Load balancing deal with the techniques involved on using multiple systems to deal with high demands, balancing the load between those multiple systems. Questions deal with networking and server load balancing, using dedicated hardware or not.

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1answer
95 views

Procedure for GoDaddy and AWS Route53

My boss host a domain e.g. example.com in GoDaddy. (I do not have access to GoDaddy this case) In AWS, I want to setup a load-balancer (ELB) and point to 2 EC2 servers. Unfortunately, I can't setup "...
1
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2answers
38 views

Using a load balancer in front of many sites

Is there any reason not to use a software load balancer / proxy in front of many small websites for admin purposes. I work for a web design agency where we have maybe 30-40 small to medium websites ...
0
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1answer
63 views

Haproxy rules(set-header) not working and it's not changing base url of request

I am trying to integrate cloud foundry adminui application. Url which I access is https://myexample.com/adminui/ It works as follows: Request https://myexample.com/adminui/ Response ...
1
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1answer
273 views

Nginx reverse proxy causing file downloads to take excessive time to start

Overview My web app allows users to upload files which are stored on s3 via my servers. When a user requests a file my web server retrieves it from s3 then sends it on to the client. I recently ...
0
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1answer
59 views

LVS/IP_VS LoadBalancing Gateway [closed]

I'm trying to setup my 2-gateway configuration with loadbalacing with IP_VS kernel module. I need to loadbalance forwarding traffic to 2 nodes. I do: Setup ip_vs fwmark service and add 2nodes. On ...
0
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0answers
41 views

Amazon AWS load balancer sending me to wrong instances

I'm very new to AWS, and am trying to forward internet-facing traffic to two EC2 instances that are up and running with a load balancer. I already have one LB running (let's call it the "first" LB) ...
0
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0answers
25 views

MySQL Cluster: Too Many Connections

We have our java application directly connected to the MySQL cluster (NDB engine) with 1 SQL Node. We also have another SQL node. We had a requirement to load balance our 2 SQL Nodes with the physical ...
0
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0answers
50 views

iptables (nth) load balance, connect failed: Connection refused when many request

I try to use iptables as load-balancer using round robin scheduling. Block Diagram My itables configuration on 172.18.3.190 like this : *nat :PREROUTING ACCEPT [42:7044] :INPUT ACCEPT [26:4290] :...
2
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1answer
21 views

Wordpress - images not syncing in AWS EBS

I think I know the answer, but I'd like to confirm. I've a 2-servers load balancer that's hosting a Wordpress website. When the content managers create new content, specially IMAGES: intermittently ...
0
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0answers
1k views

How to configure each location point to a seprate upstream in nginx

How to configure each location point to a separate upstream in nginx? I need functionality like this. www.mysite.com --> 127.0.0.1:9900 or upstream. www.mysite.com/serviceA --> 127.0.0.1:9901 ...
2
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1answer
123 views

LVS DNS load balancing on machine with only 1 NIC

First of all let me clarify that I am just a software developer not an admin, thus I have some knowledge (let's say a basic understanding of the concepts) regarding networking configuration as well as ...
0
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1answer
16 views

Dns records, and tomcat on loadbalacing

I have 2 Dns servers (Debian) configured using bind9 and a loadbalancer managing 2 tomcat webservers, My question is Should i put dns entries of the 2 tomcat webservers, or i just have to put the ...
3
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4answers
325 views

Load balancing LDAP from a Domain Controller via F5

I know that load balancing or fail over of LDAP on a Windows domain controller is generally not a good idea due to the Kerberos and SPN issues. BUT, I have lots of non-windows applications that use ...
1
vote
1answer
36 views

How to load balance application on AWS

I have bit understanding about AWS but not the full picture. If anyone can fill my gaps that will be good. Suppose i have Web Application A, Using Amazon RDS B . I have queue in database so that all ...
0
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0answers
32 views

Using apache mod_proxy balancer, is it possbile to only proxy GET requests?

I have the configuration of a virtual host like the following: ProxyRequests Off ProxyPreserveHost On ProxyPass /content/ balancer://nhosts nocanon ProxyPassReverse /content/ balancer://...
1
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0answers
43 views

Apache Load Balancer - URL Redirect to internal IP

I am trying to setup a simple Loadbalancer in Apache as below My single node Load balancer is on internal IP 192.168.1.3 with this configuration <VirtualHost *:80> ...
0
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0answers
52 views

HAProxy by Subdomain and HAProxy by Subdomain + URI

I've found several posts on this site and other stack sites and among others and Binging and Googling, however, none of them really seem to work for me. Little bit about what I do: I build websites. ...
2
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3answers
135 views

How to make HAProxy wait for successful health check before bringing server out of maintenance mode

I am using HAProxy socket communication to put my backend into maintenance mode before bringing the web server down for maintenance via this command: echo "disable server cluster-01/app-01-4" | sudo ...
0
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0answers
14 views

Is there a way to ensure affinity and exclusivity for hosts in an nginx load balance group

Is there a way to ensure that in a group of three servers, only exactly one will take traffic at any time? I see that there's a "backup" directive: http://nginx.org/en/docs/http/...
0
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1answer
15 views

Wanting Cifs / Samba to restamp times with server-time for “mv” commands

Short background I have built a small cluster of linux machines and been creating and running scripts for distributed computing. After having gotten some basic things up and running now I'm tuning ...
0
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0answers
59 views

setting up ssl on amazon ec2 linux instance

I have been struggling to setup ssl on my amazon ec2 server from 2 days. I have gone to aws docs for setting it up. I have generated private key and csr and got ssl certificate from www.ssl.com. I ...
1
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1answer
126 views

haproxy - Route Request and keep same base URL

I'm new to haproxy and I'm struggling a little bit trying to configure it. What I want: Type in the browser: proxy.company.com/Test/App Have haproxy balance the request between webapp01.company....
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1answer
30 views

Load balancer requirements [closed]

I have got two dedicated servers with apache installed as their webserver. How can I implement load balancing on my servers in a way that if a a server is out of service or has a problem the other one ...
0
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1answer
62 views

Can I use PowerDNS as a HTTP Load Balancer?

I would like to serve multiple web applications and make them available via domain names inside of a test network. Therefore I would like to to use PowerDNS because it seems to have a good API. The ...
0
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0answers
149 views

Nginx-rtmp-module How edge nodes pull streams from multi Master nodes

I have one master ingest server and multiple edge nodes that each pull from the ingest server. But now i have 10000 cameras push streams to master ingest server , i m afraid it can't handle it. So i ...
0
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0answers
40 views

MS SQL - HA & load balancing best solution for servers at different geo-location

Customers has App server (MS Server 2012) and Storage server (MS SQL 2012), with several hundred clients accessing server app via VPN. Now they want to have a high-availability and also load ...
0
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1answer
51 views

HAProxy load balancing issue

I have the following configurations for load balancing a precona cluster. haproxy.cfg global log 127.0.0.1 local1 notice maxconn 4096 user haproxy group haproxy ...
0
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0answers
48 views

HP Proliant and Cisco 3560G LACP - Up Sngl-port-Bndl Mstr Not-in-Bndl

I have to connect two GigaEthernet ports to get 2Gbps. I´m trying to connect a switch 3560G to a HPProliant DL 380G6 to give 2Gbps to the server through the switch. I use LACP in switch in this way: ...
0
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0answers
94 views

keepalived + nginx failover not working

I have 2 servers under Centos 7.1. Both are configured with keepalived (one MASTER / one SLAVE) and Nginx as proxy reverse and load balancing. Everything works great except the Nginx shutdown ...
0
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1answer
159 views

NGINX error when using external PHP-FPM

I am currently trying to setup an 3 servers, 1 for nginx and 2 for php-fpm. the nginx server also have php-fpm since i tested if everything works well. while using upstream php-external{ server ...
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votes
1answer
25 views

How does Apache Load balancing work if DNS Caching is involved?

Assuming the simple scenario of an Intranet with lot of users, there will be a DNS Server which translates IP address for the end user system. Now you also have a yourapp.intranet that is deployed ...
0
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0answers
30 views

Load balancing server affinity to specific destination

I need organize load balancing for following application. I have instances of service A and service B running on one application server 1 and copy of these services running on app server 2. Services B ...
1
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1answer
36 views

AZURE Internal Load Balancer: response same VM in CS

I have two Windows VMs on which run two identical services. Service1 on port 80 and service2 on port 8080. These two VMs are in the same cloud service. I configured an internal load balancer between ...
0
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2answers
37 views

NGINX: using multiple node as load balancer

I have application deployed on tomcat server on machine A,B,C,D I want to load balance using the Nginx using two load balancer nodes LB1 & LB2. All documents talks about using single node as ...
1
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1answer
397 views

Marathon containers load balanced with Haproxy and consul return random 503 requests

Currenty the architecture is organised like this: 192.168.1.10, 192.168.1.11, 192.168.1.12 - mesos master with marathon and consul server 192.168.1.21, 192.168.1.22, 192.168.1.23 - three mesos ...
2
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3answers
210 views

SSL Certificate on Load balancer or server

I have a load balancer distributing traffic between two servers, the public facing urls are all https prefixed. I want to generate a wildcard ssl certificate but I am not sure if is better to place ...
0
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2answers
143 views

How to replicate files between two separate apache machines in bidirectional

How to replicate /var/www/html/ between two separate machines which has separate hard disk storage running Apache web servers. I was planning to setup load balancing between these two Apache servers ...
0
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1answer
69 views

Keepalived - Keep VIP after stop in both nodes

There's any way to keep the last VIP configuration in the case of a daemon stop in all the nodes of Keepalived? Thanks in advance.
3
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3answers
119 views

Is HAProxy still necessary when Varnish can act as a load balancer?

I would like to load-balance my application servers, as well as cache the responses from them. I've read an article dating back to 2012 on HAProxy's website, that was supposed to clear the confusion ...
0
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1answer
96 views

HAProxy not recognizing host headers?

I have been trying to configure HAProxy to send traffic to different backend servers based on hostnames. I tried using the directions found in How to divert traffic based on hostname using HAProxy? ...
0
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0answers
68 views

HAProxy http_req_rate limit doesn't kick in

I'm trying to setup a rate limit on my HAProxy frontend, to prevent more than X requests to be sent to the backend in a specific time frame. As an example I want to limit to 1 request every 10 ...
0
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0answers
46 views

NGINX load balance via client subnet

I have 3 frontends with web application in different subnets. I want to use nginx as load balancer, but I want balance clients via client subnet. For example: frontend1 - 1.1.1.10 frontend2 - 1.2....
0
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0answers
131 views

Load balancer F5 and sticky session

I have installed a web application on a clustered environment where the load is balanced by an F5 device. Unfortunately I do not know exactly its model, but hopefully this information is not necessary ...
1
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1answer
49 views

google load balancing external ip

I am trying to setup Google Compute Load Balancer to HTTP content route between my Google Compute Machines and my appEngine application, depending on the URL. I can get everything setup but it ...
0
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2answers
102 views

How to use multiple ip addresses on one subdomain?

I have multiple FTP servers, which users can connect and upload files. Because I always add more servers and sometimes the servers get full, I want to have a subdomain ftp.mysite.com, that will point ...
0
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0answers
46 views

Understanding AWS ELB, multiple ELB per subnet or one ELB per subnet?

So I'm trying to setup a production site and I'm new to the devops world. I have a setup that consists of four components: 1) Node.js API Server 2) Memcached Elasticache cluster 3) Postgresql RDS 4) ...
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2answers
309 views

Must I bind haproxy to port 22 to load balance ssh/sftp

I need to use haproxy to load-balance SFTP connections but currently i cannot bind it to port 22 (cutomer constraint). Can i bind to port xxx and listen on port 22 to achieve this or must I bind to 22?...
0
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1answer
154 views

Load balancing between two (or more) GRE tunnels

I have a hosted service (think zScaler™) that is having me send my traffic to it via GRE tunnels. I am given two appliances and want to load balance my traffic between the two tunnels. I could ...
0
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0answers
45 views

Using MX records for load balancing on *outgoing* email: bad practice?

I operate a Rails application (a Discourse forum) that needs to send out email. My sysadmin told me I shouldn't use a specific outgoing mailserver, but rather specify my domain and have my app lookup ...
0
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0answers
106 views

pfSense Load Balancing sticky connection timeout

In pfSense 2 under Settings > Advanced > Miscellaneous there is an option to enable sticky connections for the Load Balancing. If you enable the use of sticky connections you can define the source ...