Running ASP.NET applications in Ubuntu using ModMono

ModMono is an Apache module which provides ASP.NET support for Apache web server. We will be using Apache as an alternative for Microsoft’s IIS in Windows.

Part One: Installation

For ModMono to work first you need to install Apache. You can click here for instructions on how to install Apache. If you have already installed Apache, you can skip this step.

After that, install ModMono by executing the following command (single line). This will install ModMono with support for ASP.NET 2.0

sudo apt-get install libapache2-mod-mono mono-apache-server2

After the installation is complete, restart Apache and activate the ModMono module by executing the following commands:

sudo /etc/init.d/apache2 restart

sudo a2enmod mod_mono

Now we have to change the version ASP.NET to 2.0 in the configuration file. Open the config file in Gedit:

gksu gedit /etc/apache2/mods-available/mod_mono.conf

Once the conf file is open in Gedit, put a hash (#) in front of the line “Include /etc/mono-server/mono-server-hosts.conf” and delete the hash in front of “Include /etc/mono-server2/mono-server2-hosts.conf”. Now the two lines should look like this:

#Include /etc/mono-server/mono-server-hosts.conf
Include /etc/mono-server2/mono-server2-hosts.conf

Save the file and close it. Now restart Apache one more time

sudo /etc/init.d/apache2 restart

The installation is now complete.

Part 2: Testing

Now it’s time to test the installation. We are going to create a site called Ubuntu. But first we need to create a configuration file for this site inside the directory “etc/apache2/sites-available/”. To do this, execute the following command:

gksu nautilus /etc/apache2/sites-available/

This will open the directory in Nautilus. Now right-click inside the window and create a new empty file and name it “Ubuntu”. Then open the file using a text editor and paste the following text inside it, save and close.

Alias /Ubuntu “/var/www/Ubuntu”
AddMonoApplications default “/Ubuntu:/var/www/Ubuntu”
<Location /Ubuntu>
SetHandler mono

(**Note: The formatting of the double-quotes in the above code have to be changed manually. Just delete all the double quotes and type them back again. Make sure you do this, otherwise it may not work.)

Now inside Nautilus, browse to /var/www/ directory and create a new folder called “Ubuntu”. Inside this folder create a new empty file and name it “index.aspx”. Then open this file using a text editor and type the following line of code in it. (Once again, don’t forget to delete and re-type the double-quotes.)

<% Response.Write(“It works like charm!”); %>

Save the file, close it and close Nautilus too. Then come the final steps where we enable the site and restart Apache one last time:

a2ensite Ubuntu

sudo /etc/init.d/apache2 restart

That’s it! Now open your web browser and point to: http://localhost/Ubuntu/index.aspx

You should see the text “It works like charm!” on the page.

Part 3 (Optional): Disabling a site

In part 2 we created a site called Ubuntu. Before we were able to view the aspx page properly we needed to enable the site in Apache. After we’re done testing there’s no need for the Ubuntu site anymore. Before you remove the files, you need to disable the site first.

Open a new Terminal window and execute the following command:

a2dissite Ubuntu

Now you have to remove the file “Ubuntu” we created in the “etc/apache2/sites-available/” directory:

cd /etc/apache2/sites-available/

sudo rm Ubuntu

Then we have to delete the “Ubuntu” folder inside the “/var/www/” directory (which contains index.aspx file) and restart Apache:

cd /var/www/

sudo rm -rf Ubuntu

sudo /etc/init.d/apache2 restart

Now you can close Terminal. Open your browser, clear cache and point to http://localhost/Ubuntu/index.aspx ; it will no longer work.


Even if you have PHP5 and MySQL installed, installing ModMono won’t affect them. So you will be able to work with your PHP and ASP.NET files at the same time.


Ubuntu Community and SqlServerDotNet. Parts 1 & 2 are mainly based on the information from these two sources, but I’ve added some steps in order to simplify the process even more.


83 Responses to Running ASP.NET applications in Ubuntu using ModMono

  1. ridho says:

    cool 🙂

    iwas try and it work

    thank you so much

    good job


  2. anomit says:

    Thanks a lot. I was totally lost in the wiki docs and all that stuff till I found this post.

  3. ryan says:

    I followed everything up until “That’s it! Now open your web browser and point to: http://localhost/Ubuntu/index.aspx” As when I click the link I get greeted by 503 Service error Service Temporarily Unavailable The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later. Maybe you know what the problem is?

  4. pujung says:

    After typing:
    “sudo apt-get install libapache2-mod-mono mono-apache-server2” and finish downloading I got this for long time:

    Setting up mono-gmcs (1.9.1+dfsg-4ubuntu2) …
    Setting up mono-apache-server (1.9.1-2) …

    Setting up mono-xsp2-base (1.9.1-2) …
    Setting up mono-apache-server2 (1.9.1-2) …
    * Reloading web server config apache2 [ OK ]
    * Restarting web server apache2 … waiting [ OK ]

    What should I do?

  5. pujung says:

    After starting part 2 (testing), I got this error below:

    ** (nautilus:6503): WARNING **: Unable to add monitor: Operation not supported
    Nautilus-Share-Message: Called “net usershare info” but it failed: ‘net usershare’ returned error 255: net usershare: cannot open usershare directory /var/lib/samba/usershares. Error No such file or directory
    Please ask your system administrator to enable user sharing.

    — Hash table keys for warning below:
    –> file:///var/www/Ubuntu
    –> file:///etc/apache2/sites-available
    –> file:///var
    –> file:///etc/apache2
    –> file:///var/www
    –> file:///

    (nautilus:6503): Eel-WARNING **: “nautilus-metafile.c: metafiles” hash table still has 6 elements at quit time (keys above)

    (nautilus:6503): Eel-WARNING **: “nautilus-directory.c: directories” hash table still has 6 elements at quit time
    seahorse nautilus module shutdown

    What should I do?

  6. Ray says:

    Works great until I try:
    Server Error in ‘/Ubuntu’ Application
    The resource cannot be found.

    Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly.

    Resource URL: /Ubuntu/index.aspx
    Version information: Mono Version: 2.0.50727.42; ASP.NET Version: 2.0.50727.42

    I was on the CUSP of greatness!

  7. Rob says:

    Unfortunately this seems not to be true on Hardy (8.04). There is no way to have mod_php5 and mod_mono at the same time. Installing the one uninstalls the other.

  8. nass says:

    I’ve only tested this on Intrepid (8.10)

  9. Eliasibe says:

    Every thing worked ok!!
    Thank you!

  10. Perry says:

    Can you help me with this? Been googling for an hour with no luck.

    Using VS2008 I “publish” (precompile) a site and copy it over to an Apache server running mod_mono (2.2). Run site, looks good.

    Make a change, republish, recopy, run, still get old site.

    There seems to be nothing I can do short of restarting Apache to get the new pages served.

    There’s got to be a better way, right?

  11. […] installing Apache, PHP, MySQL and phpMyAdmin, you can install support for ASP.NET files in Ubuntu. Don’t worry, you will be able to work with php and aspx files on the same Apache […]

  12. sudath says:

    Works great until I try:
    Server Error in ‘/Ubuntu’ Application

    Process has not been started.
    Description: HTTP 500. Error processing request.
    Stack Trace:
    System.InvalidOperationException: Process has not been started.
    at System.Diagnostics.Process.get_ExitCode () [0x00000]
    at (wrapper remoting-invoke-with-check) System.Diagnostics.Process:get_ExitCode ()
    at Microsoft.VisualBasic.VBCodeCompiler.CompileFromFileBatch (System.CodeDom.Compiler.CompilerParameters options, System.String[] fileNames) [0x00000]
    at Microsoft.VisualBasic.VBCodeCompiler.CompileAssemblyFromFileBatch (System.CodeDom.Compiler.CompilerParameters options, System.String[] fileNames) [0x00000]
    at System.CodeDom.Compiler.CodeDomProvider.CompileAssemblyFromFile (System.CodeDom.Compiler.CompilerParameters options, System.String[] fileNames) [0x00000]
    at System.Web.Compilation.AssemblyBuilder.BuildAssembly (System.Web.VirtualPath virtualPath, System.CodeDom.Compiler.CompilerParameters options) [0x00000]
    at System.Web.Compilation.AssemblyBuilder.BuildAssembly (System.Web.VirtualPath virtualPath) [0x00000]
    at System.Web.Compilation.BuildManager.BuildAssembly (System.Web.VirtualPath virtualPath) [0x00000]
    at System.Web.Compilation.BuildManager.GetCompiledType (System.String virtualPath) [0x00000]
    at System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath (System.String virtualPath, System.Type requiredBaseType) [0x00000]
    at System.Web.UI.PageParser.GetCompiledPageInstance (System.String virtualPath, System.String inputFile, System.Web.HttpContext context) [0x00000]
    at System.Web.UI.PageHandlerFactory.GetHandler (System.Web.HttpContext context, System.String requestType, System.String url, System.String path) [0x00000]
    at System.Web.HttpApplication.GetHandler (System.Web.HttpContext context, System.String url, Boolean ignoreContextHandler) [0x00000]
    at System.Web.HttpApplication.GetHandler (System.Web.HttpContext context, System.String url) [0x00000]
    at System.Web.HttpApplication+c__Iterator2.MoveNext () [0x00000]
    Version information: Mono Version: 2.0.50727.42; ASP.NET Version: 2.0.50727.42

  13. edpresident says:

    Thanx this tutorial. But a have a question. After installition mod mono, PHP runs? I heard to damage PHP this module on ubuntu 8.04 Hardy? Did you tried?

  14. halit yılmaz says:

    it works fine on ubuntu 9.10 desktop but when i tried it on 9.10 server it says service unavailable.
    what should i do

  15. Tarnutpong says:

    It work! work! on Ubuntu 10.04 LTS. Thank a lot.

  16. junjun says:

    when i try to access the http:\\localhost/Ubuntu/index.aspx it says that ” you have chosen to open index.aspx…… which is a aspx File
    from :http://localhost.. there is a pop up window.

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  20. telmessos says:

    I did everything step by step. When I call index.aspx, it tries to open the file 🙂

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