Re: HAProxy returning 404

[Baptiste]

I'm seeing more a misconfigured web server whose virtualhost is
sticked to the IP address and which can't route traffic which contains
HAProxy's Virtual IP to the right virtual host ;)

Baptiste

On Mon, Dec 21, 2015 at 7:20 AM, Gaurav Sharma
 wrote:
> Hi Baptiste / Willy ,
>
> Same backend server is working with nginx reverse proxy.
>
> Below is output of haproxy -vv
>
> HA-Proxy version 1.5.11 2015/01/31
> Copyright 2000-2015 Willy Tarreau 
>
> Build options :
>   TARGET  = linux2628
>   CPU = generic
>   CC  = gcc
>   CFLAGS  = -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat
> -Wformat-security -Werror=format-security -D_FORTIFY_SOURCE=2
>   OPTIONS = USE_ZLIB=1 USE_OPENSSL=1 USE_PCRE=1
>
> Default settings :
>   maxconn = 2000, bufsize = 16384, maxrewrite = 8192, maxpollevents = 200
>
> Encrypted password support via crypt(3): yes
> Built with zlib version : 1.2.3.4
> Compression algorithms supported : identity, deflate, gzip
> Built with OpenSSL version : OpenSSL 1.0.1 14 Mar 2012
> Running on OpenSSL version : OpenSSL 1.0.1 14 Mar 2012
> OpenSSL library supports TLS extensions : yes
> OpenSSL library supports SNI : yes
> OpenSSL library supports prefer-server-ciphers : yes
> Built with PCRE version : 8.12 2011-01-15
> PCRE library supports JIT : no (USE_PCRE_JIT not set)
> Built with transparent proxy support using: IP_TRANSPARENT IPV6_TRANSPARENT
> IP_FREEBIND
>
> Available polling systems :
>   epoll : pref=300,  test result OK
>poll : pref=200,  test result OK
>  select : pref=150,  test result OK
> Total: 3 (3 usable), will use epoll.
>
>
>
>
>
> On Mon, Dec 21, 2015 at 3:48 AM, Willy Tarreau  wrote:
>>
>> Hi Baptiste,
>>
>> On Sat, Dec 19, 2015 at 11:18:36PM +0100, Baptiste wrote:
>> > HAProxy can't return a 404. Your web server may be improperly
>> > configured.
>>
>> I'm seeing one possibility (which logs would obviously show), which is
>> that he's using an older version of haproxy which defaults to tunnel
>> mode, and that once the first request is sent to one of the servers,
>> all subsequent ones are send there as well regardless of the content
>> switching rules.
>>
>> Gaurav, please send the output of "haproxy -vv". If your version is
>> older than 1.5 you'll have to add "option http-server-close" or even
>> "option forceclose" in your configuration. The best solution is of
>> course to upgrade it to get one which supports keep-alive.
>>
>> Willy
>>
>
>
>
> --
> Regards,
> Gaurav Sharma,
> Devops Engineer,
> Phone No. : 09582232217
> Ignite World

Re: HAProxy returning 404

[Gaurav Sharma]

Hi Baptiste / Willy ,

Same backend server is working with nginx reverse proxy.

Below is output of haproxy -vv

HA-Proxy version 1.5.11 2015/01/31
Copyright 2000-2015 Willy Tarreau 

Build options :
  TARGET  = linux2628
  CPU = generic
  CC  = gcc
  CFLAGS  = -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat
-Wformat-security -Werror=format-security -D_FORTIFY_SOURCE=2
  OPTIONS = USE_ZLIB=1 USE_OPENSSL=1 USE_PCRE=1

Default settings :
  maxconn = 2000, bufsize = 16384, maxrewrite = 8192, maxpollevents = 200

Encrypted password support via crypt(3): yes
Built with zlib version : 1.2.3.4
Compression algorithms supported : identity, deflate, gzip
Built with OpenSSL version : OpenSSL 1.0.1 14 Mar 2012
Running on OpenSSL version : OpenSSL 1.0.1 14 Mar 2012
OpenSSL library supports TLS extensions : yes
OpenSSL library supports SNI : yes
OpenSSL library supports prefer-server-ciphers : yes
Built with PCRE version : 8.12 2011-01-15
PCRE library supports JIT : no (USE_PCRE_JIT not set)
Built with transparent proxy support using: IP_TRANSPARENT IPV6_TRANSPARENT
IP_FREEBIND

Available polling systems :
  epoll : pref=300,  test result OK
   poll : pref=200,  test result OK
 select : pref=150,  test result OK
Total: 3 (3 usable), will use epoll.





On Mon, Dec 21, 2015 at 3:48 AM, Willy Tarreau  wrote:

> Hi Baptiste,
>
> On Sat, Dec 19, 2015 at 11:18:36PM +0100, Baptiste wrote:
> > HAProxy can't return a 404. Your web server may be improperly configured.
>
> I'm seeing one possibility (which logs would obviously show), which is
> that he's using an older version of haproxy which defaults to tunnel
> mode, and that once the first request is sent to one of the servers,
> all subsequent ones are send there as well regardless of the content
> switching rules.
>
> Gaurav, please send the output of "haproxy -vv". If your version is
> older than 1.5 you'll have to add "option http-server-close" or even
> "option forceclose" in your configuration. The best solution is of
> course to upgrade it to get one which supports keep-alive.
>
> Willy
>
>


-- 
Regards,
Gaurav Sharma,
Devops Engineer,
Phone No. : 09582232217
Ignite World

Re: HAProxy returning 404

[Willy Tarreau]

Hi Baptiste,

On Sat, Dec 19, 2015 at 11:18:36PM +0100, Baptiste wrote:
> HAProxy can't return a 404. Your web server may be improperly configured.

I'm seeing one possibility (which logs would obviously show), which is
that he's using an older version of haproxy which defaults to tunnel
mode, and that once the first request is sent to one of the servers,
all subsequent ones are send there as well regardless of the content
switching rules.

Gaurav, please send the output of "haproxy -vv". If your version is
older than 1.5 you'll have to add "option http-server-close" or even
"option forceclose" in your configuration. The best solution is of
course to upgrade it to get one which supports keep-alive.

Willy