# Managing server configuration

Octopus Deploy is made up of a number of different configuration sets and managing them can be performed through a few different channels.

## Octopus Web Portal

In the Octopus Web Portal, you can access configuration by navigating to **Configuration ➜ Settings**, this will show which configuration items are available.

:::figure
![Web Portal Configuration](/docs/img/administration/managing-infrastructure/server-configuration/octopus-v4-config-webportal.png)
:::

## Octopus.Client

Using [Octopus.Client](/docs/octopus-rest-api/octopus.client), each of the configuration types can be managed programmatically, reading from and writing back to the Octopus Deploy database.

:::div{.hint}
This requires version 15.2.0 or later of the client library.
:::

### .Net / C#

To access the API from .Net you will need to add a NuGet reference to the [Octopus.Client](https://www.nuget.org/packages/Octopus.Client/) library and to at least one of the above Extensibility libraries.

```csharp
var server = "http://myoctopusserver";
var apikey = "API-XXXXXXXX";
var endpoint = new OctopusServerEndpoint(server, apikey);
var repository = new OctopusRepository(endpoint);
var guestConfig = repository.Configuration.Get<GuestConfigurationResource>();
guestConfig.IsEnabled = true;
guestConfig = repository.Configuration.Modify(guestConfig);
```

For the Web Portal and Authentication configurations, you need the [Octopus.Client](https://www.nuget.org/packages/Octopus.Client/) NuGet package:

```csharp
var server = "http://myoctopusserver/";   
var apiKey = "API-XXXXXXXX";             // Get this from your 'profile' page in the Octopus Web Portal
var endpoint = new OctopusServerEndpoint(server, apiKey);
var repository = new OctopusRepository(endpoint);
var webPortalConfig = repository.Configuration.Get<WebPortalConfigResource>();
webPortalConfig.Security.HttpStrictTransportSecurityEnabled = true;
webPortalConfig = repository.Configuration.Modify(webPortalConfig);
```

### PowerShell

```powershell
add-type -path 'C:\PathTo\Octopus.Client.dll'
$server = 'http://myoctopusserver/'
$apikey = 'API-XXXXXXXX';
$endpoint = New-Object Octopus.Client.OctopusServerEndpoint $server,$apikey
$repo = New-Object Octopus.Client.OctopusRepository $endpoint
$getMethod = $repo.Configuration.GetType().GetMethod("Get").MakeGenericMethod([Octopus.Client.Model.Authentication.Guest.GuestConfigurationResource])
$modifyMethod = $repo.Configuration.GetType().GetMethod("Modify").MakeGenericMethod([Octopus.Client.Model.Authentication.Guest.GuestConfigurationResource])
$guestConfig = $getMethod.Invoke($repo.Configuration, $null)
$guestConfig.IsEnabled = $true;
$guestConfig = $modifyMethod.Invoke($repo.Configuration, $guestConfig)
```

For more information on using the Octopus.Client library see [Octopus.Client](/docs/octopus-rest-api/octopus.client).