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EDIT: Added some extra logs at the end

I'm trying to make Mono 3.0 work on CentOS 6 with Apache. I have compiled Mono, mod_mono and the XPS server from the source. But now I'm getting errors because it doesn't seem to be pointing to the right place.

I want to store my files under /home/mvcgui/wwwroot/. I have put the 'apache' user in the mvcgui group. I've created a VHOST pointing there, like so:

<VirtualHost _default_:80>

        ServerAdmin webmaster@tralala.com

        DocumentRoot /home/mvcgui/wwwroot

#       ServerName mvcgui

        ErrorLog /home/mvcgui/logs/error.log

        <Directory />

                Options FollowSymLinks

        </Directory>

        MonoServerPath mvc4 "/opt/mono/bin/mod-mono-server4"

        # Dev mode

        MonoDebug mvc4 true

        MonoSetEnv mvc4 MONO_IOMAP=all;PATH=/opt/mono/bin;LD_LIBRARY_PATH=/opt/mono/lib/:$LD_LIBRARY_PATH;



        MonoApplications mvc4 "/:/home/mvcgui/wwwroot"

        <Location />

        Allow from all

        Order allow,deny

        MonoSetServerAlias mvc4

        SetHandler mono

        SetOutputFilter DEFLATE

        </Location>

</VirtualHost>

However when I make a request to localhost I get this error in the VHOST logs:

Fri Mar 22 15:52:35 2013] [error] [client ::1] (13)Permission denied: access to / denied

I believe however that the rights are correct?

[root@localhost mvcgui]# ls -l

total 8

drwxrwxr-x 2 mvcgui mvcgui 4096 Mar 22 11:41 logs

drwxrwxr-x 7 mvcgui mvcgui 4096 Mar 22 11:14 wwwroot



[root@localhost wwwroot]# ls -l

total 80

drwxr-xr-x 2 mvcgui mvcgui  4096 Mar 22 11:13 bin

drwxr-xr-x 5 mvcgui mvcgui  4096 Mar 22 11:13 Content

-rw-r--r-- 1 mvcgui mvcgui 32038 Mar 22 11:13 favicon.ico

-rw-r--r-- 1 mvcgui mvcgui  3790 Mar 22 11:13 Foundation_readme.txt

-rw-r--r-- 1 mvcgui mvcgui    97 Mar 22 11:13 Global.asax

-rw-r--r-- 1 mvcgui mvcgui   246 Mar 22 11:13 humans.txt

drwxr-xr-x 2 mvcgui mvcgui  4096 Mar 22 11:14 Images

-rw-r--r-- 1 mvcgui mvcgui  3103 Mar 22 11:13 packages.config

-rw-r--r-- 1 mvcgui mvcgui   110 Mar 22 11:13 robots.txt

drwxr-xr-x 3 mvcgui mvcgui  4096 Mar 22 11:14 Scripts

drwxr-xr-x 8 mvcgui mvcgui  4096 Mar 22 11:14 Views

-rw-r--r-- 1 mvcgui mvcgui  4543 Mar 22 11:13 Web.config

[root@localhost wwwroot]# 

Note that SELinux and iptables are disabled.

Where could I look to get more troubleshoot info?

EDIT: Under /etc/httpd/logs/error_log I have noticed a more detailed error that shows up only when I start the service:

[Mon Mar 25 09:48:37 2013] [notice] caught SIGTERM, shutting down

mod-mono-server received a shutdown message

[Mon Mar 25 09:48:38 2013] [notice] suEXEC mechanism enabled (wrapper: /usr/sbin/suexec)

[Mon Mar 25 09:48:38 2013] [notice] Digest: generating secret for digest authentication ...

[Mon Mar 25 09:48:38 2013] [notice] Digest: done

[Mon Mar 25 09:48:38 2013] [notice] Apache/2.2.15 (Unix) DAV/2 mod_mono/2.10 configured -- resuming normal operations

Listening on: /tmp/mod_mono_server_global

Root directory: /

Listening on: /tmp/mod_mono_server_global

Root directory: /

Error: Address already in use

mod-mono-server4

Exception caught during reading the configuration file:

System.MissingMethodException: Method not found: 'System.Configuration.IConfigurationSectionHandler.Create'.

  at System.Configuration.ClientConfigurationSystem.System.Configuration.Internal.IInternalConfigSystem.GetSection (System.String configKey) [0x00000] in <filename unknown>:0

  at System.Configuration.ConfigurationManager.GetSection (System.String sectionName) [0x00000] in <filename unknown>:0

  at System.Configuration.ConfigurationManager.get_AppSettings () [0x00000] in <filename unknown>:0

  at Mono.WebServer.Apache.Server.get_AppSettings () [0x00001] in /home/arnaud/Downloads/xsp-2.10.2/src/Mono.WebServer.Apache/main.cs:208

  at Mono.WebServer.Apache.Server+ApplicationSettings..ctor () [0x0002a] in /home/arnaud/Downloads/xsp-2.10.2/src/Mono.WebServer.Apache/main.cs:63

Error: Directory "/home/mvcgui/wwwroot/" not found.

[root@localhost conf.d]#

I ran into the same problem on openSuse 13.1 after upgrading to Mono 3.2 and apache 2.4
The problem for me was actually a simple permission problem, my htdocs directory was not accessible by the mod-mono-server process.

I am using the User and Group directives of apache to set the ownership of the apache process. Previously, these settings where inherited by mod-mono-server, but this doesn't work in apache-2.4 due to a bug in mod_mono. You can check the user and group id mod-mono-server is running under with:

ps ax -o pid,user,group,ruser,rgroup,args|grep mono