. And added those instances with one external ELB. I made the configurations like, only i can access those webpage by hitting the ELB and not by ...
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1answer
2k views

Can I facilitate Nginx to multiplex an Icecast stream?

The headline basically says it, I have Nginx connect as a reverse proxy to one of my Icecast2 streams. Now it would be nice if, for every new connection to Nginx, it would not proxy a new connection ...
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2k views

Bonding/Teaming in centOS 7

I am new to linux. I have been trying to configure either NIC bonding or NIC teaming. I have done it on windows server 2012. I am using centos7 and I haven't been lucky enough to configure it ...