## Index → Configuration

## Configuration Quickstart

This section briefly describes the whole administration web interface provided by cherokee-admin. This is the only recommended way of configuring Cherokee. If you are looking for development information, you should refer to the appropriate section, especially cherokee.conf file specification.

We will first show a quick overview of the available options, followed by a simple walkthrough. You can learn more about the options in their specific documentation entries.

### Overview

- Status: This gives a quick view of the server status.

- General: There are a number of entries that specify the most significant configuration options such as the port - or ports - that the server will listen to, the default timeout, whether to support keep-alive connections and so on.

- Virtual servers: If you want your web server to work with more than one domain you will have to create Virtual servers other than the `default` one. Each one will have a completely independent configuration: paths, behavior, logging facilities, etc.

- Information Sources: Define the resources that will be providing information. For instance, PHP.

- Icons: Associate icon images with one or more file extensions. Used to offer directory listings.

- Mime Types: Manage MIME types.

- Advanced: This is to configure the most complex parameters of the server and how it interacts with the operating system. If you are unsure about any of the options here, better not mingle with them. Default values should work just fine.

### Walkthrough

There is very little set up you must do to have a perfectly functional web server out of the box. Cherokee's default configuration can be used to serve any typical PHP-driven dynamic website.

If you have a specific need, you should check out the recipes present in the Cookbook section of the documentation. Among other subjects, you can find information about Cherokee optimizations, setting up efficient Authentication mechanisms, or configuring several popular application frameworks.

In this tutorial we will be setting up a system with a couple of virtual servers, PHP support, some redirection rules and a simple authentication mechanism.

To follow this walkthrough you need to be running cherokee-admin. This is an administration tool, so you will need system administrator rights.

    # cherokee-admin

    Login:
      User:              admin
      One-time Password: yp7F1pMhtmD58DbB

    Cherokee Web Server 0.98.0b2721 (Jan 19 2009): Listening on port 127.0.0.1:9090,
    TLS disabled, IPv6 disabled, using epoll, 1024 fds system limit, max. 505
    connections, caching I/O, single thread

Now you can access the administration interface simply by opening your web browser and visiting http://localhost:9090

The User and One-time Password will be required initially. This is to prevent other users of the local host from being able to configure the server unless they have access to the password. This is also very useful to allow temporary access to a remote administrator.

If your user doesn't have enough privileges you will be notified. Also if no configuration file exists you will be prompted to create one with the default settings.

That is a good starting point. Right now your web server will not be running yet. We will only be using two of the available tabs to adjust some more settings: General and Virtual Servers.

This is an example of what you'll be seeing:

Of course, once we're done we will have to apply our changes and launch the server. The configuration changes must be submitted to the server, be it automatically if possible or by using the appropriate form submitting buttons. But no change is reflected in the configuration file until you `Save` the changes. You can be sure of not damaging anything while playing around with `cherokee-admin`. At least not until you `Save` the changes. Note that, if the Cherokee server is running, the applied modifications will only affect the instance being executed if either `Graceful restart` or `Hard restart` are selected. No restart simply modifies the configuration file, but doesn't affect the currently running instance. A `graceful restart` will preserve the old set up for any prior connections, while a `hard restart` will kill every connection and instantly apply the changes.

This is what the `General` tab looks like:

We will only be modifying the Server Permissions. It usually is a poor choice to run services with super user privileges. Set both User and Group to `www-data`. Your system might already have another user account specifically for the purpose of running a webserver. Use that instead if so, or create the `www-data` user if you don't already have one.

Next is the Virtual Servers tab:

When you start, you will only have one virtual server called `default`. You can begin by cloning it as `example`. While you are at it you should also append the following line to your `/etc/hosts` file (in Windows you will find this as `%WINDIR%\system32\drivers\etc\hosts`).

    127.0.0.1       example.net example.org

This is to allow your system to resolve requests for `example.net` or `example.org` locally. Of course, once you are out in the Wild (you know, in the Internet), you will need proper DNS records.

`default`

  We will leave default untouched except for the document root path, which we will change. This is done through the `Basics` tab. You could create by hand /var/www/default for example and set it up in the appropriate field.

  If you access your machine by IP or a DNS resolution points in that direction for any particular domain, the contents of your document root directory will be exposed (/var/www by default unless you changed that during the build process). Whenever there is no match for a virtual server specifically defined in your list, the `default` virtual server will be the one responding.

  Right now any file with the php extension will be served after being processed by the PHP interpreter (you should have `php-cgi` installed in your system for this, though).

  Any requested file would be sent. If a directory is requested, a file called index.php or index.html will be served if it is present (the search will be performed in that order; you can configure this in the `Basics` tab). If not, a directory listing is offered instead. If you would want to prevent this behavior but would like to keep up serving whatever content is requested directly, simply change the `List & Send` handler for the `Static Content` handler.

`example`

  For now this virtual server is an exact copy of the untouched `default` virtual server. Create some new directories /var/www/example and /var/www/example/auth, and configure the first one as default document root path.

  Next, setup `example.net` and `example.com` in the `Domain names` tab. We'll erase everything in the Targets list within the `Behavior` tab, except the `default` rule. With this we'll only be able to serve static content.

  Accessing the URL http://example.org should now show a list of available files and directories under /var/www/example/.

  Now lets password protect the `auth` directory. Add a new `Directory` class rule pointing to `/auth`. Then, through the `Security` tab, add a `Validation Mechanism` under `Authentication`.

  The field `Realm` is mandatory. Lets set it as `Secured Area`. If you choose `PAM` and impose no more restrictions, only users with a local account in your system will be able to access the secured zone at http://example.net/auth Other mechanisms would work in a similar fashion but with their specific requirements. For example, had you chosen `Plain text file` instead of PAM you would have had to specify a `Password File`. For example, it could have been `/var/www/passwords.txt` with the following contents:

      testuser1:password1
      testuser2:password2

  Note that the rule must not be flagged as `Final`, or else no other rules will be applied afterwards and no access will be given to any contents. This is because at this point we have not defined any handler for the `/auth` rule and nothing would be served.

  Refer to the Cookbook for detailed examples on the different options.

  Lastly, lets configure a redirection rule by choosing a "Regular Expression" as the new rule type. Type the following regex: `^/rss.*$` Then, within the `Handler` selection tab specify a target: `/feed`

  And voilà! A request of the form http://example.net/rss2 would be redirected to http://example.net/feed

  Any rule type can be used with the redirection handler: Directory, Extensions, Regular Expression, etc. In this case the fact that the rule type is "Regular Expression" affects only slightly. Refer to the appropiate section of the documentation, Redirection Handler, for more details.

  Note that the `Type` of the Redirection is `External`. This means the server will instruct the requesting web client to fetch the redirected URL, which means the client will always know what the final URL is. This also means the redirection can be done to servers other than your own. If it were internal, the redirection would be invisible (not showing the target URL), but it would be limited to the same `virtual server`.

  A much more general redirection could be one using these values:

  Regular Expression

    `^/(.*)$`

  Substitution

    http://www.example.com/example.net/$1

  Note that this rule would have to be external since `example.com` is not among the domains managed by our configuration.

  This would redirect every petition to a site hosted under `http://example.com/example.net`. For instance, the request for `http://example.net/image.jpg` would return `http://example.com/example.net/image.jpg`.

  If you need more details, Check out the documentation for the redirection handler.