After a release we started getting competely random ERR_SPDY_PROTOCOL_ERROR in our production application. When we get it we refresh the browser a few times and the error goes away. We can't really...

Due to some legacy application that relies on Host header to function correctly, I need to have an Ingress (proxy, etc) that capable of rewrite Host header and pass that to downstream (backend). Is...

My current setup has 2 HAProxies configured with keepalived for High Availability, the 2 proxies serve as a Reverse Proxy and Load Balancer for virtual webservices. I know that HAProxy can check th...

I am looking for a service proxy (or load-balancer) with URL-based affinity. This is for using in Kubernetes, inside the cluster: I am looking for an "internal" load balancer, I don't need to expo...

What is the difference between Nginx ingress controller and HAProxy load balancer in kubernetes?

I am trying to load Lua script from HAProxy. In the Lua script, the following line is causing an error: local http = require("socket.http") Intially I gathered from journalctl -xe output that th...

I need to send (duplicate) traffic from one machine (port) and to two different machines (ports). I need to take care of TCP session as well. In the beginnig I used em-proxy, but it seems to me th...

Very new to haproxy and loving it, apart from a 504 issue that we're getting. The relevant log output is: Jun 21 13:52:06 localhost haproxy[1431]: 192.168.0.2:51435 [21/Jun/2017:13:50:26.740] www-...

I need nested ACL conditions acl route1 hdr_sub(host) -i abc.com hdr_sub(host) -i xyz.com acl route2 path_beg /m1 acl route3 path_beg /m2 use backend back1 if route1 (route2 or route3) // ess...

I have implemented a server and client with Google's gRPC toolkit. While testing, I noticed that there was never more than a single TCP connection from the client to the server, regardless of how m...

I am using HA proxy version 1.6.6 for load balancing rabbitmq server, and it works fine but i want to add server dynamically in ha proxy backend in ubuntu using script. can anyone please tell me ho...

I am using HAProxy as a load balancer & i have a lua script which returns the backend name to haproxy.cfg. Wanted to implement rate limiting for my application. I know that we can use sticky t...

I have a simple condition in my HAproxy config (I tried this for frontend and backend): acl no_index_url path_end .pdf .doc .xls .docx .xlsx rspadd X-Robots-Tag:\ noindex if no_index_url It shou...

I have setup a HAProxy in front of my backend server application to enable HTTPS. I have read that I need to set X-Forward-Proto https. In the haproxy.cfg file I have tried to do that in the front...

Is there a way to utilize use_backend with an ACL match, but, in the case the backend is unavailable (down,maint,etc), then use the default? For example: # Define hosts acl host_bacon hdr(host...

I have java client which talks to 3rd party service through HA Proxy. 3rd party service was recently changed, so now it is returning 302(Moved Temporarily) instead of 200(Ok) which causes failure o...

I'm very sure this problem has been solved, but I can't find any information anywhere about it... How do sysadmins programmatically add a new node to an existing and running load balancer ? Let's ...

We'd like to track request queue times, and as per https://docs.newrelic.com/docs/apm/other-features/request-queueing/configuring-request-queue-reporting, we need to add X-Request-Start or X-Queue-...

In HAProxy, I've used option http-proxy to make it work like forward proxy. This seems to be working fine, but for HTTPS traffic that's not possible. So, is there any option in the HAProxy config...

I have some issue with Aquarium and splash. They stop working after 30 minutes after the start. A number of pages for loading are 50K-80K. I made cron job for automatically rebooting every 10 minut...

I have configured HAProxy (1.5.4, but I tried also 1.5.14) to balance in TCP mode two server exposing AMQP protocol (WSO2 Message Broker) on 5672 port. The clients create and use permanent connecti...

I am using Ratchet (http://socketo.me/) for websockets in my PHP application. I have multiple virtual machines running the application and each of these machines also host the websocket service. Re...

I need to integrate several web applications on-premise and off-site under a common internally hosted URL. The on-premise applications are in the same data center as the haproxy, but the off-site a...

I'm unable to use System.Net.WebRequest for a request with TLS 1.2. If I do so, I get an Exception The request was aborted: Could not create SSL/TLS secure channel. and the protocol error Handshake...

I'm writing lua script that is going to run inside HAproxy using it's Lua API. My script is using socket package which I want to install on my machine. Currently I'm running inside docker and my ...