# Acl giving "404 Not Found"

**URL:** <https://discourse.haproxy.org/t/acl-giving-404-not-found/1000>\
**Category:** Help!\
**Created:** [February 8, 2017, 11:28pm UTC](https://discourse.haproxy.org/t/acl-giving-404-not-found/1000 "2017-02-08T23:28:46Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![derangedsudoer](https://avatars.discourse-cdn.com/v4/letter/d/eb8c5e/32.png) [@derangedsudoer](https://discourse.haproxy.org/u/derangedsudoer)\
**Post date:** [February 8, 2017, 11:28pm UTC](https://discourse.haproxy.org/t/acl-giving-404-not-found/1000/1 "2017-02-08T23:28:46Z")

</div>

I am a newb to HAProxy, and am bashing my head against this one. I’m trying to set up what I think is a fairly simple exercise in redirecting a url to a specific port. I’d like for [http://server.example.com/application](http://server.example.com/application) to redirect to [http://server.example.com:8091](http://server.example.com:8091). To that end, I have the following config:

```
global
    daemon
    maxconn 256

defaults
    mode http
    timeout connect 50000ms
    timeout client 50000ms
    timeout server 50000ms

frontend http-in
    bind *:80
    acl application url_end application
    use_backend application_admin if application
    default_backend web

backend application_admin
    server server1 127.0.0.1:8091

backend web
    server server1 127.0.0.1:8080

```

The redirect to 8080 as the default works fine, apache is listening on 8080. But when I go to [server.example.com/application](http://server.example.com/application), I get a 404 error:

```
curl -v server.example.com/application
* Trying server.example.com...
* TCP_NODELAY set
* Connected to server.example.com (server.example.com) port 80 (#0)
> GET /application HTTP/1.1
> Host: server.example.com
> User-Agent: curl/7.51.0
> Accept: */*
>
< HTTP/1.1 404 Object Not Found
< Server: MochiWeb/1.0 (Any of you quaids got a smint?)
< Date: Wed, 08 Feb 2017 23:00:51 GMT
< Content-Type: text/plain
< Content-Length: 10
< Cache-Control: max-age=10
<
* Curl_http_done: called premature == 0
* Connection #0 to host server.example.com left intact
Not found.

```

The port does work, because I can browse directly to [server.example.com:8091](http://server.example.com:8091).

Any help greatly appreciated!

---

<div class="post-metadata">

**Author:** ![derangedsudoer](https://avatars.discourse-cdn.com/v4/letter/d/eb8c5e/32.png) [@derangedsudoer](https://discourse.haproxy.org/u/derangedsudoer)\
**Post date:** [February 9, 2017, 5:32pm UTC](https://discourse.haproxy.org/t/acl-giving-404-not-found/1000/2 "2017-02-09T17:32:07Z")

</div>

Well, I’ve made some progress. I added the following:

`reqrep ^([^\]*\ )/couchbase(.*) \1\ /\2`

To my backend application\_admin above. It is now sort of attempting to do the right thing, but it’s dropping the port in the final url:

```
curl -v server.example.com/application
* About to connect() to server.example.com port 80 (#0)
* Trying server.example.com...
* Connected to server.example.com (server.example.com) port 80 (#0)
> GET /application HTTP/1.1
> User-Agent: curl/7.29.0
> Host: server.example.com
> Accept: */*
>
< HTTP/1.1 301 Moved Permanently
< Server: Application Server
< Pragma: no-cache
< Location: http://server.example.com/ui/index.html
< Date: Thu, 09 Feb 2017 17:22:11 GMT
< Content-Type: text/html
< Content-Length: 234
< Cache-Control: no-cache
<
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"><html><head><title>301 Moved Permanently</title></head><body><h1>Moved Permanently</h1><p>The document has moved <a href="http://server.example.com/ui/index.html>here</a>.</p></body></html>
* Connection #0 to host server.example.com left intact

```

The final url should actually be [http://server.example.com:8091/ui/index.html](http://server.example.com:8091/ui/index.html) like so:

```
curl -v server.example.com:8091
* About to connect() to server.example.com port 8091 (#0)
* Trying server.example.com...
* Connected to server.example.com (server.example.com) port 8091 (#0)
> GET / HTTP/1.1
> User-Agent: curl/7.29.0
> Host: server.example.com:8091
> Accept: */*
>
< HTTP/1.1 301 Moved Permanently
< Server: Application Server
< Pragma: no-cache
< Location: http://server.example.com:8091/ui/index.html
< Date: Thu, 09 Feb 2017 17:27:04 GMT
< Content-Type: text/html
< Content-Length: 239
< Cache-Control: no-cache
<
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"><html><head><title>301 Moved Permanently</title></head><body><h1>Moved Permanently</h1><p>The document has moved <a href="http://server.example.com:8091/ui/index.html>here</a>.</p></body></html>
* Connection #0 to host server.example.com left intact

```

Clearly I’m not understanding the regex well enough, but I’m not sure where I’m going wrong.

---

<div class="post-metadata">

**Author:** ![derangedsudoer](https://avatars.discourse-cdn.com/v4/letter/d/eb8c5e/32.png) [@derangedsudoer](https://discourse.haproxy.org/u/derangedsudoer)\
**Post date:** [February 9, 2017, 10:22pm UTC](https://discourse.haproxy.org/t/acl-giving-404-not-found/1000/3 "2017-02-09T22:22:36Z")

</div>

I ended up going a different direction with this. Instead of using `server` I used `http-request redirect` instead. Works a treat!