Add `CSP` documentation
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@ -40,6 +40,19 @@ config_resource = "icingaweb_db"
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module_path = "/usr/share/icingaweb2/modules"
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```
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### Security Configuration <a id="configuration-general-security"></a>
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| Option | Description |
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|------------------|------------------------------------------------------------------------------------------------------------------------------------------------|
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| use\_strict\_csp | **Optional.** Set this to `1` to enable strict [Content Security Policy](20-Advanced-Topics.md#advanced-topics-security-csp). Defaults to `0`. |
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Example:
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```
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[security]
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use_strict_csp = "1"
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```
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### Logging Configuration <a id="configuration-general-logging"></a>
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Option | Description
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@ -4,6 +4,7 @@ This chapter provides details for advanced Icinga Web 2 topics.
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* [Global URL parameters](20-Advanced-Topics.md#global-url-parameters)
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* [VirtualHost configuration](20-Advanced-Topics.md#virtualhost-configuration)
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* [Content Security Policy (CSP)](20-Advanced-Topics.md#advanced-topics-csp)
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* [Advanced Authentication Tips](20-Advanced-Topics.md#advanced-topics-authentication-tips)
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* [Source installation](20-Advanced-Topics.md#installing-from-source)
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* [Automated setup](20-Advanced-Topics.md#web-setup-automation)
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@ -115,6 +116,37 @@ Reload Apache and open the FQDN in your web browser.
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systemctl reload httpd
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```
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### Content Security Policy (CSP) <a id="advanced-topics-csp"></a>
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Elevate your security standards to an even higher level by enabling the [Content Security Policy (CSP)](https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP) for Icinga Web.
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Enabling strict CSP can prevent your Icinga Web environment from becoming a potential target of [Cross-Site Scripting (XSS)](https://developer.mozilla.org/en-US/docs/Glossary/Cross-site_scripting)
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and data injection attacks. After enabling this feature Icinga Web defines all the required CSP headers. Subsequently,
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only content coming from Icinga Web's own origin is accepted, inline JS is prohibited, and inline CSS is accepted only
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if it contains the nonce set in the response header.
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We decided against enabling this by default as we cannot guarantee that all the modules out there will function correctly.
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Therefore, you have to manually enable this policy explicitly and accept the risks that this might break some of
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the Icinga Web modules. Icinga Web and all it's components listed below, on the other hand, fully support strict CSP. If
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that's not the case, please submit an issue on GitHub in the respective repositories.
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Here is a list of all Icinga Web components that are capable of strict CSP.
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| Name | CSP supported since |
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|-----------------------------------|-------------------------------------------------------------------------------------------|
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| Icinga DB Web | [v1.1.0](https://github.com/Icinga/icingadb-web/releases/tag/v1.1.0) |
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| Icinga Reporting | [v1.0.0](https://github.com/Icinga/icingaweb2-module-reporting/releases/tag/v1.0.0) |
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| Icinga IDO Reports | [v0.10.1](https://github.com/Icinga/icingaweb2-module-idoreports/releases/tag/v0.10.1) |
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| Icinga Cube | [v1.3.2](https://github.com/Icinga/icingaweb2-module-cube/releases/tag/v1.3.2) |
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| Icinga Business Process Modeling | [v2.5.0](https://github.com/Icinga/icingaweb2-module-businessprocess/releases/tag/v2.5.0) |
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| Icinga Certificate Monitoring | [v1.3.0](https://github.com/Icinga/icingaweb2-module-x509/releases/tag/v1.3.0) |
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| Icinga PDF Export | [v0.10.2](https://github.com/Icinga/icingaweb2-module-pdfexport/releases/tag/v0.10.2) |
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| Icinga Web Jira Integration | [v1.3.2](https://github.com/Icinga/icingaweb2-module-jira/releases/tag/v1.3.2) |
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| Icinga Web Graphite Integration | [v1.3.0](https://github.com/Icinga/icingaweb2-module-graphite/releases/tag/v1.3.0) |
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| Icinga Web GenericTTS Integration | [v2.1.0](https://github.com/Icinga/icingaweb2-module-generictts/releases/tag/v2.1.0) |
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| Icinga Web Nagvis Integration | [v1.2.0](https://github.com/Icinga/icingaweb2-module-nagvis/releases/tag/v1.2.0) |
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| Icinga Web AWS Integration | [v1.1.0](https://github.com/Icinga/icingaweb2-module-aws/releases/tag/v1.1.0) |
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## Advanced Authentication Tips <a id="advanced-topics-authentication-tips"></a>
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### Manual User Creation for Database Authentication Backend <a id="advanced-topics-authentication-tips-manual-user-database-auth"></a>
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