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Backend server selection based on cookies priorities.

I am using haproxy 1.6.5 on debian 8.3. I have 4 backend servers. They all do the same thing but diveded to 2 clusters. It is desired to keep session within 1 cluster even if one of the servers in ...
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20 views

HAproxy ssl re-encryption and http header modification

I want to use my Haproxy 1.6.5 as Https load balancer before my https servers but I stuck with a problem of misunderstanding . I want this behaviour: haproxy is available as https://example.com but ...
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1answer
58 views

Simple redirect to HAproxy backend servers

I want to configure simple redirect with HAproxy. Desired behaviour: HAProxy receives request to example.com or https://example.com and returns https webserver start page from servers list excluding ...
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1answer
503 views

Varnish with separate backends and multiple domains on each backend

I'm using 3 nginx servers with multiple domains(sites) on each. Each server contains multiple Wordpress sites. Is it possible to configure Varnish and use separate backends (different IP's) and each ...
0
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1answer
45 views

Use WAN as internal network

Suppose I have a little web infrastructure for serving clients that contains nginx as a frontend server, couple of backends (upstreams), a messaging system, db and so on. This stuff is located on ...
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1answer
2k views

HAProxy + keepalived + multiple backend farms / virtual IP addresses

we have several backend farms (HTTP, FTP, etc), basically one farm for each customer, and I am about to rebuild our load balancing infrastructure, moving from Piranha to HAProxy. Since we are using ...
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1answer
567 views

Add extra zones outside the MySQL database

In need of a MySQL backend for my DNS server, I have decided to switch from Bind to PowerDNS, the MySQL backend of which is slightly more convenient. Basically : users add domains to my database ...
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1answer
894 views

varnish backend conn. failure

using: varnish-3.0.4 can anyone suggest potential cause of backend connection failure, this normally happens when N-Worker_thread goes anything above default of 100 worker_thread(not necessarily all ...
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1answer
508 views

Is there a reverse proxy that can make SPDY connections to a back-end?

...other than spdylay in --spdy-relay mode? We've got a situation where a reverse-proxy has to talk SSL to a Tomcat server, and I'd love to test the performance boost of SPDY. Apache and Nginx both ...
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0answers
281 views

Apache as Load balancer - forcing a break in persistent connection

I have setup a load balancer with Apache 2.2 via mod_proxy and mod_proxy_balancer. The load balancing works just fine, but there is one case I cannot find any configuration options for, namely, while ...
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2answers
167 views

load balancing and port speed/bandwidth

help me understand something about load balancing. Let's pretend we have one server as frontend and three servers as backend. All are hosted in the same datacenter using a local connectivity. ...
2
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1answer
3k views

nginx : backend https, proxy_pass shows ip

I am using nginx as a reverse proxy listening at port 80 (http). I am using proxy_pass to forward requests to backend http and https servers. Everything works fine for my http server but when I try to ...
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1answer
232 views

customizable web email client backend

I have a comprehensive internal web site for my company, which handles a lot of crm functions as well as other customized functions. I am trying to integrate all needed aspects into this, and am ...
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1answer
2k views

Proxy to “backend” service whenever a file does not exists

I'm using NGINX to serve static file. Whenever a file does not exist, I want NGINX to hit a nodejs backend service that will try to asynchronously retrieve that file. The backend service needs 3 ...
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1answer
253 views

Nginx and Frog CMS admin url

Short background - there is a site (powered by Frog CMS) hosted on VPS with Apache installed. To cut costs a bit, I've moved to another VPS hosting with cheaper plan. I've installed nginx, php-cgi ...
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4answers
2k views

Varnish / Apache redirecting to backend port 8080

I'm running Varnish 2 with Apache backend at 8080 on the same machine. Everything is working fine, except one problem: Sometimes Apache(?) is redirecting to backend port :8080 especially when I'm ...
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1answer
731 views

Uknown nginx Error Messages

I am getting some nginx errors as I can see them in my error.log which I am unable to understand. They look like: ERRORS: 2011/03/13 21:48:21 [crit] 14555#0: *323314343 open() "/usr/local/nginx/...
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4answers
2k views

Suggestions for VPN solution between backend servers

I am using a rackspace cloud environment to host a server farm. The problem i've run into is that Rackspace shares all internal network traffic on a single subnet (or rather, all the servers in what ...