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Questions tagged [haproxy]

HAProxy is an open source, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is particularly suited for web sites crawling under very high loads while needing persistence or Layer7 processing.

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2099 questions
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How to add custom header containing the absolute address of the originally requested resource

I have the following setup: |-------|--- backend1:8080 example.com:80---|HAProxy|--- backend2:8080 |-------|--- backend3:8080 I would like to configure the HAProxy to add a custom header containing the original…
Darin Dimitrov
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HAproxy 503 Service Unavailable No server is available to handle this request

I'm new to this load balancing scenario and I'm being tasked to figure out how to make this load balancing works. My environment: Centos 6.4 64 Bit Webserver: Lighttpd All running in ESXI virtual IP: 192.168.1.6 LB1: 192.168.1.4 LB2:…
Le Dude
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haproxy - pass original / remote ip in tcp mode

I've got haproxy set up with keepalived for load balancing and ip failover of a percona cluster, and since it works great I'd like to use the same lb / failover for another service/daemon. I've configured haproxy this way: listen my_service…
Vito Botta
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hardware recommendations for HAProxy for a small or medium traffic site

I am interested in setting up HAProxy for use as a load balancer for a set of small traffic web applications. The use is growing and might become medium sized in the near term (6 months or so). Mainly we are looking balance load becuase some…
MikeJ
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Load Balancing DNS Servers: UDP / TCP

I have been asked to rebuild our load balancing infrastructure in the data center. The original request was to load balance FTP servers. I tried doing that using the current load balancer (Piranha / LVS), but didn't get it up and running. Not just…
Mosh Pit
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HAProxy with SNI and different SSL Settings

I have HAProxy for my two sites, one of them public and one private. www.mysite.com private.mysite.com Atm, I'm using haproxy like this: frontend mysite_https bind *.443 ssl crt /etc/mycert.pem ca-file /etc/myca.pem verify optional no-sslv3 mode…
mohrphium
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Will this HAProxy "restart script" work as gracefully I think it will?

I put this script together from various places. What I am hoping is that it will do the following once run: Pause all "NEW" http traffic for ports 80 and 443 - just "pause" them, don't give any error gracefully restart haproxy when all "in process"…
Kladskull
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Hostnames in HAProxy configuration file

My haproxy.cfg file has two backend servers using hostnames: server ops-ca-revealv2e-prod-1 ops-ca-revealv2e-prod-1:443 cookie ops-ca-revealv2e-prod-1 ssl weight 1 maxconn 512 check server ops-ca-revealv2e-prod-2 ops-ca-revealv2e-prod-2:443 cookie…
Naijaba
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HAProxy health checks: using httpchk and observe?

I'm using HAProxy 1.4.18 with the following backend configuration backend staging option httpchk HEAD /check.txt HTTP/1.0 http-check disable-on-404 default-server error-limit 1 on-error mark-down server staging01 x.x.x.x:80 check observe…
ouranos
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haproxy + stunnel + keep-alive?

I'd like to put stunnel in front of haproxy 1.4 to handle HTTPS traffic. I also need stunnel to add the X-Forwarded-For header. This can be achieved by the "stunnel-4.xx-xforwarded-for.diff" patches from the haproxy website. However, the…
Chris Lercher
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HAProxy roundrobin weights

I'm attempting to modify my current haproxy configuration to favor 1 server over the others (70%,15,15) Does anyone know if this is possible? Reading the docs I see a "weight" option, but I'm a bit weary of messing around with production…
uid_b
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why no examples of horizontally scalable software load balancers balancing ssl?

I have a bunch of questions with respect to ssl, local sessions, and load balancing which seem to be interconnected, so I apologize in advance for the length of this question. I have a website which uses file-based sessions. The nature of the site…
wherestheph
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Configure HAProxy to include host headers for different backends

I am exploring the use of HAProxy as a balancer in front of a set of web apis that run on IIS. node1.myapp.mycompany.com node2.myapp.mycomapny.com We are currently using Host Headers to correctly resolve the right web application on IIS. For…
Matt
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Is there a way to configure HAProxy to send traffic based on a cookie?

When configuring HAProxy, I would like to send traffic to certain servers based on the presence of a cookie. For example: There is a HAProxy server and 2 web servers (serverA and serverB). When someone logs in, a cookie is created…
King
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Haproxy: SSL encrypted backend with self-signed cert

I'm working to configure HAProxy such that it will terminate the SSL so there's only one place to configure the purchased SSL cert. However, I'd prefer that the connection to the backend servers also be encrypted with SSL. One suggestion I found…
Joe J
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